Product Introduction
Single Door Resistor Cabinets are critical protection devices in power systems, specifically designed to meet the safety requirements of grids of varying voltage levels and industrial distribution systems. By connecting a resistor of a specific resistance value at the neutral point, they effectively limit single-phase ground fault current, suppress transient overvoltages, reduce the probability of arc restrike, and enhance relay protection sensitivity. Their compact single-door design and easy operation make them suitable for indoor installation, particularly where space utilization is critical.
Product Picture
Product Features and Core Advantages
Compact Structure, Space-Saving
The Single Door Resistor Cabinet features a narrow profile, making it ideal for installation in confined spaces-particularly renovation projects or distribution rooms with limited floor area.
Easy Maintenance, Efficient Operation
The single-door design provides full front access, with all terminal blocks, resistor units, and protective devices mounted at the front. This enables inspection, replacement, and commissioning without removing side panels, significantly boosting maintenance efficiency.
Safety, Reliability, and Comprehensive Protection
The cabinet door incorporates a safety interlock that automatically cuts power when opened, eliminating the risk of electric shock during operation. Internal resistor elements are secured with insulated brackets to prevent short circuits.
High-Quality Materials, Durability
Resistor strips and sheets are crafted from high-temperature, oxidation-resistant alloys for long-term reliability. The cabinet body is constructed of premium cold-rolled steel with a spray-coated finish for corrosion and rust resistance, ensuring suitability for harsh industrial environments.
production equipment
Functional Applications
Motor Soft Start
Single Door Resistor Cabinets limit starting current, reduce grid impact, and extend motor lifespan.
Speed Control
When paired with wound-rotor motors, they enable multi-stage speed regulation, making them ideal for industries such as textiles and metallurgy.
Energy Dissipation Braking
They absorb inverter feedback energy, prevent overvoltage faults, and ensure stable system operation.
About the factory
FAQ
Q: Can I visit your factory?
A: We welcome scheduled factory tours. During your visit, we'll showcase our production processes, testing facilities, and share successful case studies.
Q: Do you have a high repurchase rate among existing customers?
A: Our repurchase rate exceeds 65%. For example, a power company has been purchasing from us for five consecutive years, ordering over 200 units annually, and has reported zero returns due to quality issues.
Q: What are the specific energy-saving effects?
A: Compared to traditional resistor cabinets, our products reduce no-load losses by 30% and improve full-load efficiency by 15%. For a 1,000 kVA system, this results in annual electricity cost savings of approximately 23,000 yuan.
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