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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City
KYN1-12 armored removable metal enclosed switchgear
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Overview KYNI-i2 armored removable metal-enclosed switchgear (hereinafter referred to as switchgear) is designed according to the national standard GB3906 "3-35KV indoor AC metal-enclosed switchgear", in line with the International Electrotechnical Commission IEC298 "AC metal-enclosed switchgear and control equipment" standard, with "five-proof" locking function. This product has absorbed the advantages of similar products at home and abroad, and has the characteristics of compact structure, safety and reliability, convenient maintenance and excellent performance. This product is suitable for rated voltage 3.6-12KV, 50Hz, rated current 630-3150A three-phase AC single bus and single bus section system, as the acceptance and distribution of electrical energy. It can meet the use requirements of various types of power plants, substations (by) and industrial and mining enterprises. Features The KYNi-I2 switch cabinet is composed of four parts: front cabinet, rear cabinet, relay instrument room and handcart. Each chamber is separated by a grounded metal partition, and its protection degree is IP2X. The circuit breaker handcart adopts vacuum circuit breaker and is equipped with two different operating mechanisms of CT or CD. Handcart also has voltage transformer handcart, lightning arrester handcart, isolation handcart, etc. The handcart is equipped with an advanced propulsion mechanism, which is light and flexible, the positioning device is safe and reliable, and the cabinet door is integrated with the handcart panel. The relay instrument room is assembled and fixed on the cabinet body. The front door can be equipped with instruments, signal relays, operation switches, etc. The inner door and relay movable board can be equipped with watt-hour meters or relays. The secondary cable is led from the relay instrument room along the left wall of the handcart room. The product has five anti-function, safe and reliable operation, easy maintenance. Normal use environmental conditions ● Ambient temperature: upper limit +40 ℃, lower limit -10 ℃. ● Relative humidity: the daily average value is not more than 95%, and the monthly average value is not more than 90%. ● Altitude: less than 1000 meters. ● Earthquake intensity: less than 8 degrees. ● There is no fire, explosion hazard, serious pollution, chemical corrosion and severe 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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