YSR6-12/24/40.5 series of SF6 Gas Insulated Metal Enclosed switchgear (c-GlS) is independently developed by our company with sulfur hexafluoride gas as the insulating medium and can be applied in primary or secondary power distribution at a same time. lt is a new-generation medium-voltage whole-set switchgear with vacuum arc extinguishing technology, APG solid sealed technology, gas insulation technology and interface insulation technology. The product has passed the type test verification and new product technology appraisal by China’s national authoritative testing institution, The product can be widely used in various important power distribution and substation systems of China’s national economy, such as power distribution and substation network, urban power supply network, large industrial and mining enterprises, petrochemical, metallurgy, urban rail transit and so on.
The product has a modular design and can be combined according to various design schemes. The product has a sealed pressure system and all high-voltage live parts of its main circuit are sealed in the stainless steel gas tank without influence from environments. It runs reliably, is compact with little space occupied and free from maintenance.
Item Unit Parameter Rated voltage kV 12 24 40.5 Rated frequency Hz 50 Rated current A 630/1250/2500/3150/4000/630/1250/2500 Power frequency withstand voltage (phase-to-phase and phase-to-ground) kV 42 65 95 Power frequency withstand voltage (insulation breaking) kV 48 79 118 Lightning impulse withstand voltage (phase-to-phase and phase-to-ground) kV 75 125 185 Lightning impulse withstand voltage (insulation breaking) kV 85 145 215 Rated power frequency withstand voltage of auxiliary circuit kV 2 Rated instantaneous withstand current kA 25/31.5/40 Rated short-circuit period s 3 Rated peak withstand current kA 63/80/100 63/80/100 50/63/80 Rated short-circuit breaking current of circuit breaker kA 25/31.5/40 25/31.5/40 25/31.5 Rated short-circuit closing current of circuit breaker (peak) kA 63/80/100 63/80/100 50/63/80 Rated cable charge breaking current A 25 Rated operating sequence O-0.3s-CO-3min-CO Insulation gas SF6 Mechanical life Time 10000 Three-position switch Time 5000 Rated charge pressure (abs, 20°C) Mpa 0.14 Minimum charge pressure (abs, 20°C) Mpa 0.12 Sealed enclosure Grade IP67 Switch shell Grade UP4X Annual relative leak rate of dry air %/year ≤0.1 Rated power voltage of auxiliary circuit V DC48/110/220 AC220
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E-mail: sales@vcbbreaker.com
Address: 66 Punan Road, Yueqing Economic Development Zone, Zhejiang, China
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