Dalian Xin’anyue Electric Power Equipment Co., Ltd. is one of the leading manufacturers and suppliers of neutral grounding resistor cabinet in China. We are committed to providing high quality customized products with competitive price. Welcome to wholesale CE approved neutral grounding resistor cabinet from our factory.
The AY-ZZD series main transformer neutral point grounding resistor cabinets are engineered for transformer neutral-point applications within 6-35 kV cable-based power systems that feature relatively large earth-capacitance currents. As qualified Neutral Grounding Resistor equipment, these cabinets effectively mitigate destructive grid overvoltages and lift overall system safety as well as operational reliability. Manufactured by Dalian Xinanyue Electric Power Equipment Co., Ltd., this series adopts specially selected stainless-steel alloy materials for cabinet fabrication.
Without proper restriction, arc-grounding overvoltages are likely to arise once fault current surpasses preset thresholds. Resistor-based neutral-point grounding works by feeding resistive current to the fault location. For this Neutral Grounding Resistor solution, the resistive component is configured at 1.05-1.1 times the system capacitive component. Such setting properly restricts fault-magnitude current, raises the sensitivity of connected relay protection devices, and confines fault damage to limited local areas.
Working as a well-calibrated Neutral Grounding Resistor assembly, the cabinet limits transient over-voltage magnitude down to 2.6 times nominal phase-to-neutral voltage. It protects key power assets from arc-caused overvoltage destruction and delivers remarkable suppression effects against ferroresonance overvoltages. With robust stainless-steel housing, the cabinet adapts to various substation site conditions, cuts routine maintenance workload, and serves as critical auxiliary gear for modern medium-voltage power grid fault-handling schemes.
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