JN22B-40.5 Series lndoor High Voltage Grounding Switch

JN22B-40.5 Series lndoor High Voltage Grounding Switch
JN22B-40.5 Series lndoor High Voltage Grounding Switch

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JN22B-40.5 indoor high voltage grounding switch (hereinafter referred to as grounding switch) is a new product developed by the company. Its performance complies with the national standard GB1985-2004 "(AC high-voltage isolating switch and grounding switch" national standard, suitable for three-phase rated voltage 40.5kV, AC 50Hz power system, can be used with KYN61-40.5 high-voltage switchgear and other types of high-voltage switchgear It is used as a complete set for grounding protection during maintenance of high-voltage electrical equipment. JYN22B-40.5/31.5 type high-voltage ground switch in the corpse is caused by steam and live parts in the industrial cluster, which is convenient for small-angle operation, and is the same as the JN15-12 indoor high-voltage grounding switch , The connection and transmission parts of the JN15-12 indoor high-voltage grounding switch can be used.



Model meaning



Normal use environment


1. The altitude does not exceed 1000m;
2. Ambient air temperature: upper limit +40°C, unlimited -10°C;
3. It is allowed to store and transport at 30℃;
4. The seismic intensity does not exceed 8 degrees;
5. No flammable, explosive, severe dust, chemical corrosion and severe vibration places.



The main technical parameters


No. project Unit project
1 Rated current kA 40.5
2 Rated short-time withstand current kA 31.5
3 Rated short circuit duration s 4
4 Rated short-circuit making current kA 80
5 Rated peak withstand current kA 80
6 Phase center distance mm 210,230,250,275
7 Rated insulation level kV 42
kV 75



Shape and installation dimensions




Installation Cutout Diagram


Model E G L D
JN22B-40.5/31.5-280 280 290 1010 656
JN22B-40.5/31.5-300 300 340 1100 696
JN22B-40.5/31.5-350 350 340 1200 796
JN22B-40.5/31.5-360 360 320 1200 816
JN22B-40.5/31.5-400 400 340 1300 896


Note: When the distance is less than 360, add insulating plates between the phases.

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