Utilizing IED Capability to Reduce Wiring Terrence Smith, GE Digital Energy Multilin Richard Hunt, GE Digital Energy Multilin Jakov Vico, GE Digital Energy.

Utilizing IED Capability to Reduce Wiring

Terrence Smith, GE Digital Energy MultilinRichard Hunt, GE Digital Energy Multilin

Jakov Vico, GE Digital Energy Multilin

Introduction

Reducing Wiring is not a new concept

IntroductionReview of the Design/Installation Process

A case study of a medium voltage breaker

A case study of a transmission breaker

A case study of a control IED as a transformer alarm aggregator

IntroductionA case study of a high voltage circuit breaker using process bus.

A look at the direction the industry will likely head.

Rules we can develop from the case studies.

Introduction-How the design is communicated

Typical Schematic Diagram

Terminal Block. Point on a Schematic Diagram

Introduction-How the design is communicated

Typical Wiring Diagram

Introduction-How the design is communicated

The design process

Engineer Prepares/Recieves Work Scope

Single LineDiagram

Three LineDiagram

Elementary Diagrams

Wiring Diagrams

Cable Schedules

Engineer IssuesCompleted Package

Bill of Materials

Engineer PreparesElementaryDiagrams

Drafter Creates/Modifies Drawing

Engineer ChecksDrafters work

HasErrors

Error Free

Handoffs

Introduction-How the design is communicated

The design process

Drawing NameNumber of Drawings

Engineer Hours

Draft Hours

Check Hours

Extended Engineer Hours

Extended Draft Hours

Extended Check Hours

Single Line Diagram 1 8 8 4 8 8 4Three Line Diagram 1 8 8 4 8 8 4Schematics 6 12 16 4 72 96 24Panel Wiring 5 16 20 8 80 100 40Breaker Wiring 5 8 8 4 40 40 20

Total 208 252 92

Case Study One- Medium Voltage Switchgear

Case Study One- Medium Voltage Switchgear

Replace with IED Pushbutton

Case Study One- Medium Voltage Switchgear

Replace with Latching Elements and IED Communications

Case Study One- Medium Voltage Switchgear

Replace IED to SCADA communications

Case Study One- Medium Voltage Switchgear

Case Study One- Medium Voltage Switchgear

Replaces Control Switch

Case Study One- Medium Voltage Switchgear

Replaces SCADA Trip Contact

Case Study One- Medium Voltage Switchgear

Replaces Lockout Relays

Case Study One- Medium Voltage Switchgear

The new circuit is much simpler

Case Study One- Medium Voltage Switchgear

The real value of internal lockout relays is seen in the close circuit

Case Study One- Medium Voltage Switchgear

On

Latch 1

Off

Set

Reset

TRIPBUS 1 OP

CONTROL PUSHBUTTON 3 ON

86A (VO1)

CONTROL PUSHBUTTON 2 ON

Remote Close On (VI2)

OROROR

20

ANDANDAND

2122

Close BRKR (VO2)

Auto Close On (VO7)

On

Latch 2

Off

Set

Reset

On

Latch 3

Off

Set

Reset

86TA Tripped On (RI1)R

86T Reset On (RI4)R

86TA (VO3)

86BF (VO4)BKR FAIL 1 TRIP OP

PUSHBUTTON 4 ON

86T Tripped On (RI3)R

86T Reset On (RI4)R

86Tie (VO5)On

Latch 4

Off

Set

Reset

86U Tripped On (RI5)R

86U Reset On (RI6)R

86U (VO6)On

Latch 5

Off

Set

Reset

I on

Cont Op 2 (H2)

I off

V offV on

Operate

Seal-In

23

24

25

26

Cont Ip 1 On(H5a)

SYNC 1 CLS OP

Case Study One- Medium Voltage Switchgear

On

Latch 1

Off

Set

Reset

TRIPBUS 1 OP

CONTROL PUSHBUTTON 3 ON

86A (VO1)

CONTROL PUSHBUTTON 2 ON

Remote Close On (VI2)

OROROR

20

ANDANDAND

2122

Close BRKR (VO2)

Auto Close On (VO7)

On

Latch 2

Off

Set

Reset

On

Latch 3

Off

Set

Reset

86TA Tripped On (RI1)R

86T Reset On (RI4)R

86TA (VO3)

86BF (VO4)BKR FAIL 1 TRIP OP

PUSHBUTTON 4 ON

86T Tripped On (RI3)R

86T Reset On (RI4)R

86Tie (VO5)On

Latch 4

Off

Set

Reset

86U Tripped On (RI5)R

86U Reset On (RI6)R

86U (VO6)On

Latch 5

Off

Set

Reset

I on

Cont Op 2 (H2)

