Product

Neutral Point Grounding Resistance

Product Introduction
The neutral point grounding resistance is a current-limiting protection equipment used in the neutral point grounding system of distribution network. By connecting a resistor with an accurate resistance value, it limits the single-phase grounding fault current within a safe range, and achieves rapid fault detection and protection actions. It is mainly applied to the distribution network system in the power grid field dominated by cables, new energy power generation field and industrial and mining enterprises field.

Product Specifications
Voltage level: 10 kV, 35 kV.
Resistance value: 1Ω - 2000Ω (optional).
Fault current limit: 10 A - 2000 A (customizable).

Product Features
1) It adopts the stainless steel alloy material resistor, which has strong flow capacity, corrosion resistance, strong oxidation resistance and high resistance value stability.
2) The transient over-voltage is limited to within 2.5 times to prevent arc over-voltage from damaging the main equipment.
3) Insulation method of grounding transformer: Epoxy resin casting type (dry insulation), oil-immersed type.
4) It has a significant effect on suppressing the ferroresonance over-voltage.
5) The XHDR monitoring device can be optionally equipped with informational functions such as monitoring neutral point current, resistance cabinet temperature, instantaneous current of grounding fault and recording grounding times.