Industrial Grade Neutral Grounding Resistors

Industrial Grade
Neutral Grounding Resistors

Secure your power distribution systems with high-performance NGRs designed for global utilities and industrial plants. We offer customizable specifications, rigorous testing, and reliable FOB/CIF shipping schedules.

Shanghai Powers Neutral Grounding Resistor Unit

What is a Neutral Grounding Resistor?

A Neutral Grounding Resistor (NGR) is a critical electrical safety component installed between the neutral point of a transformer (or generator) and the ground. Its primary function is to limit the current flowing through the neutral point during a ground fault event to a safe, controlled level.

By controlling fault current, our Neutral Grounding Resistor systems prevent equipment damage, reduce the risk of arc flash hazards, and allow for continuity of service in critical industrial applications. They are essential for medium to high-voltage networks found in power plants, substations, and heavy manufacturing facilities.

Manufacturing & Quality Assurance

Watch our production standards and final assembly process.

Technical Specifications

System Voltage 0.38kV up to 110kV
Rated Current 5A - 5000A (Customizable)
Enclosure Material Stainless Steel / Hot-dip Galvanized
Protection Class IP23 - IP54 (Outdoor Rated)
  • IEEE-32 Compliance for extreme heat handling
  • Stable resistance values over wide temperature ranges
  • Customized CT and Heater integration available

Looking for detailed diagrams or datasheets? Visit our Product Page →

Trusted by Global Infrastructure Projects

★★★★★

"We sourced 15 units of 11kV NGRs for a substation upgrade in Southeast Asia. The build quality matched our strict grid requirements, and the documentation was perfect for inspection."

— Project Manager, Regional Utility Co.
★★★★★

"Shanghai Powers provided a very competitive lead time compared to European suppliers. The stainless steel enclosures have held up well in our coastal facility."

— Senior Buyer, Heavy Industry EPC
★★★★★

"Reliable partner for high-voltage resistors. Their engineering team helped us customize the current ratings to fit our legacy systems. Consistent quality."

— Technical Director, Mining Solutions

Wholesale & Supply Chain FAQ

What is the typical lead time for bulk NGR orders?

Standard manufacturing time is 4-6 weeks depending on the complexity and quantity. For urgent project timelines, please consult our team regarding expedited production slots.

Do you offer customization for specific voltage and resistance requirements?

Yes, we specialize in tailor-made solutions. We can manufacture NGRs for systems ranging from 0.38kV to 110kV with custom resistance values, current ratings, and enclosure protection levels (IP23-IP54).

What certifications do your products hold?

Our manufacturing process adheres to ISO 9001 standards. Our resistors are designed to comply with major international standards such as IEEE-32 and IEC 60076, ensuring safety and reliability.

What are the shipping terms?

We typically operate on FOB Shanghai terms but can arrange CIF or DDP upon request to major global ports. All units are crated in export-grade packaging to prevent transit damage.

Is there a Minimum Order Quantity (MOQ)?

Our MOQ is 1 unit. We support both single-unit orders for specific project needs and bulk orders for distribution or large-scale infrastructure development.

Do you provide technical drawings and manuals?

Yes, every order includes a comprehensive documentation package, including GA drawings, electrical schematics, and operation/maintenance manuals in English.

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