High-voltage vacuum circuit breaker
Thread Content
1. How to determine the parameters of a high-voltage vacuum circuit breaker? Parameters such as rated short-circuit breaking dark current and rated short-circuit making current? 2. Which domestic high-voltage vacuum circuit breaker offers the best quality?
The rated breaking current should primarily be calculated based on the short-circuit capacity; it is necessary to determine what the maximum short-circuit current is at the location where the circuit breaker is installed
System rated current, maximum short-circuit current (including thermal stability current); there’s not much need for domestic products in this regard, as ABB and Siemens offer very competitive prices
What is the quality of vacuum circuit breakers produced by Jiangsu Daquan, Schneider Electric Baoguang, and Cooper (Ningbo)? Are they of the same grade?
Cooper’s circuit breakers are indeed good to use. At present, they are the only ones in China that can handle a voltage level of 10KV with a current capacity of 5000A. Our factory has always used Beikai circuit breakers, which are also quite good. ABB and Siemens’ products are indeed excellent, but high-quality items aren’t as durable – that’s something everyone understands