| Product name: | JN22-40.5/31.5 type grounding switch | ||||||
| specification: | ![]() |
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| Category: | High voltage electrical appliances -- High voltage grounding switch | ||||||
| Price: | factory price | ||||||
| Brand: | Shanghai | ||||||
| Place of Origin: | China | ||||||
| Available Quantity: | batch | ||||||
| delivery cycle: | Spot goods (or inquire by telephone) | ||||||
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JN22-40.5/31.5 indoor high-voltage grounding switch (hereinafter referred to as grounding switch) is an advanced level product with high technical parameter performance developed by Xi'an High Voltage Apparatus Research Institute. After comprehensive assessment, its performance meets the requirements of the national standard GB1985 "AC High Voltage Isolating Switches and Grounding Switches", suitable for 40.5KV, AC 50Hz power systems, and can be used in conjunction with KYN61-41.5 and other types of high-voltage switchgear. It can also be used for grounding protection during high-voltage electrical commissioning and maintenance.
| project |
unit |
data | ||
| rated voltage |
KV |
forty point five | ||
| Rated short-time withstand current |
KA |
thirty-one point five | ||
| Rated short-circuit duration |
S |
four | ||
| Rated short-circuit closing current |
KA |
eighty | ||
| Rated peak withstand current |
KA |
eighty | ||
| Center distance between poles |
mm |
350; four hundred | ||
| Rated insulation level | 1-minute power frequency withstand voltage |
KV |
Extreme to ground and between poles |
ninety-five |
| Lightning impulse withstand voltage |
one hundred and eighty-five | |||