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Arc-Flash Hazard

Analysis

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Arc Flash Hazard Analysis

Calculation of Incident Energy&Flash Protection Boundary

Cargill India Pvt. LtdSurvey No. 415, Bhimasar Padana Road,

PO. Bhimasar, Ta Anjar Dist. - Kutch, Gujarat

Study Coordinated by

Excel Electricals

C/23 KARELIBAUG IND. CO. OP. ESTATE,

NEAR TELEPHONE, OFFICE, KARELIBAUG.

VADODARA-390018

. Tele: 2462913.

Email: - [email protected]

Study Conducted and Compiled by

5, Nana Street Nagar, Chennai, 600017,

Mobile No::9884370326

Email:[email protected]

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1 Purpose 2

2 Regulatory Background 2

3 What is Arc Flash 3

4 Flash Hazard Analysis and Flash Protection Boundary 4

5 Personal Protective Equipment 5

6 References 6

7 Executive Summary 7

8 Detailed Summary 8

9 Single Line diagram 11kV-0.433 kV 10

10 Single Line diagram for coordination study short circuit currents-scenerio 1-Grid 11

11 Short circuit detailed Report -Scenerio 1 Grid Feeding 12

12 Single Line diagram for coordination study short circuit currents-scenerio 2-TB 16

13 Short circuit detailed Report -Scenerio 2 TB Feeding 17

14 Single Line diagram for coordination study short circuit currents-scenerio 3-SingleDG

21

15 Short circuit detailed Report -Scenerio 3 Single DG Feeding 22

16 Single Line diagram for coordination study short circuit currents-scenerio 4-parallel

DG

26

17 Short circuit detailed Report -Scenerio 4 Parallel DG Feeding 27

18 Setting Calculations for Transformers 31

19 Setting Details for 11 kV switch Gear 33

20 Setting Details for 0.433 kVPCC (Relays ) 37

21 TCC Curves 51

Contents

22 Table 2-Detailed Summary of Calculations 5423 Single Line diagram for ARC FLASH STUDY 55

24 Labels 56

25 Sample work permit 88

26 Estimated Total Energy Graph for various Busbars 89

27 Arc Flash Boundary Figure 121

28 PPE details 123

29 Approach Boundaries to Live parts 124

30 Illustrated Protective Clothing and Personal Protective Equipments 125

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PURPOSE

The purpose of this report is to document and tabulate Incident Energy andthe Flash Protection Boundary at various 11 KV and 433 Volt unit substation

buses at Clients factory in Kutch, Gujarat in the unlikely event that electrical

equipment failures occur when work is being performed in accordance with

plant policies and procedures.

The results presented in this report are to be used as a guide in the selection

of Personal Protective Equipment (PPE) if work must be performed on or near

energized electrical equipment.

DISCUSSION

Regulatory Background

U.S. Department of Labor, Occupational Safety and Health Administration

(OSHA) are the enforcement agency for workplace incidents involving

personnel. If there is an arc flash incident, it will most likely be investigated by

OSHA.

Currently, OSHA is recommending that companies follow NFPA 70E as a

guideline for worker safety. In addition, OSHA has begun to review NFPA 70E

guidelines as a part of their routine inspection procedures.

NFPA 70E (Standard for Electrical Safety Requirements for Employee

Workplaces) and NFPA 70 (National Electrical Code) provide the basis for

employers to determine if electrical hazards are present and to determine the

proper types of Personal Protective Equipment (PPE) that will protect

employees in the unlikely event that electrical equipment failures occur when

work is being performed in accordance with plant policies and procedures.

NEC Article 110.16 (Flash Protection) states: Switchboards, panel boards,

industrial control panels, meter socket enclosures, and motor control centers,

that are likely to require examination, adjustment, servicing, or maintenance

while energized, shall be field marked to warn qualified persons of potential

electric arc flash hazards. The marking shall be located so as to be clearly

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visible to qualified persons before examination, adjustment, servicing or

maintenance of the equipment.

Although there is no such regulation is prevailing in India M/s Cargill India Pvt.

Ltd were in the interest of safety requested M/s Excel Electricals to do ARC

FLASH STUDY for the entire Electrical distribution system and submit the

Report for selection of PPE and to indicate the Flash Protection boundary for

each Electrical Equipment such as Switch Boards, Panel boards, Control

panels etc. This task of analysis and study and submission of Report was

entrusted to M/s Interface Electronics Pvt Ltd who is submitting this report.

What is Arc Flash?

Arc Flash is the rapid release of energy due to an arcing fault between a

phase conductor and another phase conductor, neutral conductor, ground

conductor, or grounded surface. During an arcing fault, ionized gases in the

air gap between conductive surfaces become current conducting plasma.

Arcing faults are generally limited to systems where the bus voltage is in

excess of 250 volts, AC.

In AC systems, lower voltage levels normally will not sustain an arc as voltage

recovery is not quick enough for an arc to restrike after a zero current occurs.

An arcing fault is similar to the arc obtained during electric welding. Arcing

faults can be the result of a failure, such as: breakdown of insulation,

accidental contact, or momentary contact.

Hazardous Arc-Flash can occur in any electrical device in which voltage is

high enough to sustain an arc. In industrial settings, this includes:

Panel boards and switchboards

Motor control centers

Metal-clad switchgear

Transformers

Motor starters

High voltage switching and grounding equipment

Pad-mounted switching equipment

Meter bases and meter banks

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Any electrical equipment that has sufficient voltage to ionize the air gap

in the unlikely event that electrical equipment failure occurs

Flash Hazard Analysis and Flash Protection Boundary

Prior to commencing work on electrically energized conductors > 50 volts,

NFPA 70E 130.3 requires that a flash hazard analysis be completed in order

to protect personnel from the possibility of being injured by an arc flash. The

analysis shall determine the Flash Protection Boundary and the personal

protective equipment that shall be used within the Flash Protective Boundary.

Table 130.7(C)(a) can be used in lieu of an arc flash hazard analysis for

various tasks listed in the table. For tasks not listed, or for power systems with

greater short-circuit current capacity or longer fault clearing times, a flash

hazard analysis shall be required.

NFPA 70E 130.3(A) requires employers to establish a flash protection

boundary a distance from exposed energized electrical parts at which an

employee would sustain no more than a second degree burn if an electric arc

flash were to occur. Employees performing work on energized conductors

inside the flash protection boundary must be protected with appropriate PPE.

At voltage levels below 600 volts, the flash protection boundary is the distance

at which incident energy level is equal to 1.2 cal/cm 2. For situations where

fault-clearing time is 0.1 seconds or less, the flash protection boundary is the

distance at which incident energy level is equal to 1.5 cal/cm2.

When work is to be performed within the flash protection boundary, the flash

hazard analysis determines the incident energy exposure of the worker

(cal/cm2). This incident energy exposure level is based on the working

distance of the employees face and the chest areas from a potential arc

source for the specified task to be performed. Flame resistant clothing and

PPE used by the worker must be based upon the incident energy exposure

associated with the specific task. Recognizing that incident energy increases

as distance from arc flash decreases, additional PPE shall be used for any

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parts of the body that are closer than the distance at which the incident energy

was determined.

