Three protections for high voltage switchgear
Apr 08, 2021
1. The impact of power leakage on coal mine safety production
(1) Generate overvoltage or cause a short circuit between phases;
(2) Causing electric shock;
(3) Detonate the detonator in advance; Zhang Dadian
2. Causes of leakage
(1) The insulation performance of cable electrical equipment has declined due to its own reasons, including insulation aging and moisture.
(2) Improper operation and maintenance. Including the reverse connection of the phase wire and the ground wire, and the use of inferior products when reinforcing the cable.
3. Common leakage protection methods
(1) Additional DC protection mode
(2) Zero sequence current protection mode
Henan Fengyuan Power Technology Co., Ltd.: As one of the most professional switchgear, ring main unit, box type compact substation, power distribution transformer, vacuum circuit breaker manufacturers and suppliers in China, we're featured by the best customized service. Please rest assured to buy high quality products at competitive price from our factory.
Contact us:
Contact: Charles Du
Mobile: +86 18639199897
E-mail: Fengyuan800@outlook.com
