Indoor 40.5 kV armoured withdrawable switchgear up to 3150 A / 31.5 kA — floor-rolling breaker truck, composite-insulated vacuum breakers with 10,000-operation life, forced mechanical five-prevention interlocks.
The KYN61-40.5 armoured withdrawable AC metal-enclosed switchgear is an indoor complete distribution assembly for three-phase 50 Hz, 40.5 kV systems. Serving power plants, substations and industrial enterprises for receiving and distributing power, it provides circuit control, protection and monitoring, and also suits frequently operated installations.
GB/T 3906-2020 — 3.6–40.5 kV AC metal-enclosed switchgear and controlgear
IEC 60298-1990 — AC metal-enclosed switchgear and controlgear above 1 kV up to 52 kV
GB/T 11022-2020 — Common technical requirements for HV switchgear and controlgear
Assembled cabinet structure; breaker truck of floor-rolling type
New composite-insulated vacuum breakers — fully interchangeable and easy to replace
Lead-screw propulsion in the truck frame moves the breaker effortlessly and prevents damage from mal-operation
All operations performed with the door closed
Forced mechanical interlocking between main switch, truck and door fulfils the complete five-prevention功能
Spacious cable compartment connects multiple cables; fast earthing switch for earthing and short-circuit making
Enclosure IP4X; IP2X with the truck-compartment door open
Ambient −10 °C … +40 °C, 24 h average ≤ 35 °C; altitude ≤ 2000 m
Daily RH ≤ 95 %, monthly ≤ 90 %; vapour pressure ≤ 2.2 kPa daily / 1.8 kPa monthly
Seismic intensity ≤ 8; site free of fire/explosion hazard, heavy pollution, chemical corrosion and severe vibration
Electrical-room height ≥ 4500 mm; rear clearance to wall ≥ 1500 mm
Foundation flatness ≤ 1 mm/m²; embedded channel ≤ 3 mm above floor; fix by bolts or welding
Cabinet weight ≈ 1800 kg; operating corridor ≥ 3000 mm (single row) / ≥ 4000 mm (double row face-to-face)
Specifications are representative and may vary by configuration and region. Final figures are confirmed on the project datasheet.
Tell us about your load profile and site conditions — our engineers will help you size the right HiStore configuration.
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