NFPA 70E 2004 is a safety standard for worker safety as a part of National

Fire Protection Association (NFPA) guidelines. Among other safe workplace

practices, it provides awareness on the hazards of arc flash incidents.

Steps required to comply with NFPA 70E, Chapter 1 Article 110.8 (B)(1)(b),

130.3, and 130.7 (C)(9)(a) include:

A comprehensive safety program. Employee arc flash awareness safety training.

Safety procedures and manuals that are updated to comply with the

NFPA 70E guidelines.

Up to date facility single line diagrams, short circuit studies andprotective device coordination studies

Arc flash assessment and analysis

Personal Protective Equipment

NFPA specifies the requirements for PPE for workers within flash protection

boundaries. All parts of the body, which may be exposed to arc flash, need to

be covered by appropriate PPE.

The entire PPE set may be comprised of fire retardant clothing, helmet,

headgear, face shield, safety glasses, gloves, shoes, etc. The amount of PPE

required needs to be determined on the basis of calculated incident energy on

a worker. The calculations need to be performed by a qualified person, such

as an engineer. The protective clothing should limit the incident energy

reaching the chest/face of the worker to less than 1.2 cal/cm2. Fire retardant

clothing provides thermal insulation and is also self-extinguishing. Protective

clothing is rated in cal/cm2.

ASSUMPTIONS & INPUTS

1. Short circuit values were calculated through the use of a computerized

plant electrical system model using field collected data and drawings.

2. The Calculations and results are based on the input information furnishedby Excel Electricals..

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3. Short circuit MVA of 250 for one sec is assumed at the point of supply for

calculation purpose, as the correct fault level is not available from the local

Electricity authorities.

4. Minimum personnel distance from the arc fault was determined using

standard industry practice.

References

1. NFPA 70 - National Electrical Code - 2005 Edition

2. NFPA 70E - Standard for Electrical Safety in the Workplace - 2004 Edition

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EXECUTIVE SUMMARY

Calculations were prepared utilizing EDSA Paladin Design Base 4, a

commercially available, computer aided engineering tool for the

analysis of industrial, utility, and commercial electrical power systems.

Arc flash hazard analysis was developed within the short circuit module

of EDSA Paladin Design base 2. A copy of the one line diagram

developed within EDSA is included as an attachment.

A table giving the details BUS NAME, ARC GAP, BOLTED FAULT,

ESTIMATED ARC FAULT, ESTMATED ARC FLASH BOUNDARY, INCIDENT OF

ENERGY, WORKING DISTANCE and REQUIRED CLOTHING CLASSis included

in the report

Illustrations of different PPE are given in the Report.

Warning Labels as Generated for various Buses based on the Energy

incident calculations is given in the report.

Graph giving the Incident of Energy with reference to Distance is

given for all the Busses for reference.

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DETAILED SUMMARY

Incident energy and arc flash boundary calculations were prepared utilizing

EDSA-Paladin Design Base 2. The analysis yields results as required by

NFPA-70E, namely, specification of the arc flash boundary (AFB) and the

incident arc energy at a probable working distance. We have evaluated the

calculations for two different fault levels namely 5000 MVA sec and 1500 mva

sec at the Incoming side of the Plant. Complete results are listed in Table 1.

and Table 2 respectively. The graphs and the warning Labels are prepared

based on Table I only.

An explanation of the data presented in Table 1 is as follows:

Arc Fault Bus Name: This is the name of the buses where an arc flash

is postulated.

Arc Fault Bus Voltage: The nominal voltage of the bus where an arcflash is postulated.

Arc Gap (mm): This is the gap between the phase conductors. Thegap is specified according to voltage.

Bolted Fault (kA): This is the calculated current for a 3-phase bolted

fault at the faulted bus.

Estimated Arc Fault (kA): This is the estimated current when arc

resistance is included in calculation. When calculating incident energy,

bolted fault current at the faulted bus is used.

Arc Time (sec): Total duration of arc fault as explained in assumptions

and inputs.

Estimated Arc Flash Boundary: The flash protection boundary distance

in cm for the arc gap, bolted fault current, and arc time as explained

above.

Working Distance: Approximate working distance in cm

Incident Energy (cal/cm): This is the incident energy from arc flash

corresponding to the trip device. The trip time associated with the trip

device is used in the calculation. The rating of personal protective

equipment (PPE) worn by workers should be based on this value.

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Required Clothing Class: This is the hazard/risk category as per NFPA70E. Appropriate PPE, as listed in Table 5, is recommended according

to this classification.

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC CurrentPGVCL 11000 13122 34416 13122 13122

