Explore our full range of high- and low-voltage electrical equipment, including switchgear,
transformers,and prefabricated substations designed for reliability and safety.
All metal assembly, modular assembly structure;
The cabinet is made of imported aluminum zinc coated steel sheet, processed by FMS flexible processing system, using advanced multiple folding technology, connected with rivet nuts and high-strength bolts, with high precision, corrosion resistance, light
Can be equipped with ZN63A-12 (VS1) series or imported VD4 series vacuum circuit breakers, with wide applicability, high reliability, and maintenance free.
The handcart is equipped with working and testing devices, with positioning and display devices at each position, ensuring safety and reliability
Vehicles of the same specification can be freely interchanged, with strong interchangeability;
Transporting handcarts by dedicated transport vehicles, with easy and flexible operation;
The cable room can accommodate up to 9 single core cables;
Reliable mechanical and electrical interlocking devices fully meet the "five prevention" requirements;
The high-pressure chamber has pressure relief channels to ensure personal safety;
The face door is equipped with an observation window, which can observe the working status of indoor components.
Product Description：
KYN28-12 indoor AC metal armored withdrawable switchgear is used for power plant transmission, power system, and industrial and mining enterprise substation receiving, distribution, control, and protection purposes. It can also be used for frequent starting of high-voltage motors, meeting the “five prevention” interlocking requirements. The switchgear can be equipped with ABB’s VD4 vacuum circuit breaker or domestic VS1 vacuum circuit breaker, making it a high-performance distribution device with flexible scheme combination, compact structure, safety and reliability, easy maintenance, impact resistance, corrosion resistance, and other advantages.
Application field：
The KYN28-12 indoor AC metal armored withdrawable switchgear is suitable for AC 50Hz, 3-24kV power systems and is widely used in power plants, substations, switch stations, urban distribution, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, sports venues, railways, tunnels and other places to achieve control, protection, and monitoring. The circuit breaker can also be equipped with a domestically produced VS1 vacuum circuit breaker, which is actually a high-performance distribution device. It has the advantages of flexible scheme combination, compact structure, safety and reliability, easy maintenance, impact resistance, corrosion resistance, etc.
Technical Parameter：
| project | unit | parameter |
| rated voltage | kV | 6.3 12 24 |
| rated current | A | 630 1250 1600 2000 2500 3150 |
| rated frequency | Hz | 50 60 |
| rated current of switchgear | A | 630 1250 1600 2000 2500 3150 |
| rated current of circuit breaker | A | 630 1250 1600 2000 2500 3150 |
| rated short-time withstand current | kA/4S | 16 20 25 31.5 40 |
| rated peak withstand current | kA | 40 50 63 80 100 |
| rated short-circuit breaking current | kA | 16 20 25 31.5 40 |
| ated short-circuit closing current | kA | 40 50 63 80 100 |
| ated insulation level, power frequency withstand voltage | kV/1min | phase phase ground 42 fracture (isolation) 48 |
| lightning impulse withstand voltage | kV/1min | phase phase ground 75 fracture (isolation) 85 |
| service life of circuit breaker | 次 | 10000 |
| protection level | IP4X enclosure, IP2X when compartment and circuit breaker room doors are open | |
| environmental temperature and humidity | -25 ° C~45 ° C, daily average less than 95%, monthly average less than 90% | |
| altitude | Not exceeding 1000m (beyond 1000m to be negotiated between the user and the manufacturer) |
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