Our Air Insulated Medium Voltage Switchgears (AIS) offer reliable, safe, and flexible solutions for power distribution systems. Engineered in compliance with IEC 62271-200, these systems combine robust performance with easy maintenance and environmental friendliness.
Key Features:
Rated Voltage: 12 / 24 / 36 / 40.5 kV
Rated Current: 630 A – 4000 A (depending on configuration)
Short-Circuit Withstand: 20 – 40 kA / 1–3 s
Insulation Medium: Air (air-insulated)
Service Continuity: LSC2B
Internal Arc Classification: IAC AFLR, up to 40 kA / 1 s
Partition Class: Metal-clad (PM)
Advantages:
Easy access and low maintenance
Modular and extendable design
High safety and operational reliability
Eco-friendly, SF6-free insulation
Suitable for wide application range
Applications:
Urban and rural power distribution
Industrial and infrastructure facilities
Power generation stations
Renewable energy systems
Railways, airports, seaports, and more
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Our SF6 gas-insulated Ring Main Units (RMUs) are compact, reliable, and maintenance-free solutions designed for medium voltage distribution networks. Fully compliant with IEC 62271-200 and IEC 62271-105, they provide safe and efficient operation in 12, 24, and 36 kV systems.
Key Features:
Rated Voltage: 12 / 24 / 36 kV
Rated Current: 630 A (circuit breaker), 125 A (fused switch)
Short-Circuit Withstand: 20-25 kA / 1s
Insulation Medium: Fully SF6 gas insulated
Protection Class: IP67 (gas tank), IP4X (general enclosure)
Service Continuity: LSC2A
Internal Arc Classification: IAC A-FLR, up to 20 kA / 1s
Advantages:
Compact footprint and space-saving design
Maintenance-free due to sealed SF6 insulation
Fast installation and long service life
Wide range of modular options: breaker, load break switch, fused switch, etc.
Integrated mechanical interlocks for operator safety
Applications:
Urban and rural distribution networks
Industrial facilities
LV/MV transformer substations
Renewable energy integration points
IEC 62271-200 Compliant | 12–40.5 kV
Our air-insulated Metal Clad MV switchgears offer high safety, continuous service, and easy maintenance. Each functional compartment is fully segregated with metal partitions, and the withdrawable circuit breaker ensures physical isolation during maintenance without interrupting power.
Technical Features:
Voltage: 12–40.5 kV | Current: 630–4000 A
Construction: Fully metal-clad (PM), LSC2B
Internal arc withstand: IAC AFLR, 31.5–40 kA / 1s
Breaker type: Vacuum or SF6, withdrawable
Advantages:
Maintenance without power interruption
High operator safety
Modular and expandable
Full SCADA and protection relay compatibility
Applications:
Power substations, industrial plants, infrastructure, renewable energy systems