Main panel_TB 433 29375 64185 29375 29375

Main panel BB 433 29328 63495 29328 29328

ENGG OFF 433 22210 39332 22210 22210

BOILER 2 433 22112 38933 22112 22112

BOILER1 433 22112 38933 22112 22112

PCC AUX 433 22052 40835 22052 22052

Refinary 1 433 19122 31956 19122 19122

FIRE PUMP PANEL 433 18463 33686 18463 18463

Coal H Plant 433 18051 30712 18051 18051

CAP1 433 16743 28488 16743 16743

DCT2 433 16057 28400 16057 16057

STREET LIGHT 433 15791 25237 15791 15791

Bag Filter1 433 15630 26022 15630 15630

Work Shop 433 14318 22942 14318 14318

VPDB 433 13721 24096 13721 13721

Bag Filter2 433 13715 23422 13715 13715

HYDROGENERATION 433 13176 20766 13176 13176

FRACTIONATION 433 13097 20621 13097 13097

3P Fault - IEC60909 Method

Short Circuit Detailed Report MAINS SOURCE FAULT 250MVASEC

SCENERIO 1 GRID FEEDING

CCT1 433 12146 18902 12146 12146

Packing MCC 3 433 11752 17993 11752 11752

Packing MCC 2 433 11688 17884 11688 11688

Packing MCC 1 433 11436 17458 11436 11436

DM PLANT 433 9812 14887 9812 9812

CCT2 433 8972 13410 8972 8972

DCT 3 433 8173 12158 8173 8173

WAREHOUSE1 433 7582 11236 7582 7582

WAREHOUSE2 433 7582 11236 7582 7582

CAPACITOR PNL 433 7555 11193 7555 7555

AOP 433 5957 8772 5957 5957ETP 433 5530 8122 5530 5530

CRUDE OIL TANK 433 5156 7318 5156 5156

ROT 433 4389 6223 4389 4389

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

PGVCL 11000 13122 34416 13122 13122

Main panel_TB 433 25740 56135 25740 25740

Main panel BB 433 25698 55526 25698 25698ENGG OFF 433 19396 34266 19396 19396

BOILER 2 433 19310 33917 19310 19310

BOILER1 433 19310 33917 19310 19310

PCC AUX 433 19260 35584 19260 19260

Refinary 1 433 16675 27809 16675 16675

FIRE PUMP PANEL 433 16103 29322 16103 16103

Coal H Plant 433 15737 26722 15737 15737

CAP1 433 14589 24778 14589 14589

DCT2 433 13990 24701 13990 13990

STREET LIGHT 433 13751 21940 13751 13751Bag Filter1 433 13612 22625 13612 13612

Work Shop 433 12462 19938 12462 12462

VPDB 433 11944 20944 11944 11944

Bag Filter2 433 11938 20356 11938 11938


FRACTIONATION 433 11393 17915 11393 11393

PDB 433 11078 18555 11078 11078

CCT1 433 10562 16417 10562 10562

Packing MCC 3 433 10217 15625 10217 10217

LL Fault - IEC60909 Method

Packing MCC 2 433 10161 15531 10161 10161Packing MCC 1 433 9941 15160 9941 9941

DM PLANT 433 8525 12922 8525 8525

CCT2 433 7792 11638 7792 7792

DCT 3 433 7095 10549 7095 7095

WAREHOUSE1 433 6582 9747 6582 6582

WAREHOUSE2 433 6582 9747 6582 6582

CAPACITOR PNL 433 6558 9711 6558 6558

AOP 433 5168 7607 5168 5168

ETP 433 4797 7043 4797 4797

CRUDE OIL TANK 433 4470 6344 4470 4470

ROT 433 3804 5393 3804 3804

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

PGVCL 11000 13122 34416 13122 13122

Main panel_TB 433 30153 64926 30153 30153

Main panel BB 433 30100 64219 30100 30100PCC AUX 433 19046 34266 19046 19046

ENGG OFF 433 18003 31138 18003 18003

BOILER 2 433 17936 30888 17936 17936

BOILER1 433 17936 30888 17936 17936

CAP1 433 15619 26534 15619 15619

Refinary 1 433 14347 23755 14347 14347

Coal H Plant 433 13741 23060 13741 13741

FIRE PUMP PANEL 433 13514 23188 13514 13514

Bag Filter1 433 11639 19240 11639 11639

DCT2 433 11071 18550 11071 11071STREET LIGHT 433 10969 17622 10969 10969

Work Shop 433 9958 16032 9958 9958

VPDB 433 9911 16722 9911 9911

Bag Filter2 433 9580 15876 9580 9580

PDB 433 9542 15787 9542 9542


FRACTIONATION 433 8845 14079 8845 8845

CCT1 433 8044 12708 8044 8044

Packing MCC 3 433 7584 11854 7584 7584

LG Fault - IEC60909 Method


DM PLANT 433 6227 9678 6227 6227

CCT2 433 5537 8521 5537 5537

DCT 3 433 4983 7646 4983 4983

WAREHOUSE1 433 4584 7016 4584 4584

WAREHOUSE2 433 4584 7016 4584 4584

CAPACITOR PNL 433 4566 6987 4566 4566

CRUDE OIL TANK 433 4064 5925 4064 4064

AOP 433 3546 5404 3546 3546

ROT 433 3457 5024 3457 3457

ETP 433 3272 4978 3272 3272

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

PGVCL 11000 13603 35679 13603 13603

Main panel_TB 433 30043 65157 30043 30043

Main panel BB 433 29995 64456 29995 29995PCC AUX 433 21329 39076 21329 21329

ENGG OFF 433 21068 37009 21068 21068

BOILER 2 433 20959 36622 20959 20959

BOILER1 433 20959 36622 20959 20959

Refinary 1 433 17679 29448 17679 17679

FIRE PUMP PANEL 433 17520 31428 17520 17520

Coal H Plant 433 16784 28427 16784 16784

CAP1 433 16278 27672 16278 16278

DCT2 433 15034 26229 15034 15034

STREET LIGHT 433 14446 23096 14446 14446Bag Filter1 433 14405 23922 14405 14405

Work Shop 433 13089 20981 13089 13089

VPDB 433 12845 22313 12845 12845

Bag Filter2 433 12704 21525 12704 12704


