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JN15-12 model indoor HV earthing switch is newly advanced product applying newest technology of this model in the world. It is approved that the switch accords with standards of IEC-129, mainly used for earthing protection matched with all kinds of H.V. switchgear in the power system AC 50Hz, rated voltage up to 12kV. It is a integrate- type earthing switch that be composed of pedestal, supporting insulator, moving/fixed contact, main shaft and celerity spring. Furthermore, we can install electriferous display if customers need.
Item | Unit | Data | |
Rated voltage | kV | 12,24,36 | |
Rated short-time withstand current | kA | 31.5; 40,50 | |
Rated duration of short circuit | s | 4 | |
Rated short circuit making current | kA | 80; 100,125 | |
Rated peak withstand current | kA | 80; 100,125 | |
Core distance between poles | mm | 150,165,210,230,250,275,300,385,460 | |
Rated insulating level | 1 min P.F. withstand voltage | kV | 42/49, 95 |
Lightning impulse withstand voltage | 75/85,185 | ||
JN15 12kV24kV High voltage indoor earth switch