Earthing Switch for Switchgear Product Description
Jn15 indoor high-voltage alternating-current earthing switch is used as a support product for indoor three-phase alternating- current power systems of 3 ~ 40.5kV and 50(60)Hz and high- voltage switch cabinets or as an earthing switch for the overhauls of high-voltage electrical equipment. It is characterized by simple and compact structure, light weight, flexible operation, easy installation and good thermal stability and dynamic stability.
JN15-12/24/40.5KV indoor high-voltage alternating-current earthing switch is produced in line with the following standards and codes.
GB 1985 High-voltage alternating-current disconnectors and earthing switchesIEC 62271-102 High-voltage alternating-current disconnectors and earthing switches
Grounding Switch Earthing Switch Environmental Conditions
Ambient temperature: – 40°C~+40°C (below 35°C within 24 hours) Relative humidity: ≤95% (daily average) or ≤90% (monthly average) Altitude: ≤ 1000m
Indoor High Voltage Earthing Switch Main Technical Parameters
Item | Unit | Rsference valie | |
Rated voltage | KV | 12/24/40.5 | |
Rated insulation level | Lightning impulse withstand voltage | KV | 75,145,185 |
1min power-frequency withstand voltage | KV | 42,65,95 | |
Rated frequency | Hz | 50 / 60 | |
Rated short-time withstand current | kA | 31.5 / 40 | |
Rated withstand current(peak value) | kA | 80 / 100 | |
Interphase center distance | mm | See the table |
Model and specification | E | L | C |
JN15-24/31.5-275 | 275 | 810 | 646 |
Product picture details (Real product picture, unprocessed)
Service Environment