I off

V offV on

Operate

Seal-In

23

24

25

26

Cont Ip 1 On(H5a)

SYNC 1 CLS OP

Close Operands

Case Study One- Medium Voltage Switchgear

On

Latch 1

Off

Set

Reset

TRIPBUS 1 OP

CONTROL PUSHBUTTON 3 ON

86A (VO1)

CONTROL PUSHBUTTON 2 ON

Remote Close On (VI2)

OROROR

20

ANDANDAND

2122

Close BRKR (VO2)

Auto Close On (VO7)

On

Latch 2

Off

Set

Reset

On

Latch 3

Off

Set

Reset

86TA Tripped On (RI1)R

86T Reset On (RI4)R

86TA (VO3)

86BF (VO4)BKR FAIL 1 TRIP OP

PUSHBUTTON 4 ON

86T Tripped On (RI3)R

86T Reset On (RI4)R

86Tie (VO5)On

Latch 4

Off

Set

Reset

86U Tripped On (RI5)R

86U Reset On (RI6)R

86U (VO6)On

Latch 5

Off

Set

Reset

I on

Cont Op 2 (H2)

I off

V offV on

Operate

Seal-In

23

24

25

26

Cont Ip 1 On(H5a)

SYNC 1 CLS OP

Close Operands

Block Close Logic

Case Study One- Medium Voltage Switchgear

Optimization Benefits1. Simpler Circuits meaning reduced design time, reduced wiring time, and reduced commissioning time.

2. Bench tested logic replaces wiring which reduces commissioning time.

3. Logic is repeatable and consistent.

Case Study One- Medium Voltage Switchgear

Optimization Challenges

1. Cost of communications equipment, design, and installation

2. Operational challenges associated with process change.

Case Study Two – Breaker and a Half Scheme

52-1

52-2

CT1

CT2

CT3

CT4

CT1

CT2

CT3

CT4

IED-1 IED-2

To Adjacent Zone

To Adjacent Zone

52

3Y3Y3Y3Y

o Breaker Trip (2)o Breaker Close

o Breaker status points (-a, -b)o Gas pressure alarmo Spring alarmo Maintenance alarmo Trip coil monitoro Close coil monitor

CB 1

3 phase currents

3Y

Case Study Two – Breaker and a Half Scheme

Wired Process

Input/Output Process Destination

Wires Req. to Hardw ire Alarms and Control

CT 1 IED 1, SCADA, DFR 4

CT 2 IED 2, SCADA, DFR 4

CT 3 Adjacent Zone IED 1, SCADA, DFR 4

CT 4 Adjacent Zone IED 1, SCADA, DFR 4

DC1 NA Breaker TR/CL supply 1 2

DC2 NA Breaker TR/CL supply 2 2

AC1 NA Breaker AC supply 4

Trip From IED 1, IED 2, SCADA, to DFR 6

Close From IED 1, IED 2, SCADA, to DFR 6

Breaker 52a To IED1, IED 2, SCADA 6

Breaker 52b To IED1, IED 2, SCADA 6Breaker Gas Alarm To SCADA 2

Spring Alarm To SCADA 2

Breaker Maintenance To IED1, IED 2,SCADA 6Trip Coil Monitor SCADA 2Close Coil Monitor SCADA 2

Total Wires 62Total Terminations 124

Case Study Two – Breaker and a Half Scheme

Wired Process

Input/Output Process Destination

Wires Req. to Hardw ire Alarms and Control

CT 1 IED 1, SCADA, DFR 4

CT 2 IED 2, SCADA, DFR 4

CT 3 Adjacent Zone IED 1, SCADA, DFR 4

CT 4 Adjacent Zone IED 1, SCADA, DFR 4

DC1 NA Breaker TR/CL supply 1 2

DC2 NA Breaker TR/CL supply 2 2

AC1 NA Breaker AC supply 4

Trip From IED 1, IED 2, SCADA, to DFR 6

Close From IED 1, IED 2, SCADA, to DFR 6

Breaker 52a To IED1, IED 2, SCADA 6

Breaker 52b To IED1, IED 2, SCADA 6Breaker Gas Alarm To SCADA 2

Spring Alarm To SCADA 2

Breaker Maintenance To IED1, IED 2,SCADA 6Trip Coil Monitor SCADA 2Close Coil Monitor SCADA 2

Total Wires 62Total Terminations 124

62 wires and 124 terminations for one breaker of this scheme.

Case Study Two – Breaker and a Half Scheme

Wired Process

Input/Output Process Destination

Wires Req. to Hardw ire Alarms and Control

Wires Req. for SCADA Comm.

