KYN28-24(Z) series alternating-current metal-clad and metal-enclosed with drawable switchgear is a complete set of power distribution unit of three-phase single busbar and single busbare bus section system of 20kV and A50(60)Hz
This switchgear is mainly applicable to power plants, power transmitting of middle and small sized generators,distribution of industrial and mining enterprises, electricity receiving and transtmitting of secondary substations,as well as starting of large high-voltage motors, etc, realizes control protection and monitoring.
It has "five preventions".it prevents on-load pushing or pulling circuit breaker's handcart, prevents making or breaking circuit breaker by mistake, prevents closing circuit breaker when the earthing switch is at closing position, prevents entering into live compartment by mistake, andi prcvents closing earthing switch under live con dition. It can be equipped with the NVI-24 type vacuum circuit breaker developed by our company, it is a an ideal distribution equipment with perfect performances.
It complies with the standards GB 3906, GB/T 11022 and IEC 60298.
1.Switchgear of 24kV with compact volume
Structure of this product is similar to that of mid-set swichgear of 12kV, the product is aplicable to systems of 20kV, no need composite insulation or interphase separator, with outstanding insulation performance.
2.Safe structure, flexible installation
This swichgear is.composed of cabinet body and mid-set withdrawable part(i.e. handcart) two parts. The cabinet body is divided into four separate compartments, degree of protection of the enclosure is IP4X and the protection degree is IP2X when compartment doors and circuit breaker chamber door are opened. It has overhead incoming and ouging lines, cable incoming and outgoing lines and other function schemes, it can become power distribution unit of different schemes and forms after permutation and combination. This swichgear can be installed, debugged and maintained from the front side, so it can be arranged in duplex by means of back-to-back or arranged against the wall, which not only improves its safety and flexibility, but also reduces the floor space.
Use environmental conditions
1. Ambient temperature:-15ºC~+40ºC,average value measure within 24h should not exceed 35°C;
2.Altitude: ≤1000m;
3. Relative humidity:daily≤95%, monthly≤90%;
4. Seismic intensity:≤Ms8;
5. Vapor pressure: daily≤2.2kPa, monthly≤1.8kPa.
6. Ambient environment: the installation site should be free of fire, explosive danger,serious pollution, chemical corrosion or severe vibration.
| Rated voltage |
kV |
24 |
Rated current |
A |
630 1250 1600 2000 2500 3150 |
| Rated frequency |
Hz |
50 |
Rated short-time withstand current |
kA |
16 20 25 31.5 |
| Rated peak withstand current |
kA |
40 50 63 80 |
1 min power frequency withsteand voltage |
kV |
(50)65 |
| Rated impulse withstand voltage |
kV |
125 |
Rated short-circuit duration |
s |
4 |
| Degree of protection |
|
IP4X |
Rated current of branch busbar |
A |
630 1250 1600 2000 2500 |
| Rated short-time withstand current |
kA |
40 50 63 80 |
Mass |
kg |
800 1000 |
Founded in 2008, registered capital of 108 million CNY, ROOQ electric group.;ltd is a high-tech enterprise specializing in the design, manufacture, sales and service of products such as power transformers, complete sets of electrical appliances, high and low voltage components, and smart city control systems.
Since its establishment, ROOQ has always adhered to product quality first, as the guide of "customer demands". It has successively served for T2 Wenzhou Airport, Ski Resort, Zhejiang National Defense Force, Hangzhou-Wenzhou Railway, Cangnan gymnasium, Country Garden Community, First People's Hospital of Songxi, Tema Road Lighting of Ghana, Presidential Palace of Burundi, Ministry of Energy of Rwanda, National Hospital of Mozambique, Refinery of CNPC in Thailand, State Television of Uzbekistan, Gold mine of Kyrgyzstan, National Data Center of Kazakhstan etc. With years of innovation and professional manufacturing experience, we have more than 20 independent intellectual property rights, and strong advantages in special product customization and EPC power engineering general contracting now. Stable quality assurance and timely delivery capabilities have won widespread trust from users around the world.
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