summary

Jn22-40.5 indoor high-voltage grounding switch is an indoor high-voltage electrical appliance which is equivalent to iec129-84 "disconnector and grounding switch" and iec694-84 "common terms for high voltage switchgear and control equipment", and is designed according to the relevant grounding part of gb1985-89 "AC high voltage disconnector and grounding switch".

Jn22-40.5 type grounding switch is suitable for 35kV and below three-phase AC 50 Hz power system, and has voltage monitoring device. Its structure is simple and reliable, operation force is small, installation and testing is convenient. It is usually used in jyn1-40.5 and gfc-40.5 switch cabinet, and can also be put into use separately.

Environmental conditions for use

Ambient air humidity: upper limit + 40 ℃; lower limit - 10 ℃ in general area and - 25 ℃ in alpine area. Note: it is allowed to store and transport at - 30 ℃.

The altitude shall not exceed 1000m;

Relative humidity: the daily average value is not more than 95%, and the monthly average value is not more than 90%.

The earthquake intensity is not more than 8 degrees;

No fire, inflammable, explosive, serious pollution, chemical corrosion and violent vibration. Note: if the product use conditions exceed the above provisions, it shall be determined by the user and the manufacturer through negotiation.

Model and meaning

Main technical parameters

Outline and installation dimension drawing