Structure and performance
The GN□-12D cable-side grounding disconnector has a novel structure and is a new type of disconnector independently developed by the company. The moving and static contacts are installed on two parallel insulators. It has small installation space, convenient busbar connection, obvious fracture, and is suitable for various installation heights. Grounding on the side of separate and protective outgoing cables.
The main technical parameters
| Model Specifications | GN□-12D/630 | GN□-12D/1250 | |
| Rated voltage (kV) | 12 | ||
| Rated current (A) | 630 | 1250 | |
| 4s short-time withstand current (kA) | 20 | 31.5 | |
| Rated peak withstand current (kA) | 50 | 80 | |
| Rated insulation level | Lightning impulse voltage (kV) | Phase-to-phase, relative to ground 42, fracture 48 | |
| 1min power frequency withstand voltage (kV) | Phase, relative to 75, fracture 85 | ||
Shape and installation dimensions
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