DES(X)1-12 AC high-voltage isolating switch
Mini-12 series box-type fixed AC metal-enclosed switchgear (hereinafter referred to as mini cabinet) is a new generation of compact and miniaturized vacuum switchgear. It is suitable for power plants, substations, switching stations and power supply and distribution systems of industrial and mining enterprises. It has the functions of receiving and distributing electric energy in 3.6 ~ 12kV power supply network and controlling, protecting and monitoring the circuit. The mini cabinet has perfect five prevention measures, which can effectively ensure the safety of operation, maintenance and overhaul.
Mini cabinet can be equipped with VEM1-12 type vacuum circuit breaker, DES1-12 type three-position upper isolating switch and DEX1-12 type two-position lower isolating switch developed by our company. The secondary circuit can also be equipped with our company's WXH-8B intelligent protection device.
Because the mini cabinet has the same external dimensions and bus arrangement as the ring network cabinet, it can be directly spliced and combined with the ring network cabinet for schemes such as incoming lines and bus couplers.
- Product Description
- Technical features
- Main technical parameters
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- Commodity name: DES(X)1-12 AC high-voltage isolating switch
Mini-12 series box-type fixed AC metal-enclosed switchgear (hereinafter referred to as mini cabinet) is a new generation of compact and miniaturized vacuum switchgear. It is suitable for power plants, substations, switching stations and power supply and distribution systems of industrial and mining enterprises. It has the functions of receiving and distributing electric energy in 3.6 ~ 12kV power supply network and controlling, protecting and monitoring the circuit. The mini cabinet has perfect five prevention measures, which can effectively ensure the safety of operation, maintenance and overhaul.
Mini cabinet can be equipped with VEM1-12 type vacuum circuit breaker, DES1-12 type three-position upper isolating switch and DEX1-12 type two-position lower isolating switch developed by our company. The secondary circuit can also be equipped with our company's WXH-8B intelligent protection device.
Because the mini cabinet has the same external dimensions and bus arrangement as the ring network cabinet, it can be directly spliced and combined with the ring network cabinet for schemes such as incoming lines and bus couplers. -
Safe and reliable
- Mini cabinet design can be installed on the lower isolation switch. The upper isolating switch has three stations of closing, isolation and grounding, while the lower isolating switch has two stations of closing and isolation, and has obvious visible fracture, which is safe to operate and convenient to observe.
- A unique pressure relief plate is designed behind the cabinet to ensure safe operation
- With perfect mechanical interlock, can effectively prevent misoperation.
Long life, maintenance free
The primary circuit is fixed and installed, reducing the connection link. Vacuum circuit breaker adopts spring operating mechanism with solid sealing pole technology, long life, basically maintenance-free
Environmental protection
The main switch in the Mini cabinet adopts a vacuum interrupter. The insulating materials in the cabinet are environmentally friendly materials that are harmless to the environment. The fully enclosed metal shell is isolated from external electromagnetic radiation. It is an ideal environmentally friendly product.The busbar is longitudinally arranged at the rear, middle and front, and can be directly spliced with the ring network cabinet with built-in load switch and combined electrical appliance without transition cabinet.
Three unique patented technologies
- ZL 03 2 38364.9 three-position isolating switch
- ZL 03 2 38361.4 fixed vacuum circuit breaker cabinet
- Intermediate drive mechanism of ZL 02 2 19344.8 longitudinal circuit breaker
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Serial Number Name Unit Numerical 1 Rated voltage kV 12 42/48 75/85 2 Rated insulation level lmin power frequency withstand voltage: phase-to-phase, relative ground/fracture Lightning impulse withstand voltage: phase-to-phase, relative to ground/fracture 3 Rated frequency Hz 50 4 Rated current Main bus shunt bus A 800、 1000. 1250 630、 1000、 1250 5 Rated short-circuit breaking current kA 31.5 31.5 80 80 27.4 6 Rated short-time withstand current 7 Rated short-circuit closing current (peak) 8 Rated peak withstand current 9 Rated out-of-phase grounding fault breaking current 10 Rated short circuit duration (main circuit) S 4 11 Rated short circuit duration (earth loop) S 2 12 Rated operating sequence O-03s-CO-180s-CO 13 Protection level IP4X 14 Mechanical life Times 10000-30000 15 Rated power supply voltage of operating mechanism and auxiliary circuit V AC220/DC220 16 Rated power frequency of operating mechanism and auxiliary circuit Hz 50 17 Loop resistance μΩ < 120 18 Overall dimension mm 600x900x2200 ☆ * The outer size of the cabinet body when the isolating switch is put on and off is 650 x 1000 x 2200
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No. 41, Huli Industrial Park, Meixi Road, Huandong Sea Area, Tong 'an District, Xiamen City
