Post on 29-Mar-2015
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
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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
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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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