400kV circuit breeaker with capacitor in parallel to the pole
400kV circuit breeaker with capacitor in parallel to the pole
(OP)
Dear all. On site we have a 400kV circuit breaker that connects our step-Up transformer high voltage to the grid substation.
The poles of the circuit breaker have in parallel connection capacitors.
Can you explain why these capacitors are installed?
I guess they are used for precharging of the breaker.
The breaker type is Magrini Galileo 420MhMe-2.
The poles of the circuit breaker have in parallel connection capacitors.
Can you explain why these capacitors are installed?
I guess they are used for precharging of the breaker.
The breaker type is Magrini Galileo 420MhMe-2.






RE: 400kV circuit breeaker with capacitor in parallel to the pole
There is a buyers guide for HV circuit breakers available in ABB website. I find it quite informative.
RE: 400kV circuit breeaker with capacitor in parallel to the pole
RE: 400kV circuit breeaker with capacitor in parallel to the pole
Single-break breakers may not have a capacitor unless it is recommended by the manufacturer to limit the rate-of-rise of the transient recovery voltages during short-line fauls.
Bahram7
www.Simtech-Intl.com