Overview
The “Instantaneous differential” element acts as an instantaneous overcurrent element responding to the measured differential current magnitude (filtered fundamental frequency component) and applying a user-selectable pickup threshold.
For more detailed information on “Instantaneous differential” 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 |
| T35, T60 | 3E74 | Inst Differential Function | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| " | 3E75 | Inst Differential Pickup | 2 to 30 | pu | 0.001 | F001 | 8000 |
| " | 3E76 | Inst Differential Block | 0 to 4294967295 | — | 1 | F300 | 0 |
| " | 3E78 | Inst Differential Target | 0 to 2 | — | 1 | F109 | 0 (Self-reset) |
| " | 3E79 | Inst Differential Events | 0 to 1 | — | 1 | F102 | 0 (Disabled) |
| F102 | 0 = Disabled, 1 = Enabled | ||||||
| F109 | 0 = Self-reset, 1 = Latched, 2 = Disabled | ||||||
Logics & highlights
Instantaneous differential logic
