Overview
The “VT fuse failure” detector is used to raise an alarm and/or block elements that operate incorrectly for a full or partial loss of AC potential caused by one or more blown fuses. Some elements that can be blocked (via the BLOCK input) are distance, voltage restrained overcurrent, and directional current.
For more detailed information on “VT fuse failure” detector, 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, C60, C70, C95, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, N60, T60 | CF1A | VT Fuse Failure Function | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | CF1B | VT Fuse Failure Neutral Wire Open Function | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | CF1C | VT Fuse Failure Neutral Wire Open 3rd Harmonic Pickup | 0.004 to 3 | pu | 0.001 | F001 | 100 |
| " | CF1D | VT Fuse Failure 1 Alarm Delay | 0 to 65.535 | s | 0.001 | F001 | 1000 |
| B30 | CF1E | VT Fuse Failure 1 CT Source | 0 to 30 | — | 1 | F677 | 0 (None0 |
| B30, C60, C70, C95, D30, D60, F35, F60, G30, G60, L30, L60, L90, M60, N60, T60 | CF1F | …Repeated for Source 2 | |||||
| B30, C60, C70, C95, D60, F35, F60, G30, G60, L60, L90, M60, N60, T60 | CF24 | …Repeated for Source 3 | |||||
| " | CF29 | …Repeated for Source 4 | |||||
| B30, C70, F35, N60, T60 | CF2E | …Repeated for Source 5 | |||||
| " | CF33 | …Repeated for Source 6 |
| F102 | 0 = Disabled, 1 = Enabled | ||||||
| F677 | 0 = None, 1 = SRC 1, 2 = SRC 2, 3 = SRC 3, 4 = SRC 4, 5 = SRC 5, 6 = SRC 6, 7 = SRC 7 | ||||||
