Dalian Xin’anyue Electric Power Equipment Co., Ltd. is one of the leading manufacturers and suppliers of btb-ⅲ transformer core grounding current resistor current limiting device in China. We are committed to providing high quality customized products with competitive price. Welcome to wholesale CE approved btb-ⅲ transformer core grounding current resistor current limiting device from our factory.
Produced by Dalian Xinanyue Electric Power Equipment Co., Ltd, the BTB-III core grounding current limiting device safeguards power transformers against minor core-grounding faults common in substations and power-plant sites. Once slight core earthing failure emerges, this unit connects resistors into grounding loops to suppress fault current, preventing core burnout and keeping transformers running until scheduled maintenance work.
This core grounding current limiting device works cooperatively with BTD-III transformer core grounding current monitor. It can switch in a 750Ω resistor automatically or manually once measured values pass alarm thresholds. Field operators are also allowed to pick 750Ω, 500Ω or 250Ω resistors manually on-site for flexible current-limiting protection matching real-time fault-current magnitude. Resistor parameters get adjusted accordingly to hold transformer core away from thermal damage.
Built for actual substation deployment, this core grounding current limiting device adopts resistor-based current-limiting logic. Strong immunity against external electromagnetic interference keeps its reliable performance without bringing extra risks to live transformers. Compact-sized and light-weight, it is quick for field mounting. Its stainless-steel cabinet stands against rain, dust, corrosion and UV radiation, supporting long-time outdoor service with zero routine maintenance required.
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