FRACTIONATION 433 11985 18901 11985 11985

PDB 433 11804 19716 11804 11804

CCT1 433 11127 17357 11127 11127

Packing MCC 3 433 10791 16576 10791 10791

LLG Fault - IEC60909 Method


DM PLANT 433 9020 13738 9020 9020

CCT2 433 8272 12418 8272 8272

DCT 3 433 7540 11268 7540 7540

WAREHOUSE1 433 7001 10423 7001 7001

WAREHOUSE2 433 7001 10423 7001 7001

CAPACITOR PNL 433 6976 10384 6976 6976

AOP 433 5507 8148 5507 5507

CRUDE OIL TANK 433 5283 7527 5283 5283

ETP 433 5117 7550 5117 5117

ROT 433 4510 6416 4510 4510

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

TG 11000 1536 4121 1536 131

TG_PNL 11000 1535 4117 1535 131

Main panel BB 433 20272 48488 20272 3089

Main panel_TB 433 20258 48103 20258 3089

ENGG OFF 433 16858 33100 16858 3010

BOILER 2 433 16814 32817 16814 3009

BOILER1 433 16814 32817 16814 3009

PCC AUX 433 16687 34145 16687 3000

Refinary 1 433 15144 27715 15144 2962

FIRE PUMP PANEL 433 14576 29005 14576 2928

Coal H Plant 433 14432 26777 14432 2933

CAP1 433 13588 25071 13588 2898

STREET LIGHT 433 13086 22504 13086 2892

DCT2 433 13078 25002 13078 2869

Bag Filter1 433 12887 23138 12887 2872

Work Shop 433 12022 20515 12022 2842

Bag Filter2 433 11527 21061 11527 2797

VPDB 433 11498 21606 11498 2790


FRACTIONATION 433 11222 18753 11222 2805

PDB 433 10850 19374 10850 2762

CCT1 433 10544 17316 10544 2771

Packing MCC 3 433 10252 16451 10252 2763

Packing MCC 2 433 10205 16359 10205 2760

Packing MCC 1 433 10019 16001 10019 2750

DM PLANT 433 8792 13878 8792 2663

CCT2 433 8143 12582 8143 2621

DCT 3 433 7471 11428 7471 2562

WAREHOUSE1 433 6983 10609 6983 2515

WAREHOUSE2 433 6983 10609 6983 2515CAPACITOR PNL 433 6960 10571 6960 2512

AOP 433 5602 8408 5602 2340

ETP 433 5228 7810 5228 2283

CRUDE OIL TANK 433 4971 7087 4971 2361

ROT 433 4262 6060 4262 2231

Short Circuit Detailed Report


SCENERIO 2 TURBO GENERATOR FEEDING

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

TG 11000 1330 3569 1330 208

TG_PNL 11000 1330 3565 1330 208

Main panel BB 433 17556 41992 17556 4627

Main panel_TB 433 17544 41658 17544 4627

ENGG OFF 433 14599 28665 14599 4421

BOILER 2 433 14561 28421 14561 4419

BOILER1 433 14561 28421 14561 4419

PCC AUX 433 14451 29570 14451 4398

Refinary 1 433 13115 24002 13115 4299

FIRE PUMP PANEL 433 12623 25119 12623 4220

Coal H Plant 433 12498 23189 12498 4227

CAP1 433 11768 21712 11768 4144STREET LIGHT 433 11333 19489 11333 4122

DCT2 433 11326 21653 11326 4077

Bag Filter1 433 11160 20038 11160 4079

Work Shop 433 10412 17766 10412 4003

Bag Filter2 433 9983 18240 9983 3907

VPDB 433 9958 18711 9958 3893


FRACTIONATION 433 9718 16240 9718 3913

PDB 433 9396 16778 9396 3825

CCT1 433 9131 14996 9131 3831Packing MCC 3 433 8879 14247 8879 3808

Packing MCC 2 433 8838 14168 8838 3802

Packing MCC 1 433 8677 13857 8677 3777

DM PLANT 433 7614 12019 7614 3582

CCT2 433 7052 10896 7052 3483

DCT 3 433 6470 9897 6470 3356

WAREHOUSE1 433 6047 9187 6047 3254

WAREHOUSE2 433 6047 9187 6047 3254

CAPACITOR PNL 433 6027 9155 6027 3249

AOP 433 4852 7282 4852 2906

ETP 433 4527 6763 4527 2799

CRUDE OIL TANK 433 4305 6138 4305 2864

ROT 433 3691 5249 3691 2617


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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

TG 11000 1536 4121 1536 333

TG_PNL 11000 1535 4115 1535 333

Main panel BB 433 25471 59523 25471 7628

Main panel_TB 433 25446 58940 25446 7627

PCC AUX 433 17262 32941 17262 6737

ENGG OFF 433 16458 30040 16458 6639

BOILER 2 433 16408 29807 16408 6634

BOILER1 433 16408 29807 16408 6634

CAP1 433 14469 25731 14469 6315

Refinary 1 433 13403 23106 13403 6134

Coal H Plant 433 12858 22450 12858 6009

FIRE PUMP PANEL 433 12637 22573 12637 5944Bag Filter1 433 11015 18811 11015 5600

DCT2 433 10495 18152 10495 5455

STREET LIGHT 433 10438 17258 10438 5483

Work Shop 433 9492 15646 9492 5220

VPDB 433 9443 16398 9443 5159

Bag Filter2 433 9153 15583 9153 5088

PDB 433 9119 15498 9119 5079


FRACTIONATION 433 8504 13845 8504 4927

CCT1 433 7766 12516 7766 4686Packing MCC 3 433 7326 11639 7326 4543

Packing MCC 2 433 7280 11560 7280 4526

Packing MCC 1 433 7100 11251 7100 4460

DM PLANT 433 6066 9565 6066 4043

CCT2 433 5414 8433 5414 3761

DCT 3 433 4876 7555 4876 3503

WAREHOUSE1 433 4494 6939 4494 3308

WAREHOUSE2 433 4494 6939 4494 3308

CAPACITOR PNL 433 4477 6911 4477 3299

CRUDE OIL TANK 433 4014 5881 4014 3113

AOP 433 3497 5368 3497 2744

ROT 433 3421 4993 3421 2758

ETP 433 3231 4947 3231 2581


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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

