- JN22B-40.5/31.5 Indoor high voltage AC grounding switch earthing switch from JUCRO ElectricDetail InformationJN22B-40.5/31.5 Indoor high voltage three-phase AC grounding switch earthing switch from JUCRO ElectricGENERAL
JN22B-40.5/31.5 indoor high voltage grounding switch (hereinafter referred to as grounding switch) is a new product developed by the company. Its performance meets the requirements of national standard GB1985-2004 "AC high-voltage isolating switch and grounding switch" and IEC62271-102:2002. It is applicable to three-phase rated voltage 40.5kV, AC 50Hz power system, and KYN61-40.5 high voltage switch. Cabinets and other high-voltage switchgears are used together as a grounding protection for high-voltage electrical equipment maintenance.
The JN22B-40.5/31.5 indoor high voltage grounding switch is improved on the basis of the above grounding switch. The structure is simple and compact, the performance is consistent, and it is easy to operate at a small angle. As with the JN15-12 series, JN15-12 connections and transmissions are available.WORKING CONDITION
1. The altitude does not exceed 1000m:
2. Ambient air temperature: +40°C ~ -20°C;
3. The earthquake intensity does not exceed 8 degrees;
4. Installed in a place where there is no fire, explosion hazard, severe dust, chemical corrosion and severe vibration.
CODING RULESMAIN TECHNICAL PARAMETERSItemUnitDataRated voltageKV40.5Rated short-time withstand currentKA31.5Rated withstand current(peak value)KA80Rated short-circuit making currentKA80Rated insulation levelPower frequency withstand voltage(1 min)KV95Lightning impulse voltageKV185DIMENSIONSModelPhase to phase distance AFprincipal axis LThe height of the sensor for plateau type HJN22B-40.5/31.5-2802802901010
Below 1000 meters 145
Below 2000 meters 170
Below 3000 meters 185Below 3000 meters 210JN22B-40.5/31.5-3003003401100JN22B-40.5/31.5-3503503401200JN22B-40.5/31.5-3603603201200JN22B-40.5/31.5-4004003401300OVERALL AND INSTALLATION DIMENSIONSRelated Products
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