Electrical Engineering Training

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The Oil & Gas Engineering Guide

Audiobook

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Electrical consumers list & power balance

Continuous

(C)

Intermittent

(I)

Spare

(S)

kW kW kW kW

LP003-1 Fire Fighting pump Bldg Light&Small Pwr C 20 20

HSV-0011 Valve for gas metering station I 2 2

HSV-0012 Valve for gas metering station I 2 2

PM-032A Fire Fighting Jockey Pump C 10 10

PM-032B Fire Fighting Jockey Pump S 10 10

TOTAL 30 4 10

(1) Duty Type: "C" Continuous; "I" Intermittent; "S" Spare

Peak Load ( 1*C + 0.6*I + 0.1*S ) kW

CONSUMED

LOAD

33.4

CONSUMED LOAD

Equipment

No.Description

Du

ty T

yp

e (

1)

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Electrical consumers list & power balance

Continuous

(C)

Intermittent

(I)

Spare

(S)

kW kW kW kW

LP003-1 Fire Fighting pump Bldg Light&Small Pwr C 20 20

HSV-0011 Valve for gas metering station I 2 2

HSV-0012 Valve for gas metering station I 2 2

PM-032A Fire Fighting Jockey Pump C 10 10

PM-032B Fire Fighting Jockey Pump S 10 10

TOTAL 30 4 10

(1) Duty Type: "C" Continuous; "I" Intermittent; "S" Spare

Peak Load ( 1*C + 0.6*I + 0.1*S ) kW

CONSUMED

LOAD

33.4

CONSUMED LOAD

Equipment

No.Description

Du

ty T

yp

e (

1)

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Electrical power balance

1 2 3 4 5 6

4 + 2 Compressors = 4 running + 1 spare + 1 in long term maintenance

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Electrical power balance

1 2 3 4 5 6

Plant power consumption: 4MW 3* 4MW Power Generator = 2@50% + 1 spare

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General one line diagram

LV

MV

MV/LV

40 kW= 400 V * 100 Amps = 10 kV * 4 Amps

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Electrical distribution

LV

MV

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MV Switchgear

Transformers

Electrical One Line Diagram

LV switchgears = Motor Control Centers (MCC)

Power generators

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Electrical calculations

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Equipment data sheet

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Switchboard single line diagram

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Switchboard typical diagrams

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Normal/Essential power consumers

Continuous

(C)

Intermittent

(I)

Spare

(S)

kW kW kW kW

LP003-1 Fire Fighting pump Bldg Light&Small Pwr C 20 20

HSV-0011 Valve for gas metering station I 2 2

HSV-0012 Valve for gas metering station I 2 2

PM-032A Fire Fighting Jockey Pump C 10 10

PM-032B Fire Fighting Jockey Pump S 10 10

TOTAL 30 4 10

CONSUMED LOAD

Equipment

No.Description

Du

ty T

yp

e (

1)

CONSUMED

LOAD

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Normal/Essential consumers

Continuous

(C)

Intermittent

(I)

Spare

(S)

kW kW kW kW

LP003-1 Fire Fighting pump Bldg Light&Small Pwr X C 20 20

HSV-0011 Valve for gas metering station X I 2 2

HSV-0012 Valve for gas metering station X I 2 2

PM-032A Fire Fighting Jockey Pump X C 10 10

PM-032B Fire Fighting Jockey Pump X S 10 10

TOTAL 30 4 10

CONSUMED LOAD

Equipment

No.Description

Essen

tial

No

rmal

Du

ty T

yp

e (

1)

CONSUMED

LOAD

Continuous

(C)

Intermittent

(I)

Spare

(S)

kW kW kW kW

LP003-1 Fire Fighting pump Bldg Light&Small Pwr C 20 20

HSV-0011 Valve for gas metering station I 2 2

HSV-0012 Valve for gas metering station I 2 2

PM-032A Fire Fighting Jockey Pump C 10 10

PM-032B Fire Fighting Jockey Pump S 10 10

TOTAL 30 4 10

CONSUMED LOAD

Equipment

No.Description

Du

ty T

yp

e (

1)

CONSUMED

LOAD

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Electrical Control System

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Electrical Equipment layout drawing

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Electrical Main Cable routing

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Cable schedule & routing drawings

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Typical installation drawings

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Trouble shooting diagrams

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Electrical Calculations

Main calculations done on a project are : • Load flow analysis • Short circuit analysis • Cable sections • Motor starting impact • Transient phenomena (Loss of a generator for example) • Protection coordination • Harmonic analysis

8 8 0 0

8 9 0 0

9 0 0 0

9 1 0 0

9 2 0 0

9 3 0 0

9 4 0 0

9 5 0 0

9 6 0 0

9 7 0 0

9 8 0 0

9 9 0 0

1 0 0 0 0

0 . 0 2 . 5 5 . 0 7 . 5 1 0 . 0 1 2 . 5 1 5 . 0 1 7 . 5 2 0 . 0

V O L T A G E O F M S - 0 0 1 ( S T U D Y 1 )

Bu

s V

olt

ag

e (

Vo

lts

)

T im e ( S e c o n d s )

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Selectivity

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Electrical Engineering in a nutshell

List & preliminary calcs • Electrical consumers list • Power balance

Installation drawings • Cable routing & schedule • Typical wiring diagrams • Standard drawings: power,

grounding, lighting etc. • Substation layouts • Trouble shooting diagrams

Calculations • Protection settings

EQUIPMENT SPECIFICATIONS

Diagrams • Single line diagram Calculations • Load flow analysis • Short circuit Specifications & data sheets • Generators, Transformers,

switchgears

INSTALLATION DRAWINGS

DESIGN BASES

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The Oil & Gas Engineering Guide

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