TG 11000 1536 4121 1536 188

TG_PNL 11000 1535 4116 1535 188

Main panel_TB 433 25125 58243 25125 4713

Main panel BB 433 25108 58718 25108 4705

PCC AUX 433 18054 35532 18054 4435

ENGG OFF 433 17724 33588 17724 4428

BOILER 2 433 17670 33305 17670 4425

BOILER1 433 17670 33305 17670 4425

Refinary 1 433 15162 27105 15162 4244

FIRE PUMP PANEL 433 14824 28312 14824 4274

CAP1 433 14691 26515 14691 4173

Coal H Plant 433 14476 26217 14476 4182DCT2 433 12938 23937 12938 4105

Bag Filter1 433 12662 22324 12662 4014

STREET LIGHT 433 12535 21291 12535 4010

Work Shop 433 11449 19330 11449 3892

VPDB 433 11327 20723 11327 3903

Bag Filter2 433 11213 20034 11213 3892

PDB 433 10601 18605 10601 3790


FRACTIONATION 433 10529 17465 10529 3786

CCT1 433 9788 15994 9788 3693Packing MCC 3 433 9406 15056 9406 3647

Packing MCC 2 433 9357 14965 9357 3641

Packing MCC 1 433 9165 14609 9165 3614

DM PLANT 433 7966 12571 7966 3424

CCT2 433 7392 11441 7392 3351

DCT 3 433 6799 10427 6799 3253

WAREHOUSE1 433 6366 9702 6366 3173

WAREHOUSE2 433 6366 9702 6366 3173

CAPACITOR PNL 433 6346 9668 6346 3169

AOP 433 5125 7723 5125 2877

CRUDE OIL TANK 433 5043 7230 5043 3057

ETP 433 4790 7185 4790 2784

ROT 433 4342 6204 4342 2832

LLG Fault - IEC60909 Method

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

DG1 433 8141 21845 8141 725

Main panel BB 433 7992 20832 7992 724

Main panel_TB 433 7991 20762 7991 724

ENGG OFF 433 7463 17428 7463 720

BOILER 2 433 7458 17352 7458 720

BOILER1 433 7458 17352 7458 720

PCC AUX 433 7410 17697 7410 719

Refinary 1 433 7156 15837 7156 717

Coal H Plant 433 6986 15524 6986 715

FIRE PUMP PANEL 433 6978 16222 6978 715

CAP1 433 6789 14938 6789 713

STREET LIGHT 433 6725 14003 6725 713

DCT2 433 6639 14904 6639 712

Bag Filter1 433 6633 14238 6633 712

Work Shop 433 6447 13209 6447 710


Bag Filter2 433 6246 13422 6246 707

FRACTIONATION 433 6238 12457 6238 708


SCENERIO 3 SINGLE DG FEEDING3P Fault - IEC60909 Method

PDB 433 6061 12722 6061 705

CCT1 433 6050 11807 6050 706

Packing MCC 3 433 5989 11396 5989 706

Packing MCC 2 433 5975 11352 5975 706

Packing MCC 1 433 5918 11177 5918 705

DM PLANT 433 5497 10095 5497 700

CCT2 433 5280 9386 5280 697

DCT 3 433 5015 8724 5015 694

WAREHOUSE1 433 4810 8236 4810 691

WAREHOUSE2 433 4810 8236 4810 691

CAPACITOR PNL 433 4800 8213 4800 691AOP 433 4147 6840 4147 679

CRUDE OIL TANK 433 3974 5942 3974 686

ETP 433 3951 6436 3951 675

ROT 433 3542 5211 3542 679

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

Bus Name Pre-Flt( V ) Ik" ip 0.5C Sym Std Sym

DG1 433 7051 18919 7051 1153

Main panel BB 433 6921 18041 6921 1149

Main panel_TB 433 6920 17981 6920 1149

ENGG OFF 433 6464 15093 6464 1137

BOILER 2 433 6459 15027 6459 1136

BOILER1 433 6459 15027 6459 1136

PCC AUX 433 6418 15326 6418 1135

Refinary 1 433 6198 13716 6198 1129

Coal H Plant 433 6050 13444 6050 1124

FIRE PUMP PANEL 433 6043 14049 6043 1123

CAP1 433 5880 12936 5880 1118STREET LIGHT 433 5824 12127 5824 1118

DCT2 433 5749 12907 5749 1113

Bag Filter1 433 5744 12330 5744 1114

Work Shop 433 5584 11439 5584 1109


Bag Filter2 433 5410 11624 5410 1101

FRACTIONATION 433 5403 10788 5403 1103

VPDB 433 5387 11807 5387 1099

PDB 433 5249 11017 5249 1095


CCT1 433 5240 10225 5240 1097Packing MCC 3 433 5187 9869 5187 1096

Packing MCC 2 433 5174 9831 5174 1096

Packing MCC 1 433 5126 9680 5126 1094

DM PLANT 433 4761 8743 4761 1079

CCT2 433 4573 8128 4573 1072

DCT 3 433 4343 7555 4343 1062

WAREHOUSE1 433 4165 7132 4165 1053

WAREHOUSE2 433 4165 7132 4165 1053

CAPACITOR PNL 433 4157 7112 4157 1053

AOP 433 3592 5923 3592 1020

CRUDE OIL TANK 433 3442 5146 3442 1036

ETP 433 3422 5574 3422 1008

ROT 433 3067 4513 3067 1012

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

DG1 433 8141 21845 8141 1844

Main panel BB 433 7851 20131 7851 1829

Main panel_TB 433 7850 20066 7850 1829

PCC AUX 433 6910 15871 6910 1775

ENGG OFF 433 6806 15180 6806 1769

BOILER 2 433 6801 15121 6801 1769

BOILER1 433 6801 15121 6801 1769

CAP1 433 6465 14005 6465 1746

Refinary 1 433 6274 13197 6274 1734

Coal H Plant 433 6144 12979 6144 1724

FIRE PUMP PANEL 433 6076 13016 6076 1718

Bag Filter1 433 5717 11678 5717 1691STREET LIGHT 433 5593 11062 5593 1683

DCT2 433 5565 11420 5565 1677

Work Shop 433 5320 10377 5320 1659

VPDB 433 5257 10701 5257 1649

Bag Filter2 433 5183 10349 5183 1643

PDB 433 5174 10311 5174 1642


FRACTIONATION 433 5015 9552 5015 1631

CCT1 433 4765 8899 4765 1607



Packing MCC 1 433 4531 8238 4531 1583

DM PLANT 433 4100 7295 4100 1532

CCT2 433 3809 6614 3809 1495

DCT 3 433 3545 6061 3545 1457

WAREHOUSE1 433 3345 5657 3345 1426

WAREHOUSE2 433 3345 5657 3345 1426

CAPACITOR PNL 433 3336 5638 3336 1425

CRUDE OIL TANK 433 3144 4924 3144 1414

ROT 433 2781 4285 2781 1348

AOP 433 2769 4566 2769 1320

ETP 433 2603 4257 2603 1284

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

Main panel BB 433 31990 83443 31990 2897

Main panel_TB 433 31973 82338 31973 2897

DG4 433 30991 77248 30991 2889

DG2 433 30878 76749 30878 2888

DG1 433 30821 76502 30821 2887

DG3 433 30765 76257 30765 2887

DG5 433 30755 76252 30760 2887

ENGG OFF 433 24307 46424 24307 2828

BOILER 2 433 24209 45869 24209 2828

BOILER1 433 24209 45869 24209 2828

PCC AUX 433 23982 48514 23982 2819

Refinary 1 433 20807 36478 20807 2787

FIRE PUMP PANEL 433 19840 38753 19840 2756

Coal H Plant 433 19509 34869 19509 2760

CAP1 433 17992 32030 17992 2730

DCT2 433 17142 31921 17142 2704

STREET LIGHT 433 17007 27964 17007 2726

Bag Filter1 433 16750 28943 16750 2707

Work Shop 433 15243 24959 15243 2681

Ba Filter2 433 14542 25764 14542 2641



SCENERIO 4 PARALLEL DG FEEDING

VPDB 433 14518 26584 14518 2634HYDROGENERATION 433 14032 22574 14032 2651

FRACTIONATION 433 13944 22403 13944 2649

PDB 433 13462 23284 13462 2610

CCT1 433 12885 20387 12885 2619

Packing MCC 3 433 12408 19204 12408 2612

Packing MCC 2 433 12337 19080 12337 2610

Packing MCC 1 433 12059 18596 12059 2601

DM PLANT 433 10309 15791 10309 2524

CCT2 433 9395 14138 9395 2487

DCT 3 433 8498 12698 8498 2435WAREHOUSE1 433 7863 11696 7863 2392

WAREHOUSE2 433 7863 11696 7863 2392

CAPACITOR PNL 433 7834 11650 7834 2390

AOP 433 6145 9077 6145 2236

ETP 433 5693 8384 5693 2185

CRUDE OIL TANK 433 5306 7532 5306 2261

ROT 433 4498 6377 4498 2145

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

Main panel BB 433 27704 72264 27704 4597

Main panel_TB 433 27689 71307 27689 4597

DG4 433 26839 66899 26839 4573DG2 433 26741 66467 26741 4571

DG1 433 26692 66253 26692 4569

DG3 433 26643 66041 26643 4568

DG5 433 26633 66031 26633 4568

ENGG OFF 433 21050 40204 21050 4398

BOILER 2 433 20966 39724 20966 4396

BOILER1 433 20966 39724 20966 4396

PCC AUX 433 20769 42015 20769 4374

Refinary 1 433 18019 31591 18019 4279

FIRE PUMP PANEL 433 17182 33561 17182 4200Coal H Plant 433 16895 30198 16895 4208