CT 1 IED 1, SCADA, DFR 4 4

CT 2 IED 2, SCADA, DFR 4 4

CT 3 Adjacent Zone IED 1, SCADA, DFR 4 4

CT 4 Adjacent Zone IED 1, SCADA, DFR 4 4

DC1 NA Breaker TR/CL supply 1 2 2

DC2 NA Breaker TR/CL supply 2 2 2

AC1 NA Breaker AC supply 4 2

Trip From IED 1, IED 2, SCADA, to DFR 6 4

Close From IED 1, IED 2, SCADA, to DFR 6 4

Breaker 52a To IED1, IED 2, SCADA 6 4

Breaker 52b To IED1, IED 2, SCADA 6 4Breaker Gas Alarm To SCADA 2 2

Spring Alarm To SCADA 2 2

Breaker Maintenance To IED1, IED 2,SCADA 6 2Trip Coil Monitor SCADA 2 2Close Coil Monitor SCADA 2 2

Total Wires 62 48Total Terminations 124 96

Case Study Two – Breaker and a Half Scheme

52

Control IED

Protective IED

TripClose

52aGas Alarm

Spring Alarm

Maint. Alarm

Control House

Switchgear

Communication Message passes Switchgear status, alarms and control from the Control House to the Switchgear

52b

TCMCCM

Ethernet Switch

SCADA

Case Study Two – Breaker and a Half Scheme

Wired Process

Input/Output Process Destination

Wires Req. to Hardw ire Alarms and Control

Wires Req. for SCADA Comm.

Wires Req. at Control House w ith IED Controller

CT 1 IED 1, SCADA, DFR 4 4 4

CT 2 IED 2, SCADA, DFR 4 4 4

CT 3 Adjacent Zone IED 1, SCADA, DFR 4 4 4

CT 4 Adjacent Zone IED 1, SCADA, DFR 4 4 4

DC1 NA Breaker TR/CL supply 1 2 2 2

DC2 NA Breaker TR/CL supply 2 2 2 2

AC1 NA Breaker AC supply 4 2 2

Trip From IED 1, IED 2, SCADA, to DFR 6 4 4

Close From IED 1, IED 2, SCADA, to DFR 6 4 0

Breaker 52a To IED1, IED 2, SCADA 6 4 0

Breaker 52b To IED1, IED 2, SCADA 6 4 0Breaker Gas Alarm To SCADA 2 2 0

Spring Alarm To SCADA 2 2 0

Breaker Maintenance To IED1, IED 2,SCADA 6 2 0Trip Coil Monitor SCADA 2 2 0Close Coil Monitor SCADA 2 2 0

Total Wires 62 48 26Total Terminations 124 96 52

Case Study Three – Transformer Alarm Aggregator

Process PointProcess

Destination

Sets of Wires Req. to Hardw ire Alarms and Control

Sets of Wires Req. at Control House w ith IED Controller

Winding High Temperature Alarm SCADA 2 0

Winding High Temperature Trip Alarm SCADA 2 0

Oil Temperature Alarm SCADA 2 0

Oil Temperature Trip Alarm SCADA 2 0

Low Oil Level Alarm SCADA 2 0

Low Oil Level Trip Alarm SCADA 2 0

Supped Pressure Trip Alarm SCADA 2 0

Buckholtz Trip Alarm SCADA 2 0

Loss of Cooiling AC SCADA 2 0

Windind Temperature (RTD) SCADA 3 0

Oil Temperatue (RTD) SCADA 3 0

Ambient Temperature (RTD) SCADA 3 0

Total 27 0

Case Study Three – High Voltage Breaker with Process Bus

52

4C #10 for CT

12C #10 for Control

12C #16 for SCADA

7C #16 for SCADA

2C #6 for DC

4C #10 for AC

4C #10 for CT

Breaker

44 MHpullingcables

16.8 MHterminations

16.8 MHterminations

77.5 MH 134 terminations 31 MH engineering 16 MH commissioning 52

Fiber Optic Cable

2C #6 for DC

4C #10 for AC

29.8 MH 16 field terminations 116 OEM terminations 11.1 MH engineering 4 MH commissioning

Breaker

20 MHpullingcables

7.8 MHterminations

2 MHterminations

Copper cablesbetween PIUand breakerCopper cables

between PIUand breaker

ProcessInterface Unit

(PIU)

Case Study Three – High Voltage Breaker with Process Bus

Future Directions – A station IED

52

52

52

52

52

52

PIU

Feeder Protection Relay

IED

Conclusions

Rule #1: Wire a Process Value once and only once.

Rule #2: If a function does not have to be wired, then don’t.

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