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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City
KYN18A-12 armored removable metal enclosed switchgear
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Overview KYN18A -12 armored removable metal enclosed switchgear (hereinafter referred to as switchgear) has a high technical performance indicators, products in line with GB3906 and DL/T404 standards. It is suitable for 12kV AC three-phase 50Hz single bus power system to receive and distribute electric energy. This product is for indoor use. Features This type of switchgear is armored and removable metal enclosed switchgear. The structure is divided into two parts: cabinet and removable parts (referred to as trolley). The cabinet body of this type of switch cabinet is an assembled structure assembled by steel plate components. The cabinet is divided into main bus room, trolley room, cable room and relay room by grounding steel plate. This type of switch cabinet is equipped with "five prevention" mechanical locking, which can prevent accidents caused by misoperation. Normal use environmental conditions ● Ambient air temperature: upper limit 40 ℃, lower limit 10 ℃. ● Altitude: less than 1000 meters. ● Relative humidity: daily average is not more than 95%, monthly average is not more than 90;15. ● Earthquake intensity: ≤ 8 degrees. ● The surrounding air is not obviously polluted by corrosive gas and water vapor. ● No frequent violent vibration.
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Product Details
The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection, etc. Mainly suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industry and textile, factories and mining enterprises and residential areas, high-rise buildings and other different places. It mainly includes high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic coincidence and segmenter, high-voltage operating mechanism, high-voltage explosion-proof distribution device and high-voltage switch cabinet.
Correct Selection of Breaker Breaking Capacity
On the primary system diagram, the selected circuit breaker, indicating the circuit breaker model, rated working voltage and rated working current, must also be selected for the breaking capacity of the circuit breaker. With user drawings, the breaking capacity of the circuit breaker is not selected, which makes it difficult for the manufacturer to carry out engineering design. The breaking capacity selection should be based on the system short-circuit parameters. If the manufacturer does not understand the system short-circuit parameters, it is difficult to make the correct choice. There are also some user drawings, regardless of the system short-circuit parameters, blindly select high-break parameters, resulting in unnecessary waste of funds. The correct choice of breaking capacity is very important, not only to ensure safe operation, but also to consider reducing product costs.
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