CAP1 433 15582 27739 15582 4126

DCT2 433 14846 27645 14846 4059

STREET LIGHT 433 14729 24218 14729 4107

Bag Filter1 433 14506 25065 14506 4062

Work Shop 433 13201 21615 13201 3990

Bag Filter2 433 12594 22313 12594 3892

VPDB 433 12573 23022 12573 3878



FRACTIONATION 433 12076 19401 12076 3902PDB 433 11658 20165 11658 3812

CCT1 433 11159 17655 11159 3821

Packing MCC 3 433 10745 16631 10745 3800

Packing MCC 2 433 10684 16524 10684 3793

Packing MCC 1 433 10443 16104 10443 3769

DM PLANT 433 8927 13675 8927 3576

CCT2 433 8137 12244 8137 3480

DCT 3 433 7359 10997 7359 3354

WAREHOUSE1 433 6809 10129 6809 3253

WAREHOUSE2 433 6809 10129 6809 3253

CAPACITOR PNL 433 6784 10089 6784 3248

AOP 433 5321 7861 5321 2907

ETP 433 4930 7260 4930 2801

CRUDE OIL TANK 433 4595 6523 4595 2871

ROT 433 3895 5523 3895 2625

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

Main panel BB 433 31449 80740 31449 7318

Main panel_TB 433 31430 79700 31430 7317

DG4 433 29656 71713 29656 7220DG5 433 29556 71703 29646 7220

DG2 433 29455 70923 29455 7208

DG1 433 29356 70536 29356 7202

DG3 433 29258 70154 29258 7197

PCC AUX 433 19956 38631 19956 6506

ENGG OFF 433 18901 34703 18901 6417

BOILER 2 433 18836 34392 18836 6413

BOILER1 433 18836 34392 18836 6413

CAP1 433 16326 29077 16326 6118

Refinary 1 433 14982 25769 14982 5951Coal H Plant 433 14305 24955 14305 5833

FIRE PUMP PANEL 433 14031 25108 14031 5770

Bag Filter1 433 12058 20539 12058 5451

DCT2 433 11439 19756 11439 5313

STREET LIGHT 433 11367 18702 11367 5343

Work Shop 433 10254 16824 10254 5095

VPDB 433 10200 17696 10200 5032

Bag Filter2 433 9863 16751 9863 4967

PDB 433 9823 16652 9823 4958

LGFault - IEC60909 Method

HYDROGENERATION 433 9181 14889 9181 4836FRACTIONATION 433 9109 14759 9109 4818

CCT1 433 8266 13259 8266 4590

Packing MCC 3 433 7767 12279 7767 4454

Packing MCC 2 433 7715 12191 7715 4438

Packing MCC 1 433 7513 11848 7513 4375

DM PLANT 433 6365 9994 6365 3975

CCT2 433 5649 8764 5649 3704

DCT 3 433 5066 7820 5066 3455

WAREHOUSE1 433 4654 7162 4654 3266

WAREHOUSE2 433 4654 7162 4654 3266

CAPACITOR PNL 433 4636 7132 4636 3257

CRUDE OIL TANK 433 4134 6041 4134 3083

AOP 433 3593 5501 3593 2717

ROT 433 3508 5108 3508 2736

ETP 433 3312 5059 3312 2558

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Bus Name Pre Fault

Voltage

Initial

Symmetrical

SCCurrent

Peak Short

Circuit

Current

0.5 Cycle

Symmetrical

SC Current

Std

Symmetrical

SC Current

Main panel BB 433 32020 82885 32020 4189

Main panel_TB 433 31998 81792 31998 4189

DG4 433 30906 75986 30906 4203DG5 433 30900 75980 30900 4203

DG2 433 30778 75413 30778 4204

DG1 433 30714 75131 30714 4205

DG3 433 30649 74852 30649 4205

PCC AUX 433 23057 45955 23057 4092

ENGG OFF 433 22954 43334 22954 4108

BOILER 2 433 22841 42808 22841 4102

BOILER1 433 22841 42808 22841 4102

Refinary 1 433 19177 33459 19177 3981

FIRE PUMP PANEL 433 18801 35911 18801 4048Coal H Plant 433 18084 32119 18084 3932

CAP1 433 17287 30780 17287 3795

DCT2 433 16032 29341 16032 3917

Bag Filter1 433 15397 26509 15397 3795

STREET LIGHT 433 15341 25228 15341 3806

Work Shop 433 13774 22563 13774 3712

VPDB 433 13570 24518 13570 3724

Bag Filter2 433 13451 23599 13451 3719


LLGFault - IEC60909 Method

FRACTIONATION 433 12617 20305 12617 3661PDB 433 12451 21425 12451 3603

CCT1 433 11683 18533 11683 3610

Packing MCC 3 433 11294 17548 11294 3618

Packing MCC 2 433 11231 17438 11231 3613

Packing MCC 1 433 10984 17006 10984 3596

DM PLANT 433 9402 14465 9402 3438

CCT2 433 8603 13009 8603 3377

DCT 3 433 7796 11709 7796 3275

WAREHOUSE1 433 7223 10799 7223 3191

WAREHOUSE2 433 7223 10799 7223 3191

CAPACITOR PNL 433 7197 10758 7197 3187

AOP 433 5656 8399 5656 2886

CRUDE OIL TANK 433 5423 7730 5423 3063

ETP 433 5246 7765 5246 2792

ROT 433 4613 6563 4613 2836

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Transformer capacity PT 1250 kVA

Primary Voltage Vp 11 kV

Secondary Voltage Vs 0.433 kV

Transformer HV side CT details CTHV 100/5

Turns Ratio CTR1 20

Transformer LV ACB rating 2500

Turns Ratio 2500

Percentage Impedance of Transformer Z 5.00%

Fault Current at 11 kV Bus as per report 13122 A

Fault current at 0.433 kV Bus as per report 29328 A

Transformer HV side Primary Current Ipfl 65.68 Amps

Transformer LV side current as per name plate 1666.00

Transformer HV side Primary current with 10 % Over load 72.25 Amps

Transformer HV side CT Secondary Full Load Current Isfl 3.28

Transformer HV side CT Secondary current with 10 % Over load 3.61

IDMT setting at 11 kV side 4.25 Amps

85.00 %

Setting proposed Ip 4.25 A

Transformer Full Load LV side Primary Current Isfl 1250 X 1000 )/ (1.732 Amps

1666.76 Amps

Transformer LV side Primary current with 10 % Over load 1833.44 Amps

Transformer LV side CT Secondary current with 10 % Over load 0.73

Setting Calculation for Power Transformers 1250 kVA

0.433kV11kVIn:2500A

CTHV:100/5

1.25 MVA

IDMT setting at0.433 V si e 0.73

Setting proposed Ip 0.7

Curve Extreme Inverse

Fault current at0.433kV Bus as per report,for MINIMUM SOURCE Fault 29328.00 Amps

HV side current due to fault at 0.433 kV bus 1154.46 Amps

HV side CT Secondary current due to fault at0.433kV bus 57.72 Amps

HV side CT current due to fault at Transformer HV side 656.10 Amps

Setting proposed on HV side relay I>> 45.00 Amps

900.00 %

Setting proposed on LV side relay I>> 6 xIn

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Transformer capacity PT 2000 kVA

