Secondary LV Oil Breaker(CSP)

• The breaker is a self-protection device installed on the secondary side of the transformer to protect it from long-term overload or short-circuited current on the load side by automatic trip.
• It can be used in single-phase and three-phase transformers, in pad-mounted or pole-mounted transformers. The breaker has an optional overload alarm indicator light and an Emergency Overload function.
• Usually, this breaker is used with HV weak link together to get the full range over-current protection for the transformer.

• To order two poles breaker for your single phase transformer or three poles breaker for your three phase transformer, please give us your transformer parameters: Single or three phase, HV/LV voltage Values, kVA Value, Delta or Wye, Short circuit impedance (%).
• Also give us the trip oil temperature your required (The default temperature value is 110℃). Then we can help you select the proper breaker models.