EK6 Earthing Switch
Description
The EK6 earthing switch is designed and manufactured based on the advanced new techniques of both domestic and overseas. It consists of such main components as the base, supporting insulator, main axis, spring, fixed and moving contact. As a highly reliable electrical protection device, this indoor earthing switch meets the standards IEC 62271-102: High-Voltage Switchgear and Controlgear, Part 102: Alternating Current Disconnectors and Earthing Switches. It could be applied in a power system of a rated voltage 12kV or 40.5kV, and a rated current of 50Hz or 60Hz and provide reliable earthing protection to the system.
Ambient Conditions of the EK6 Earthing Switch
1. ambient air temperature:
upper limit 40 ℃;
lower limit – 25 ℃ ;
allow to be stored and transported under – 30 ℃;
2. altitude limit: under 1500m;
3. relative humidity: under 90%;
4. earthquake intensity: not higher than magnitude 8;
5. Fire, combustible materials, too many dust, chemical corrosion and strong shock should be avoided.
Technical Parameters of the EK6 Earthing Switch
| Model | Rated voltage (kV) | Highest working voltage (kV) | 4S rated short time with stand current (kA) | Rated dynamic stable current (peak value) (kA) | Making current (peak value) (kA) | Pole centers (mm) | Making speed (m/s) | Main circuit contactre sistance (μΩ) |
| 10 | 12 | 31.5 | 80 | 80 | 210 | > 6 | < 120 | |
| 35 | 40.5 | 31.5 | 80 | 80 | 280 | > 6 | < 120 |
Please be noted we could provide custom pole centers according to your specific requirements.
Boundary Dimension Figure
- boundary dimension figure of the 12kV
EK6 earthing switch - boundary dimension figure of the 40.5kV
EK6 earthing switch
