38.LFDC Relay Testing With F6150-1
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Transcript of 38.LFDC Relay Testing With F6150-1
![Page 1: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/1.jpg)
Knowledge Is PowerSM
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Brief Introduction for Automated Testing of LFDC101/102 Relay
Kamin DaveManager – Marketing & Protection Applications
South Asia & Middle EastDOBLE ENGINEERING COMPANY, INDIA
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Protection Relay Testing:
Testing of LFDC101/102Relay by using F6150
![Page 3: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/3.jpg)
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Relay Details: LFDC101/102
High speed directional comparison protection using signaling channel
Distance Zone Backup
Switch On to Fault Protection
Voltage Transformer supervision
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Relay Details: LFDC101/102
Operating time of Directional comparison unit is 12 to 15ms
Operating time of Distance zone (Backup) is adjustable
![Page 5: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/5.jpg)
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![Page 6: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/6.jpg)
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Relay Details: LFDC101/102
![Page 7: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/7.jpg)
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Relay Details: LFDC101/102
![Page 8: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/8.jpg)
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Relay Details: LFDC101/102
![Page 9: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/9.jpg)
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Relay Details: LFDC101/102
![Page 10: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/10.jpg)
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Relay Details: LFDC101/102
![Page 11: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/11.jpg)
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Relay Details: LFDC101/102
![Page 12: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/12.jpg)
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Relay Details: LFDC101/102
![Page 13: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/13.jpg)
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Relay Details: Measuring Principle
RA RBCommunication(Signaling betn two relays)
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Relay Details: Measuring Principle
Carrier scheme supervised by Mho elementIf there is fault in Line & fault impedance falls under preset value then Both relays will send carrier signals to each otherScheme is normally applied as a primary protection for short line length (<5km)
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Relay Details: Measuring Principle
F1 External fault (F1) in Forward direction
IA = - IBIA + IB = 0
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Relay Details: Measuring Principle
F1
External fault (F1) in Forward direction
IA
IB
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Relay Details: Measuring Principle
F1
External fault (F1) in Forward direction
ZA
ZB
ZF
ZF
Forward Direction
Reverse Direction
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Relay Details: Measuring Principle
F1 External fault (F1) in Reverse direction
Both currents are zero in Radial feeder IA = 0IB = 0
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Relay Details: Measuring Principle
External fault (F1) in Reverse direction
ZA ZB
ZFZF
Reverse Direction
S1 S2
RA RB
F1
IA IB
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Relay Details: Measuring Principle
F1 Internal fault (F1) in Forward direction
IA
IB
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Relay Details: Measuring Principle
F1 Internal fault (F1) in Forward direction
ZA
ZBZF
ZF
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Relay Details: Measuring Principle
ZA
ZB ZF
ZF
RF
RF
Kn = 0.75
Internal Fault: Fault measurement for Phase to Ground faults
Kn = 0.75
R in Ohms
X in Ohms
R in Ohms
X in Ohms
RA
RB
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Relay Details: Measuring Principle
Internal fault (F1) in Forwarddirection& fault feeding is from End A
F1 F2
Internal fault (F2) in Forwarddirection& fault feeding is from End B
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Relay Details: Measuring Principle
Internal fault (F1) in Forward direction & Fault feeding is from source “S1”
ZA ZB
ZFZF
S1RA RBF1
RC RDZC ZD
ZF
ZF
Relay “RC” will operate on Back Zone
IA IB
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Relay Details: Measuring Principle
ZA
ZB ZF
ZF
Relay Operating time faster (12 to 15ms) when carrier signal receive & impedance falls under preset value during internal faults
R in Ohms
X in Ohms
R in Ohms
X in Ohms
RA
RB
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Relay Details: Measuring Principle
ZA
ZB ZF
ZF
Relay Operating time based on time delay set in relay when carrier signal NOT receive & impedance falls under preset value during internal faults
R in Ohms
X in Ohms
R in Ohms
X in Ohms
RA
RB
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LFDC Relay for Line1
LFDC Relay for Line2
220KV GETCO S/S
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220KV GACL S/S
LFDC Relay for Line1
LFDC Relay for Line2
PLCC Cabinet
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Communication through PLCCPLCC: Power Line Carrier Communication (PLCC) is used to communicate devices between substations.The Audio frequency is carried out by a carrier frequency and the range of carrier frequency is 24kHz to 500kHzWave trap: It is an inductor of rating in mili henry. It is connected in series with the power transmission line. It blocks the high frequency carrier waves (24kHz to 500kHz) and let Power waves (50Hz – 60Hz) to pass through.
