Products Description
Indoor Neutral Grounding Resistor is a core protective device dedicated to neutral point grounding in power systems. It is generally installed between the neutral points of large electrical equipment such as generators, transformers and motors and the earth. Made of high-performance resistance alloy materials, the product delivers excellent heat resistance, corrosion resistance and stable resistivity. It can effectively limit fault current during single-phase ground faults and protect equipment insulation from breakdown.
With a compact structure and simple installation, Indoor Neutral Grounding Resistor is suitable for enclosed spaces such as indoor switchgear cabinets and generator outgoing cabinets. It is widely used in thermal power generation, hydropower generation, petrochemical, metallurgy, rail transit and other industries, acting as key equipment for the safe and stable operation of power systems.
Product Image
Product Advantages
Stable Resistance Value
Adopting premium resistance alloy materials, the product maintains minimal resistance deviation during long-term operation, ensuring consistent and reliable grounding protection performance.
Superior Temperature Resistance
The resistance element boasts outstanding high-temperature endurance and is not easily damaged under short-time fault current impact, guaranteeing safe system operation.
Compact Structure
The integrated design features small overall dimensions, suitable for installation in confined spaces such as indoor switchgears without occupying extra cabinet space.
Easy Maintenance
Modular structural design facilitates intuitive daily inspection. Faults can be quickly located and parts replaced, minimizing power outage duration.
Application Scope
Thermal Power Generation:Applied to neutral point resistance grounding systems of generators to limit single-phase ground fault current and protect the insulation of stator windings.
Hydropower Generation: Suitable for neutral point grounding circuits of hydroelectric generating units. It adapts to the humid operating environment of hydropower stations with stable and reliable performance.
Petrochemical & Metallurgy: Used for neutral point grounding protection of transformers, motors and other equipment. Its corrosion-resistant design adapts to harsh working conditions in chemical and metallurgical industries.
Rail Transit: Applied to neutral point grounding of power supply systems for subways and light rails, ensuring safe and stable operation of traction substations and power supply networks.
Relevant Data
| Parameter | Description | Example |
| System Voltage Class | Determines the insulation level. Common specifications cover 6 kV, 10 kV and 35 kV systems. | 10 kV system |
| Rated Current / Resistance Value | Determines the current limiting capacity. Standard available ratings: 10 A, 20 A, 50 A, 100 A. | 10 kV / 100 A / 57.7 Ω |
| Current Withstand Duration | A core indicator for 10S alloy materials, representing the maximum sustainable current duration under fault conditions. | 10 S, 30 S, 60 S |
| Material & Structure | This model is equipped with 10S alloy resistance plates. It delivers high temperature resistance, outstanding operational stability and superior insulation performance, which makes it the mainstream choice for applications. | Alloy resistance plates + post insulators |
| Protection Class / Installation Environment | Suitable for indoor or outdoor installation; defines requirements for rainproof, dustproof and anti-corrosion properties. | Indoor IP20 / Outdoor IP54 |
Factory Environment
FAQ
Q:How to select the resistance value of Indoor Neutral Grounding Resistor?
A:The selection depends on system capacitive current and protection requirements. We provide professional selection and calculation services to help you achieve accurate matching.
Q:Can Indoor Neutral Grounding Resistor be used outdoors?
A:This model is specially designed for indoor use. If outdoor deployment is required, we provide dedicated outdoor type products with higher protection levels.
Q:Will the resistor burn out?
A:With proper model selection, it can withstand fault current impact for the specified duration. Damage only occurs under over-limit operation. It is recommended to use it together with supporting protection devices.
Why Choose Us
Rich Industry Experience
We have focused on the R&D and production of neutral point grounding resistors for years, serving a large number of power and industrial clients with solid technical accumulation.
Powerful Customization Capacity
Full-customization services are available from resistance value design to structural configuration, meeting personalized demands for different voltage levels and grounding modes.
Well-Rounded Services
We provide one-stop services including model selection guidance, installation recommendations and operational follow-up with prompt response, giving you complete peace of mind.
Hot Tags: indoor neutral grounding resistor, China indoor neutral grounding resistor manufacturers, suppliers, factory, Alloy Neutral Grounding Resistor, Distribution Network Grounding Resistor Cabinet, Generator Neutral Grounding Resistor Cabinet, Transformer Neutral Grounding Resistor, Neutral Grounding Resistor Cabinet, neutral grounding resistor
