GIS SF6 Gas Insulated High Current Compact Metal-Enclosed MV Switchgear (1250A-2500A 25kA/31.5kA/40kA)

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Resumo do Produto

The High Current Series SF6 Gas Insulated Metal-Enclosed Switchgear is designed for medium-voltage power distribution systems from 12kV to 36kV, offering rated currents up to 2500A and short-circuit breaking capacities up to 25kA/31.5kA/40kA.

All live high-voltage components, including copper busbars, vacuum circuit breakers, three-position disconnecting/earthing switches and cable connections, are fully enclosed within a hermetically sealed stainless-steel gas tank filled with SF6 insulating gas. The fully insulated and sealed-for-life design ensures exceptional operational reliability, enhanced personnel safety and minimal maintenance throughout the service life of the equipment.

Combining high current carrying capability, excellent short-circuit performance, compact dimensions and flexible modular configurations, the switchgear is ideally suited for utility substations, industrial power distribution systems, renewable energy projects, urban rail transit networks, petrochemical facilities, mining operations, marine and offshore installations, power generation plants and other critical infrastructure applications.

Designed to perform reliably under harsh environmental conditions, the switchgear is suitable for high-altitude regions, coastal areas, high-humidity environments, heavily polluted industrial sites and other demanding operating conditions.

Available Ratings

Rated Voltage: 12kV / 24kV / 36kV

Rated Current: 1250A / 2000A / 2500A

Short-Circuit Breaking Current: 25kA / 31.5kA / 40kA

Main Features

◆ Fully Insulated and Sealed-for-Life Design.

All primary components are permanently sealed inside a stainless-steel gas tank, providing complete protection against dust, humidity, condensation, salt contamination, insects and other environmental influences while significantly reducing maintenance requirements.

◆ High Current Carrying Capability.

Designed for heavy-duty power distribution applications, the switchgear supports continuous currents up to 2500A. Optimized conductor design and high-quality contact systems ensure excellent thermal performance, low power losses and long-term operational stability.

◆ Excellent Short-Circuit Performance

Equipped with vacuum interruption technology, the switchgear provides reliable fault interruption up to 40kA, ensuring maximum network protection and operational security under severe fault conditions.

◆ Compact and Space-Saving Construction.

The combination of SF6 gas insulation and an optimized internal layout enables a significantly reduced footprint compared with conventional air-insulated switchgear, making it ideal for installations where space is limited.

◆ Sealed Vacuum Interrupter Technology.

The vacuum interrupter is encapsulated within an epoxy resin pole assembly, providing a compact structure, improved mechanical strength, enhanced operational reliability and simplified maintenance.

◆ Flexible Modular Expansion.

Side busbar extension and top busbar extension options allow easy future expansion and convenient on-site installation, offering maximum flexibility for evolving network requirements.

◆ External Operating Mechanisms.

All operating mechanisms are installed outside the gas tank for easy inspection, wiring and maintenance while maintaining complete isolation of the primary circuit.

◆ Comprehensive Mechanical Interlocking System.

Integrated interlocking arrangements prevent incorrect operations and ensure safe switching sequences, enhancing operator safety and system reliability.

◆ Suitable for Harsh Environments.

Engineered for reliable operation in high-altitude regions, coastal and offshore installations, high-humidity environments, dusty areas, heavily polluted industrial sites and other challenging service conditions.

◆ IEC Compliant Design.

Designed and manufactured in accordance with IEC 62271-1, IEC 62271-100, IEC 62271-102, IEC 62271-200 and IEC 62271-201 standards, ensuring internationally recognized safety, performance and reliability.

Parâmetros técnicos

Main Structure

  1. Top or side expansion main busbar:Rated current:1250A,2500A.
  2. 2. Independent busbar compartment: suitable for single or double gas compartment.
  3. Three-position isolating switch and mechanism:Manually or electrically operation.
  4. Circuit breaker and mechanism:Circuit breaker adopts a spring mechanism with automatic reclosing, and store energy manually or electrically.
  5. Cable terminal and arrester installatior:C-type bushing, with 1 set cable+surge arrester(optional) or 2 sets cable+surge arrester(optional).
  6. Cable compartment:meet the requirements of varies series of cable install.
  7. Cable room pressure relief channel.
  8. Gas compartment pressure relief channel.
  9. Circuit breaker compartment.
  10. Compartment bushing.
  11. Nameplate.

Panel Appearance and Size Diagram

600mm(W)*1300mm(D)

12kV, 1250A, 25kA/31.5kA

24kV, 1250A, 25kA/31.5kA

40.5kV, 1250A, 25kA/31.5kA

800mm(W)*1300mm(D)

40.5kV, 1250A, 40kA

800mm(W)*1700mm(D) (Type A)

12kV, 2000A/2500A, 25kA/31.5kA

24kV, 2000A/2500A, 25kA/31.5kA

40.5kV, 2000A/2500A, 25kA/31.5kA/40kA

800mm(W)*1700mm(D) (Type B)

24kV, 2000A/2500A, 25kA/31.5kA

40.5kV, 2000A/2500A, 25kA/31.5kA/40kA

 

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