Transformer Neutral Grounding Resistors
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Applicable to 6~35kV distribution transformer systems
Suitable for 6kV, 10kV, 20kV and 35kV distribution transformers. For delta-connected transformers without neutral point, it can be used as a complete set matched with Z-type earthing transformer.
Product Description
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1 - Limit single-phase earth fault current, extinguish intermittent grounding arcs and avoid equipment insulation breakdown;
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2 - Amplify resistive fault current, improve the sensitivity of relay protection, and quickly locate and isolate faulty lines;
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3 - Collect grounding current and cabinet temperature in real time, trigger audible and visual alarms upon faults, and support communication for data upload to background monitoring system.
Main parameters
Designed and manufactured according to customer requirements, with optional resistance value range, selectable maximum allowable current, configurable current-carrying duration, and insulation performance compliant with applicable standards
Execution standards
Technical advantages
Effectively suppresses arc grounding overvoltage to ensure insulation safety.
Limits single-phase ground fault current to reduce equipment damage.
Eliminates the risk of grid resonance to prevent transformer damage caused by resonance.
Quickly identifies ground faults to shorten the duration of faulty operation.
Balances neutral point potential to ensure stable transformer operation.