Primary Voltage Vp 11 kV

Secondary Voltage Vs 0.433 kV

Transformer HV side CT details CTHV 125/1

Turns Ratio CTR1 125

Transformer LV side CT details CTLV 3000/5

Turns Ratio CTR1 600

Transformer LV side ACB rating 4000

Percentage Impedance of Transformer Z 6.78%

Fault Current at 11 kV Bus as per report 1535 A

Fault current at 0.433 kV Bus 20272 A

Transformer HV side current as per name plate Ipfl 105.00

Transformer LV side current as per name plate 2666.80

Transformer HV side Primary current with 10 % Over load 115.50 Amps

Transformer HV side CT Secondary Full Load Current Isfl 0.84

Transformer HV side CT Secondary current with 10 % Over load 0.92

IDMT setting at 11 kV side 115.47/125

0.92

Setting proposed Ip 0.95

Transformer Full Load LV side Primary Current Isfl 2666.82 Amps

Transformer LV side Primary current with 10 % Over load 2933.51 Amps

Transformer LV side CT Secondary Full Load Current 4.44

Transformer LV side CT Secondary current with 10 % Over load 4.89

Setting Calculation for 2.0 MVA Transformers

0.433kV11kVCTLV:3000/5CTHV:125/1

2.0 MVA

IDMT setting at 0.433kV side at 100 % load 2666/3000

0.89

IDMT setting at 0.433kV side at 110 % load 0.98

Setting proposed Ip 1 xIn

Curve Extreme Inverse

Fault current at0.433kV Bus as per report,for MINIMUM SOURCE Fault 20272.00 Amps

HV side current due to fault at 0.433 kV bus 797.98 Amps

HV side CT Secondary current due to fault at0.433kV bus 6.38 Amps

HV side CT current due to fault at Transformer HV side 12.28 Amps

Setting proposed on HV side relay I>> 8.00 Amps

Setting proposed on LV side relay I>> 3 Amps

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Relay type: ABB MAKE NI 41 RELAY POINTS:VCB_IC

Address Setting Title Setting Range Setting

Fault Records Enabled/Disabled Enabled

Function 50/51

Function 50N/51N

Other functions are disabled

Title Setting Range Setting

CTs Main Protection CT

CT rated primary 10..50000 A 100A

CT rated secondary 1 A / 5 A 5A

Setting name Units Range Setting

FCT 50/51 ON/OFF ON50-2 Pickup I>> 0.1..35.00 A 9

50-2 Delay T I>> 0.00..60.00 s 0.55

51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 1

IEC Curve Normal Inverse

,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E

Inverse

Setting Details for 11kV Switch Gear1.1 INCOMER 1 FROM MAINS

SCOPE OF FUNCTION

Power System Data 1

Phase over current Protection: 50/51


FCT 50N / 51 N ON/OFF ON

50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.55

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 1


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

Ground over current Protection: 50N/51 N

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Relay type:AREVA P343 RELAY POINTS:RP1_HT



Function 50/51

Function 50N/51N








50-2 Delay T I>> 0.00..60.00 s 0.7

51 pickup Ip 0.25..20.00 0.7

51 time dial Tp 0.05..1.0 s, oo 0.55


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

Setting Details for 11kV Switch Gear 3 PANEL BOARD2.1 INCOMING FROM TURBO ALTERNATOR

SCOPE OF FUNCTION

Power System Data 1




50N-2 Pickup I>> 0.05..35.00 A 0.7

50N-2 Delay T I>> 0.00..60.00 s 0.7

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse


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Relay type:SEGC IRI1-3I-E0-1-1-HD RELAY POINTS:RP2_HT



Function 50/51

Function 50N/51NOther functions are disabled






FCT 50/51 ON/OFF ON

50-2 Pickup I>> 0.1..35.00 A 850-2 Delay T I>> 0.00..60.00 s 0.55

51 pickup Ip 0.25..20.00 0.95

51 time dial Tp 0.05..1.0 s, oo 1


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

2.2 OUTGOING 1 TO TRANSFORMER 1

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.55

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Relay type:SEGC IRI1-3I-E0-1-1-HD RELAY POINTS:RP3_HT



Function 50/51

Function 50N/51N








50-2 Delay T I>> 0.00..60.00 s 0.55

51 pickup Ip 0.25..20.00 0.95

51 time dial Tp 0.05..1.0 s, oo 1


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

Setting Details for 11kV Switch Gear 3 PANEL BOARD2.3 OUTGOING 2 TO TRANSFORMER 2

SCOPE OF FUNCTION

Power System Data 1




50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.55

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse


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Relay type:SEGC IRI1-3I-E0-1-1-HD RELAY POINTS:RP1



Function 50/51

Function 50N/51N




CT rated primary 10..50000 A 3000 A




50-2 Delay T I>> 0.00..60.00 s 0.4

51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

Setting Details for 0.433kV RELAYS IN PCC3.1 INCOMING FROM TRANSFORMER 1

SCOPE OF FUNCTION

Power System Data 1




50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse


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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

3.2 INCOMING FROM TRANSFORMER 2

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.7


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

3.3 INCOMING FROM DG1

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

SCOPE OF FUNCTION

Power System Data 1






50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

Power System Data 1




SCOPE OF FUNCTION



50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse




SCOPE OF FUNCTION

Power System Data 1



50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.85

51 time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse



SCOPE OF FUNCTION

Power System Data 1




50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.4

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.6


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.5

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

3.8 OUTGOING TO AUXILIARY PCC

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.9

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

3.9 OUTGOING TO REFINARY

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 0.5

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

SCOPE OF FUNCTION

Power System Data 1



3.10 OUTGOING TO DM PLANT



50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

Power System Data 1



3.11 OUTGOING TO BOILER 1

SCOPE OF FUNCTION



50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse



3.12 OUTGOING TO BOILER 2

SCOPE OF FUNCTION

Power System Data 1



50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse


3.13 OUTGOING TO CCT2

SCOPE OF FUNCTION

Power System Data 1




50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

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Function 50/51







FCT 50/51 ON/OFF ON


51 pickup Ip 0.25..20.00 1

51 time dial Tp 0.05..1.0 s, oo 1.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

EXTREM

E Inverse

3.14 OUTGOING TO DCT2

SCOPE OF FUNCTION

Power System Data 1





50N-2 Pickup I>> 0.05..35.00 A 1

50N-2 Delay T I>> 0.00..60.00 s 0.25

51N pickup Ip 0.25..20.00 0.1

51N time dial Tp 0.05..1.0 s, oo 0.5


,Very Inverse

,Extremely Inverse

,Long Inverse

IEC

Normal

Inverse

50

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11000 Volt Phase Time-Current Characteristic Curves

0 - Path:PGVCL-11kV Panel-Transformer3-MP_IC_26F

03-05-2012

10:56:51

C:\Users\ramesh.cuppu\Documents\PALADIN_PROJECTS\EXELELE240212.PDC

.01

.1

1

10

100

1

000

10000

Time

inSeconds

.5 1 10 100 1000 10000

Current in Amperes X 10

A Transformer 3 1250.0 KVA

Transformer

INRUSH

PGVCL

MP_IC_26F

51

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6 - REFINARY

03-05-2012

17:53:17


.01

.1

1

10

100

1

000

10000

Time

inSeconds

.5 1 10 100 1000 10000


R_P1_1F

R_P2_HT

R_P1_HT

REF_IC

R_P4

52

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7 - BOILER 1

03-05-2012

18:06:57


.01

.1

1

10

100

1

000

10000

Time

inSeconds

.5 1 10 100 1000 10000


BOILER1_IC

R_P1_1F

R_P2_HT

R_P1_HT

A

Transformer 1 2000.0 KVA

Transformer

INRUSH

R_P10

53

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Bus Name Bus kV 3P Bolted

Fault (kA)

