Thread Content
I need high and low voltage equipment as well as transformers for various projects, and I would like to use domestic equipment. I hope everyone can recommend some high-quality domestic manufacturers. The items in question include transformers, high and low voltage switchgear, high-voltage vacuum circuit breakers, molded case circuit breakers, frame-type circuit breakers, reactive power compensation devices, and harmonic control devices. Thank you!
I happen to have a project here as well that faces similar issues to the original poster’s. For a project of our company in the domestic market, we used dry-type transformers from Sanbian; they are quite good, and feedback indicates that they are superior to those from Liute. When it comes to switchgear, WanControl is considered a leader in China. For molded-case and frame-type circuit breakers, our old company has always used those produced by Changshu Switch Factory, which are of high quality. For protection, it’s Nanrui’s. For reference only
Dry-type transformers: Shunt, Oil-type transformers: TBEA. Switchgear: Zhejiang Switchgear, Xi’an Switchgear. Circuit breakers: High-voltage ABB VD4; low-voltage circuit breakers from Changshu Switchgear Factory. High-voltage reactive power compensation: Shanghai Siyuan. No reactive power compensation for low-voltage systems
Why not use reactive power compensation at low voltage?
Low-voltage capacitors are prone to problems; if the high-voltage reactive power compensation is sufficient, that’s fine
Low-voltage compensation is beneficial for transformers
For transformers, Hua Peng and Shunte are generally good choices. For switchgear, larger domestic manufacturers are all fine; the key is to select high-quality components. For high-voltage circuit breakers, we usually use those produced by Beikai – they are of good quality. As for domestic switches for low voltage applications, Changshu brands are commonly used. For reactive power compensation at low voltage, Surong is a good option; for high voltage, Shanghai Yongjin or Siyuan Electric are suitable. For harmonic control, Guangzhou Guangda’s domestic products are used