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Related Products
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Supplier NGR High Voltage Neutral Point Generator Distribution Resistance BoxUS$ 12000 - 20000MOQ: 1 Piece -
NGR For Generator Neutral Grounding ResistorsUS$ 1000 - 20000MOQ: 1 Piece
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Generator Neutral Grounding Resistors (MRD-FD1)US$ 1000 - 20000MOQ: 1 Piece
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NGR For Generator Neutral Grounding ResistorsUS$ 1000 - 40000MOQ: 1 Piece
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10KV NGR Neutral Grounding Resistors CabinetUS$ 2000 - 20000MOQ: 1 Piece
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FUNCTION
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Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning). |
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SPECIFICATIONS
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There are six parameters needed to specify the neutral grounding resistor. 2. Rated fault current. 3. Rated “duration time” of the line to neutral voltage not exceeding the allowable temperature rise. 4. Rated Resistance. 5. Application environment, indoor or outdoor. 6. Enclosure material, ss plate or normal cold rolled sheet. |
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RANGE
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• Rated current: from 1 amp to 2000 A • Rated voltage: from 0.4 to 35kV • Rated Resistance: from 1 ohm to 2000 ohm • Rated time: 1 sec to continuous time rating |
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TESTING AND QUALITY
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with IEEE-32. Routine tests performed on each Neutral Grounding Resistor are measurement of resistance, high voltage power frequency, insulation measurement, aspect verification, dimensional control. Mingrui’s internal quality system has been developed and certified under ISO 9001 quality system |
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CONSTRUCTION
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Standard unit includes the stainless steel resistor assembly plus all the required insulators, internal connections and hardware installed in a standard safety enclosure. Neutral Grounding Resistor units are completely assembled, prewired, and tested at our facility. For shipping all units are crated for added protection and ease of handling. |
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ENCLOSURE FEATURES
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• Forged eyebolts in all four corners for easy hoisting. • Corrosion resistant nameplate provides complete ratings and manufacturers information. •Heavy gauged enclosure polyester powder coated finish provides maximum protection. |
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ENCLOSURE OPTIONS
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•Stainless steel, cold rolled plate construction. Custom paint finish is available. |
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OPTIONS
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Current or potential transformers mounted and prewired at our facility ON or OFF Load disconnecting switches |
Ordering Instructions
To serve you better, please kindly offer following information when ordering
1 generator rated voltage, transformation ratio of grounding transformer, resistance value;
2 insulation form of grounding transformer;
3 transformation ratio of current transformer ;
4 color of cabinet, wiring from the top or bottom;
5 time of current flowing-through
6 material and color of box, IP protective grade, colour and installation location.
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