Overview
JN15-12 indoor high voltage grounding switch by a comprehensive assessment, its performance in line with BG1985 "AC high voltage disconnector and grounding switch" and IEC60129 requirements for 12kV / 40.5kV and below, AC 50Hz power system, with the Type of high-voltage switchgear supporting, as a ground protection.
The switch of the overall grounding switch. With the lower frame, pillar insulators, static contact, moving knife, spindle, fast spring components. In addition, according to user needs, can be equipped with electric display device.
Features
1. Advanced design, reliable technical performance;
2. Simple structure, easy installation and commissioning;
3. Quickly separate, with all-round ability;
4. Beautiful appearance, the production process sophisticated;
5. suitable for the need, about the operation can be;
  
Use environmental conditions
1. altitude of not more than 1000m;
2. Ambient air temperature: upper limit 40 ℃, lower limit -25 ℃;
3. earthquake intensity does not exceed 8 degrees;
4. No flammable, explosive dust, chemical corrosion and severe vibration.
Main technical data
Project unit data
Rated voltage kV 12 40.5
Rated short time withstand current kA 31.5,40 31.5
Rated short duration 4 4
Rated short circuit closing current kA 80,100 80
Rated peak withstand current kA 80,100 80
Interval center distance mm 150,165,210,230,250,275 350,385,460
Rated insulation level 1min Power frequency withstand voltage kV 40/49 95
Lightning impulse withstand current kV 75/85 185