Overview
The “Auxiliary overvoltage” element is intended for monitoring overvoltage conditions of the auxiliary voltage. The nominal secondary voltage of the auxiliary voltage channel. A typical application for this element is monitoring the zero-sequence voltage (3V_0) supplied from an open-corner-delta VT connection.
For more detailed information on “Auxiliary overvoltage” 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 |
| All except B90, C30, N60, T35 | 51BA | Auxiliary Overvoltage 1 Function | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 51BB | Auxiliary Overvoltage 1 Signal Source | 0 to 5 | — | 1 | F167 | 0 (SRC 1) |
| " | 51BC | Auxiliary Overvoltage 1 Pickup | 0.004 to 3 | pu | 0.001 | F001 | 300 |
| " | 51BD | Auxiliary Overvoltage 1 Pickup Delay | 0 to 600 | s | 0.01 | F001 | 100 |
| " | 51BE | Auxiliary Overvoltage 1 Reset Delay | 0 to 600 | s | 0.01 | F001 | 100 |
| " | 51BF | Auxiliary Overvoltage 1 Block | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 51C1 | Auxiliary Overvoltage 1 Target | 0 to 2 | — | 1 | F109 | 0 (Self-reset) |
| " | 51C2 | Auxiliary Overvoltage 1 Events | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 51C3 | Reserved (8 items) | 0 to 65535 | — | 1 | F001 | 0 |
| B30, C70, C60, C95, D60, F35, F60, G30 G60, L90, M60, T60 | 51CB | …Repeated for Auxiliary Overvoltage 2 | |||||
| B30, C70, F35, T60 | 51DC | …Repeated for Auxiliary Overvoltage 3 | |||||
| B30 | 51ED | …Repeated for Auxiliary Overvoltage 4 | |||||
| " | 51FE | …Repeated for Auxiliary Overvoltage 5 | |||||
| " | 520F | …Repeated for Auxiliary Overvoltage 6 |
| F102 | 0 = Disabled, 1 = Enabled | ||||||
| F109 | 0 = Self-reset, 1 = Latched, 2 = Disabled | ||||||
| F167 | 0 = SRC 1, 1 = SRC 2, 2 = SRC 3, 3 = SRC 4, 4 = SRC 5, 5 = SRC 6 | ||||||
Logics & highlights
Auxiliary overvoltage logic
