GCS Type LV withdrawable switchgear
Key attributes
| Brand | ROCKWILL |
| Model NO. | GCS Type LV withdrawable switchgear |
| Rated frequency | 50/60Hz |
| Rated insulation voltage | 660(1000)V |
| Rated current Horizontal bus bar | ≤4000A |
| Rated current Vertical bus bar | 1000A |
| Rated voltage of main circuit AC | 380(400)V |
| Rated voltage of auxiliary circuit AC | 220V |
| Rated voltage of auxiliary circuit DC | 110V |
| Series | GCS |
Product descriptions from the supplier
Description ：
GCS LV withdrawable switchgear(hereinafter referred to as device) is developed according to the requirements from industry competent department, numerous electric users and design unit by original state mechanical department, united design group of power department. It conforms to national conditions and with higher technical performance index, and adapts the demands for power market development and able to compete with available imported products. The device passed the authentication jointly presided by two departments in July 1996 in Shanghai. It obtains the recognition and affirmation from manufacturing unit and power consumer construction. The device is applicable to the distribution system of power station, petroleum, chemical engineering, metallurgy, weaving and tall building industries etc. In the places with high automaticity and need computer to joint, such as large-scale power station and petrochemical industry system etc, it is the low voltage complete distribution device used in the generating and power supply system with three-phase AC50(60)Hz, rated working voltage 380V, rated current 4000A and below for distribution, motor central control and reactive power compensation. The device accords with standards IEC439- 1 and GB7251.1.
Main feature :
Main framework adopts 8MF bar steel. Both sides of bar steel is installed with 9.2mm mounting hole with modulus 20mm and 100mm. Inner installation is flexible and easy.
Two types of assembly form design for main framework, full assembly structure and partial (side frame and cross rail) welding structure for user selection.
Each function compartment of device is separated mutually. The compartments are divided into function unit compartment, bus bar compartment and cable compartment. Each one has relative independent function.
Horizontal bus bar adopts cabinet back level placed array pattern for enhancing the capacity of resisting electrodynamic force for bus bar. It is the basic measure for obtaining high short circuit strength capacity for main circuit.
Cable compartment design makes cable outlet and inlet up and down convenient.
Main technical parameters:
Conditions for normal operating environment：
Ambient air temperature: -5℃ ~+40℃ and the average temperature should not exceed +35℃ in 24h.
Relative humidity should not exceed 50% at max temperature. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃ . But in view of the temperature change, it is possible that moderate dews will produce casually.
Altitude above sea level should not exceed 2000M.
Installation gradient not exceed 5° .
Indoor without dust, corrosive gas and rain water attack.
Interior structure Diagram：
Q:What is withdrawable switchgear?
A:Withdrawable switchgear is a type of electrical switchgear that allows the circuit breaker and other components to be easily withdrawn from the main body of the switchgear for maintenance, repair or replacement without having to disconnect the entire power supply system. It enhances the flexibility and maintainability of the power system.
Q:What is LV switchgear?
A：LV switchgear refers to low-voltage switchgear, which is mainly used in power distribution systems to control, protect and isolate electrical circuits at low voltages, typically below 1000V. It includes components like circuit breakers, switches, fuses and relays, and is crucial for the safe and reliable operation of low-voltage electrical systems in various applications such as buildings, factories and data centers.