Branch

Current

(kAmp)

3P Arcing

Current

(kA)

Trip

Delay

Time

(sec)

3P Fault

Duratio

n (sec)

3P Arc Flash

Boundary

(cm)

Working

Distance

(cm)

3P Energy

(cal/cm^2)

Required IEEE

1584 PPE Class

AOP 0.433 6.00 6.00 3.400 0.033 0.033 18.9 61.000000 0.21 0

Bag Filter1 0.433 15.97 15.97 8.555 0.030 0.030 35.3 61.000642 0.53 0

Bag Filter2 0.433 13.98 13.98 7.685 0.030 0.030 32.6 61.000642 0.47 0

BOILER 2 0.433 22.82 22.82 11.411 0.030 0.030 43.1 61.000642 0.72 0

BOILER1 0.433 22.82 22.82 11.411 0.030 0.030 43.1 61.000642 0.72 0CAPACITOR PNL 0.433 7.62 7.62 4.004 15.178 15.178 1384.7 61.000642 118.74 Extreme Danger

CCT1 0.433 12.33 12.33 5.905 2.709 2.709 571.6 61.000642 32.26 4

CCT2 0.433 9.07 9.07 5.420 0.030 0.030 25.2 61.000642 0.33 0

Coal H Plant 0.433 18.51 18.51 9.638 0.015 0.015 24.1 61.000642 0.30 0

CRUDE OIL TANK 0.433 5.18 5.18 2.932 3.483 3.483 405.5 61.000642 19.45 3

DCT 3 0.433 8.25 8.25 4.269 0.030 0.030 21.2 61.000642 0.25 0

DCT2 0.433 16.43 16.43 8.754 0.030 0.030 35.9 61.000642 0.55 0

DM PLANT 0.433 9.93 9.93 4.957 0.346 0.346 124.2 61.000642 3.40 1

ENGG OFF 0.433 22.92 22.92 11.454 0.022 0.022 35.5 61.000642 0.54 0

ETP 0.433 5.56 5.56 3.107 2.774 2.774 362.6 61.000642 16.50 3

FIRE PUMP PANEL 0.433 18.96 18.96 9.828 0.015 0.015 24.4 61.000642 0.31 0

FRACTIONATION 0.433 13.32 13.32 7.392 0.015 0.015 19.8 61.000642 0.23 0

HYDROGENERATION 0.433 13.40 13.40 6.314 2.094 2.094 504.0 61.000642 26.80 4

Main panel BB 0.433 30.66 30.66 14.483 0.030 0.030 51.9 61.000642 0.94 0

Main panel_TB 0.433 30.71 30.71 12.328 2.389 2.389 900.9 61.000642 97.08 Extreme DangerPacking MCC 1 0.433 11.60 11.60 6.610 0.015 0.015 18.2 61.000642 0.20 0

Packing MCC 2 0.433 11.86 11.86 6.730 0.015 0.015 18.5 61.000642 0.21 0

Packing MCC 3 0.433 11.92 11.92 6.760 0.015 0.015 18.5 61.000642 0.21 0

PCC AUX 0.433 22.77 22.77 9.683 0.013 0.013 21.6 61.000642 0.26 0

PDB 0.433 12.96 12.96 7.229 0.010 0.010 14.8 61.000642 0.15 0

Refinary 1 0.433 19.63 19.63 10.106 0.030 0.030 39.9 61.000642 0.64 0

ROT 0.433 4.40 4.40 2.573 5.816 5.816 521.9 61.000642 28.20 4

STREET LIGHT 0.433 16.12 16.12 8.622 0.023 0.023 29.4 61.000642 0.41 0

TG_PNL 11.000 0.70 17.70 0.708 0.030 0.030 1.5 91.000579 0.02 0

WAREHOUSE1 0.433 7.65 7.65 4.725 0.015 0.015 14.3 61.000642 0.14 0

WAREHOUSE2 0.433 7.65 7.65 4.016 0.030 0.030 20.3 61.000642 0.24 0

Work Shop 0.433 14.59 14.59 7.955 0.015 0.015 20.9 61.000642 0.25 0

Clothing Required

4.5 - 14.0 oz/yd^2 untreated cotton

FR shirt and pants, plus flash suit hood

Cotton underclothing plus FR shirt and pants

Cotton underclothing plus FR shirt, pants, overalls or equivalent

Cotton underclothing plus FR shirt, pants, plus double layer switching coat and pants or equiv.

Level exceeds 40 cal/cm^2 - Never work on or near energized system

SUMMARY REPORT OF ARCFLASH STUDY

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Volts Max Short Circuit kA

Bus Electrical Shock and Arc Flash Hazard

6.0433.0

Equipment Name: AOPProject: EXELELE050312

Shock Distances (cm) - Limited = 304.8, Restricted = 30.5, Prohibited = 2.5

Clothing

Level0

Glove

Class00

PPE Based on 61 cm Working Distance

(Arc Flash boundary, PPE required within 18.9 cm)

Arc Flash boundary at energy < 1.2 cal/cm^2

WARNING0

FaceShield

Eye

Protection Insulated

Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

56

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16.0433.0

Equipment Name: Bag Filter1Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

57

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14.0433.0

Equipment Name: Bag Filter2Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

58

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22.8433.0

Equipment Name: BOILER 2Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

59

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22.8433.0

Equipment Name: BOILER1Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

60

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7.6433.0

Equipment Name: CAPACITOR PNLProject: EXELELE050312


Clothing

LevelDanger

Glove

Class00




WARNING!

SuitHood Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

61

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12.3433.0

Equipment Name: CCT1Project: EXELELE050312


Clothing

Level4

Glove

Class00




WARNING4

SuitHood Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

62

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9.1433.0

Equipment Name: CCT2Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

63

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18.5433.0

Equipment Name: Coal H PlantProject: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

64

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5.2433.0

Equipment Name: CRUDE OIL TANKProject: EXELELE050312


Clothing

Level3

Glove

Class00




WARNING3

SuitHood Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

65

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8.2433.0

Equipment Name: DCT 3Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

66

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16.4433.0

Equipment Name: DCT2Project: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

67

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9.9433.0

Equipment Name: DM PLANTProject: EXELELE050312


Clothing

Level1

Glove

Class00




WARNING1

FaceShield Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

68

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22.9433.0

Equipment Name: ENGG OFFProject: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

69

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5.6433.0

Equipment Name: ETPProject: EXELELE050312


Clothing

Level3

Glove

Class00




WARNING3

SuitHood Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

70

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19.0433.0

Equipment Name: FIRE PUMP PANELProject: EXELELE050312


Clothing

Level0

Glove

Class00




WARNING0

FaceShield

Eye


Tools

Required

Not Allowed X

Non-melting FR

Hair/Beard Nets

!

71

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13.3433.0

Equipment Name: FRACTIONATIONProject: EXELELE050312


Clothing

Level0

Glove

Class00



Arc Flash boundary a