Overview
The “End fault protection (EFP)” element operates for dead-zone faults; that is, it faults between the CT and an open feeder breaker. Since a bus protection zone terminates on the CTs, faults between the CT and breaker require special consideration.
For more detailed information on “End fault protection (EFP)” element, refer to GE, Universal Relay (UR) family of products, Version 8.0x manuals.
To see other supported elements, click here.
Setting Parameters
Modbus memory map for Setting parameters
| Products | Hex address | Register name | Range | Units | Step | Format | Default |
| B30, B90 | 9B86 | End of Fault Protection 1 Function | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 9B87 | End of Fault Protection 1 CT | 0 to 23 | — | 1 | F400 | 0 |
| " | 9B88 | End of Fault Protection 1 Pickup | 0.02 to 30 | pu | 0.001 | F001 | 1200 |
| " | 9B89 | End of Fault Protection 1 Breaker Open | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 9B8B | End of Fault Protection 1 Breaker Delay | 0 to 65.535 | s | 0.001 | F001 | 400 |
| " | 9B8C | End of Fault Protection 1 Manual Close | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 9B8E | End of Fault Protection 1 Pickup Delay | 0 to 65.535 | s | 0.001 | F001 | 40 |
| " | 9B8F | End of Fault Protection 1 Block | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 9B91 | End of Fault Protection 1 Target | 0 to 2 | — | 1 | F109 | 0 (Self-reset) |
| " | 9B92 | End of Fault Protection 1 Events | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 9B93 | …Repeated for EoF Protection 2 | |||||
| " | 9BA0 | …Repeated for EoF Protection 3 | |||||
| " | 9BAD | …Repeated for EoF Protection 4 | |||||
| " | 9BBA | …Repeated for EoF Protection 5 | |||||
| " | 9BC7 | …Repeated for EoF Protection 6 | |||||
| " | 9BD4 | …Repeated for EoF Protection 7 | |||||
| " | 9BE1 | …Repeated for EoF Protection 8 | |||||
| " | 9BEE | …Repeated for EoF Protection 9 | |||||
| " | 9BFB | …Repeated for EoF Protection 10 | |||||
| " | 9C08 | …Repeated for EoF Protection 11 | |||||
| " | 9C15 | …Repeated for EoF Protection 12 | |||||
| " | 9C22 | …Repeated for EoF Protection 13 | |||||
| " | 9C2F | …Repeated for EoF Protection 14 | |||||
| " | 9C3C | …Repeated for EoF Protection 15 | |||||
| " | 9C49 | …Repeated for EoF Protection 16 | |||||
| " | 9C56 | …Repeated for EoF Protection 17 | |||||
| " | 9C63 | …Repeated for EoF Protection 18 | |||||
| " | 9C70 | …Repeated for EoF Protection 19 | |||||
| " | 9C7D | …Repeated for EoF Protection 20 | |||||
| B90 | 9C8A | …Repeated for EoF Protection 21 | |||||
| " | 9C97 | …Repeated for EoF Protection 22 | |||||
| " | 9CA4 | …Repeated for EoF Protection 23 | |||||
| " | 9CB1 | …Repeated for EoF Protection 24 |
| F102 | 0 = Disabled, 1 = Enabled | ||||||
| F109 | 0 = Self-reset, 1 = Latched, 2 = Disabled | ||||||
| F300 | 0 : Off (This is boolean FALSE value), 1 : On (This is boolean TRUE value) | ||||||
| F400 | 0: Card 1 Contact 1 to 4, 1: Card 1 Contact 5 to 8, 2: Card 2 Contact 1 to 4, 3: Card 2 Contact 5 to 8, 4: Card 3 Contact 1 to 4, 5: Card 3 Contact 5 to 8 | ||||||
Logics & highlights
Application of end fault protection element
End fault protection and bypass isolators
End fault protection logic