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Communication through PLCCCoupling Capacitor: It provides low impedance path for carrier energy to H.V. line and blocks the power frequency circuit by being a high impedance path.HF Cable: It is used to carry to signal from PLCC cabinet to switchyard
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Communication through PLCCPLCC Cabinet: It indoor equipment. It is divided in two parts;
TransmitterReceiver
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Communication through PLCCWave trap or Line trap
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Carrier send Carrier receive
Carrier receive Carrier send
Communication through PLCC
Exchange SignalsBoth are thinking same
Scheme Stable on External Faults
220KV GETCO S/S 220KV GACL S/S
F1RA RB
Delta V = 0Delta I = 0IA - IB = Delta IIA = IB VA - VB = Delta VVA = VB
IA IB
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Carrier send Carrier receive
Carrier receive Carrier send
Communication through PLCC
Scheme Operates on Internal Faults
220KV GETCO S/S 220KV GACL S/S
F1RA RB
Delta V = ?Delta I = ?IA - IB = Delta IIA not equal to IBVA - VB = Delta VVA not equal to VB
Exchange SignalsBut both are thinking in different
IA IB
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Carrier send Carrier receive
Carrier NOT receive Carrier send
Communication through PLCC
Scheme Operates on Internal Faults
220KV GETCO S/S 220KV GACL S/S
F1RA RB
Delta V = ?Delta I = ?IA - IB = Delta IIA not equal to IBVA - VB = Delta VVA not equal to VB
No Exchange of SignalsBut both are thinking in different
IA IB
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Communication through PLCC
![Page 37: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/37.jpg)
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Communication through PLCC
![Page 38: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/38.jpg)
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Relay Details: LFDC101/102
Relay Settings:Location: GETCO and GACL Ends, DahejLine length: 1.5kmLine voltage: 220kV (Line1)• Z = 0.2 Ohms• tZ = 0.2s• Line Angle = 78 Deg.• Kn = 0.75
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Test Equipment
• Make : DOBLE
• Model : F6150
Software
• F6TesT Version 2.19-1065
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VA
VB
VC
I1
I2
I3
Relay
Test Circuit:
Source Configurations:3V X 3I
CT Inputs
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• Zone Time Test during carrier signal received from other end
• Zone Time Test (Distance Zone Backup)
• Zone Characteristic Test
• SOTF Test
• Stability Test of scheme
Test Conducted:
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Zone Time Test during Carrier signal received
from other end
Use “ZTime” Module
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Location Level
Right click on Mouse & click on “Append” and create new Location
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Relay Level
Right click on Mouse & click on “Append” and create new Relay
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Relay Parameters
Click on “Add” button & select “Impedance” function
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Click here & then click on “New Zone” button
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Select “MHO” & enter relay settings
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Click on “Yes”
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Characteristic created for Ph-N fault
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Characteristic created for Ph-Ph & 3-Ph faults
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Click on “Yes”
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Right Click on “Mouse” & Click on “Append” to create new Test plan
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Right click on “Mouse” & click on “Append” to create new test module for testing
![Page 54: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/54.jpg)
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Select “Z-Time” Module from list
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Press on “OK” & Create New Test Definition
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Select characteristic from list
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Enter Test current (i.e. 2.3A)
Select Test Method
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Select Trigger (i.e. Open to Close)
Enter Prefault duration & Max. fault duration
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Click Test points in R-X Plane for “Ph-Ph” fault
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Right Click on check box
Green/Red Points areActual Points have been tested
Blue color shows;Expected characteristic
Line Angle
Relay operated in 12 to 13ms
Carrier signal received from other end on E19 & E20terminals of Relay
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Display shows relay tripped on DIR (A-N fault)
Time Test: Directional Comparison
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Zone Time Test (Distance Zone Backup)
Use “ZTime” Module
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Right Click on check box
Green/Red Points areActual Points have been tested
Blue color shows;Expected characteristic
Line Angle
Relay operated in 250 to 260ms
Carrier signal NOT received from other end on E19 & E20 terminals of Relay
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Right Click on check box
Green/Red Points areActual Points have been tested
Blue color shows;Expected characteristic
Line Angle
Relay operated in 250 to 260ms
Carrier signal NOT received from other end on E19 & E20 terminals of Relay
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Display shows relay tripped on Z (T) (BC fault)
Time Test: Distance Backup Zone
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Characteristic Test
Use “ZChar” Module
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Apparatus Maintenance and Power Management for Energy Delivery
Right click on “Mouse” & Press on “Append”& Create new Test Module
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select “Z-Char” Module from list
![Page 69: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/69.jpg)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Double click on “Characteristic Test”
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Press on “OK” & Create New Test Definition
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select characteristic from list
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select Test Method
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Test current (i.e. 2.3A)
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select Trigger (i.e. Open to Close)
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Angle Boundary for test (Say; start from 0 to 180 Degree)
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Angle Boundary for test (Say; start from 0 to 180 Degree)
![Page 77: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/77.jpg)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Green Points (white lines) areActual Points have been tested
Blue color shows;Expected characteristic
Line Angle
Right Click on check box
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Right Click on check box
Green Points (white lines) areActual Points have been tested
Blue color shows;Expected characteristic
Line Angle
![Page 79: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/79.jpg)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
SOTF Test
Use “SSIMUL” Module
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select SSIMUL Module from list
![Page 81: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/81.jpg)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
State1 set for SOTF
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Operating time recorded 47ms
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Scheme Testing
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Comm Channel
Protectionunder test
GPS Synch: End to End Testing
Test PUTT/POTT Schemes
1pps Signal 1pps SignalF6910+F6885+F6895 Option
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Communication through PLCC
Counter for Carrier send signals
Counter for Carrier receive signals
Both end relays tripped on 13ms
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
![Page 87: 38.LFDC Relay Testing With F6150-1](https://reader031.fdocuments.us/reader031/viewer/2022012405/547f13afb4af9fb9158b590c/html5/thumbnails/87.jpg)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
F6TEST2.21-1157 Advance Line Version
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
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Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
DOBLE ENGINEERING COMPANY2nd Floor Suvidhi Pride,Opp. Shell Petrol Pump,Gorwa-Refinery RoadVADODARA-390 015INDIA. Cell:- +91 98980 55956EMAIL ID:- [email protected]:- www.doble.com