Compact Switchgear Unit

Compact Switchgear Unit

Details
Rated Voltage: HV 10kV/35kV; LV 400V/690V
Rated Current: 630A/1250A/2000A
Short-Circuit Breaking Capacity: 25kA/31.5kA
Protection Level: IP44/IP54/IP65
Frequency: 50Hz/60Hz
Enclosure Type: Compact sealed metal cabinet
Control Mode: Local/Remote control
Category
Ring Main Unit
 
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Description
Technical Parameters

Compact Switchgear Unit

 

Product Introduction

Automatic Ring Main Unit

A compact switchgear unit is a high-efficiency, space-optimized power distribution solution designed for modern power projects with tight installation constraints. Unlike conventional bulky switchgear that requires large floor space, this integrated unit consolidates switching, protection and control functions inside one solid enclosure. It maintains full operational safety and stability while greatly reducing overall footprint. The unit supports precise power distribution management and fast electrical fault cutoff, and can be seamlessly integrated into new or existing power grids. Widely used in urban power networks, commercial buildings, industrial facilities and renewable energy stations, it is a practical upgrade solution for projects pursuing compact layout and long-term reliable operation.

Core Product Advantages

 

Compact Switchgear Space

Space-Saving Miniaturized Structure

Every internal component, including circuit breakers, busbars and control modules, is precisely arranged through optimized structural layout. The overall cabinet size is significantly smaller than traditional switchgear. This compact design enables flexible installation in narrow substations, building basements and crowded industrial sites, solving the common pain point of limited construction space.

 
Compact Switchgear Structure

Safe and Durable Enclosure Structure

The switchgear adopts high-grade corrosion-resistant metal shell with strong mechanical strength and reliable insulation performance. Its standardized sealed IP structure effectively blocks dust, moisture and external contaminants, preventing internal component aging and corrosion. The rigid frame resists vibration and minor impact, ensuring stable performance during long-term high-load industrial operation.

 
Reasonable Compact Switchgear

Reasonable Internal Layout & Low Maintenance Cost

The interior adopts independent high and low voltage compartment separation to avoid electrical interference and potential safety risks. Standard internal wiring shortens cable layout length and reduces heat accumulation, lowering the probability of short-circuit and overheating faults. Core components are well-organized and easy to access, allowing routine inspection and simple maintenance without complicated disassembly.

 
Compact Switchgear design

Modular and Highly Compatible Design

Equipped with integrated heat dissipation components, the unit maintains stable heat circulation during continuous operation. Its flexible modular structure adapts to fluctuating power loads and diverse operational requirements. Fully compliant with international standards, the switchgear features strong compatibility with most existing grid systems, ensuring consistent and reliable performance across different application scenarios.

 

Application Environment

Success Case

This compact switchgear is suitable for indoor and semi-outdoor working environments with high requirements for safety and space efficiency. It adapts well to enclosed distribution rooms, humid working areas and densely arranged power stations. It is widely deployed in urban distribution projects, commercial complexes, industrial parks and new energy power plants, ideal for space-limited sites that require long-term stable and low-failure power distribution.

  • Enclosed Distribution Room
    Kechang
    Enclosed Distribution Room
  • Humid Working Area Switchgear
    Kechang
    Humid Working Area
  • Switchgear Dense Power Station
    Kechang
    Dense Power Station
  • New Energy Industrial Park Switchgear
    Kechang
    New Energy & Industrial Park

 

Product Specifications

 

Project Unit Circuit Breaker Load Switch Load Switch - Fuse Combinations
Rated Voltage kV 12 12 12
Rated Frequency A 630/1250 630 125
Rated Current Hz 50 50 50
Rated Insulation Level 1 min Power Frequency Withstand Voltage (Interphase and Phase to Ground) kV 12 42 42
1 min Power Frequency Withstand Voltage (Isolating Distance) 48 48 48
Rated Power-frequency Withstand Voltage (Control and Auxiliary Circuit) 2 2 2
Rated Lightning Impulse (between Phases, to Earth) 75 75 75
Rated Lightning Impulse (Across the Isolating Diatance) 85 85 85
Rated Short-time Breaking Current kA 20/258 - 31.5
Rated Short-time Making Current kA 50/63 50 80
Rated Short-time Withstand Current kA 20/258 20 -
Rated Duration of Short-circuit s 4 4 -
Rated Peak Withstand Current kA 50/63 50 -
Take-over Current/ Transfer Current A - - 3150
Rated Operating Sequence - 0-0.3s-C0-180S-C0
Rated Filling Pressure (Gauge Pressure When Temperature is 20℃) Mpa 0.02
Minimum Functional Pressure (Gauge Pressure When Temperature is 20℃) Mpa 0
Pressure Relief Device Release Pressure (Gauge Pressure When Temperature is 20℃) Mpa 0.16
Yearly Gas Leakage Rate - ≤0.01%
Mechanical Life Times 10000
Main Loop Resistance μΩ ≤150

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