Related Products
-
Fully air insulated switchgear of 12kV/24kV
-
SF6-free MV air-insulated switchgear
-
GGJ 12kV reactive power cabinet for terminal power supply system
-
HXGN17-12 12kV Box-type metal enclosed ring main unit for urban power grid
-
12kV 15kV 17.5kV 24kV SF₆ gas-free ring main unit/switchboard panel Original Manufacturer
-
11.5kV 13.2kV 14.4kV 17.5kV SF₆ gas-free ring main unit /switchgear source manufacturer
-
10.5kV 11kV 11.5kV 12kV Solid Insulated Ring Main Unit/Switchgear source manufacturer
Related Knowledges
-
Impact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding ElectrodesImpact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding ElectrodesWhen the grounding electrode of an Ultra-High-Voltage Direct Current (UHVDC) transmission system is located close to a renewable energy power station, the return current flowing through the earth can cause a rise in ground potential around the electrode area. This ground potential rise leads to a shift in the neutral-point potential of nearby power transformers, inducing DC bias (or DC offset) in their01/15/2026 -
HECI GCB for Generators – Fast SF6 Circuit Breaker1.Definition and Function1.1 Role of the Generator Circuit BreakerThe Generator Circuit Breaker (GCB) is a controllable disconnect point located between the generator and the step-up transformer, serving as an interface between the generator and the power grid. Its primary functions include isolating generator-side faults and enabling operational control during generator synchronization and grid connection. The operating principle of a GCB is not significantly different from that of a standard c01/06/2026 -
Distribution Equipment Transformer Testing, Inspection, and Maintenance1.Transformer Maintenance and Inspection Open the low-voltage (LV) circuit breaker of the transformer under maintenance, remove the control power fuse, and hang a “Do Not Close” warning sign on the switch handle. Open the high-voltage (HV) circuit breaker of the transformer under maintenance, close the grounding switch, fully discharge the transformer, lock the HV switchgear, and hang a “Do Not Close” warning sign on the switch handle. For dry-type transformer maintenance: first clean the porcel12/25/2025 -
How to Test Insulation Resistance of Distribution TransformersIn practical work, insulation resistance of distribution transformers is generally measured twice: the insulation resistance between thehigh-voltage (HV) windingand thelow-voltage (LV) winding plus the transformer tank, and the insulation resistance between theLV windingand theHV winding plus the transformer tank.If both measurements yield acceptable values, it indicates that the insulation among the HV winding, LV winding, and transformer tank is qualified. If either measurement fails, pairwise12/25/2025 -
Design Principles for Pole-Mounted Distribution TransformersDesign Principles for Pole-Mounted Distribution Transformers(1) Location and Layout PrinciplesPole-mounted transformer platforms should be located near the load center or close to critical loads, following the principle of “small capacity, multiple locations” to facilitate equipment replacement and maintenance. For residential power supply, three-phase transformers may be installed nearby based on current demand and future growth projections.(2) Capacity Selection for Three-Phase Pole-Mounted Tr12/25/2025 -
Transformer Noise Control Solutions for Different Installations1.Noise Mitigation for Ground-Level Independent Transformer RoomsMitigation Strategy:First, conduct a power-off inspection and maintenance of the transformer, including replacing aged insulating oil, checking and tightening all fasteners, and cleaning dust from the unit.Second, reinforce the transformer foundation or install vibration isolation devices—such as rubber pads or spring isolators—selected based on the severity of vibration.Finally, strengthen sound insulation at weak points of the ro12/25/2025
Related Solutions
-
Intelligent Operation Solution for 12kV Vacuum Circuit Breakers: Integrating Real-time Monitoring & Lifetime OptimizationⅠ. Equipment Operation & MaintenanceIntelligent Monitoring System IntegrationMulti-parameter Real-time Monitoring: Embedded sensors (temperature, displacement, Hall effect current sensors) track contact temperature rise, mechanical characteristics (opening/closing speed, overtravel), coil current, and partial discharge signals. Data undergoes preprocessing via edge computing prior to cloud upload.Lifetime Prediction Model: Dynamically evaluates remaining lifespan using electrical wear data06/10/2025 -
SF6 Circuit Breaker Solutions for Outdoor Installation (Anti-Pollution & Seismic Resistance)I.Core Challenges in Outdoor InstallationIn high-voltage transmission and distribution systems, SF6 circuit breakers are exposed to complex outdoor environments for extended periods, facing the following critical issues:Pollution & Insulation DegradationDust, salt fog, and industrial pollutants in outdoor environments easily adhere to equipment surfaces. In coastal or industrial areas, pollution levels may reach Class IV, resulting in insufficient creepage distance and triggering flasho05/12/2025 -
12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact Design12kV Indoor Vacuum Circuit Breaker Southeast Asia Solution: Anti-Corrosion Compact DesignⅠ. Executive SummarySoutheast Asia faces rapidly growing electricity demand alongside environmental challenges including high temperatures, humidity, salt spray corrosion, and grid instability. This solution recommends Solid Insulated Pole-Mounted Vacuum Circuit Breakers (VCB) featuring high reliability, compact design, and smart monitoring. Tailored for tropical climates and industrial scenarios, it06/10/2025
