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2020 Shanghai International Electric Power Equipment and Technology Exhibition. It has been successfully concluded on December 5~ -
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KYN28A-12/24 Withdrawable Metal Clad Switchgear
- KYN28A-12/24 metal-clad withdrawable switchgear (hereinafter referred to as KYN28A-12/24 switchgear) is suitable for three-phase AC 50Hz, 3.6-24kV single busbar and single busbar segmented power systems, and is used as a transmission control device for receiving and distributing electrical energy.
►Overview
KYN28A-12/24 metal-clad withdrawable switchgear (hereinafter referred to as KYN28A-12/24 switchgear) is suitable for three-phase AC 50Hz, 3.6-24kV single busbar and single busbar segmented power systems, and is used as a transmission control device for receiving and distributing electrical energy. Mainly used for power plants, small and medium-sized generators for power transmission, industrial and mining enterprise distribution, and secondary substations for power systems, as well as for starting large high-voltage motors. The movable part of the switchgear can be equipped with various types of vacuum circuit breakers, vacuum contactors and other components. It is actually a high-performance distribution device.
►Technical Parameter
| Parameter name | Unit | Parameter | ||
| Rated voltage | kV | 12/24 | ||
| Rated insulation level | 1min power frequency withstand voltage | Alternately and oppositely | kV | 42/50 |
| Isolation fracture | kV | 48/65 | ||
| Lightning impulse withstand voltage | Alternately and oppositely | kV | 75/95 | |
| Isolation fracture | kV | 85/110 | ||
| Rated frequency | Hz | 50 | ||
| Rated current of main bu | A | 630, 250, 1600, 2000, 2500, 3150, 4000 | ||
| Rated current of branch bus | A | 630, 250, 1600, 2000, 2500, 3150, 4000 | ||
| Rated short-term withstand current | kA | 16, 20, 25, 31.5, 40 | ||
| Rated peak withstand current | kA | 40, 50, 63, 80, 100 | ||
►Product Features
1.Rational construction：The switchgear adopts a completely metal clad design, with a high level of protection (IP4X) for the outer shell. The inlet and outlet holes of power cables and control cables are sealed with rubber sealing rings, which can prevent dirt and small animals from entering and protect the insulation layer of the circuit.
2.Stable and reliable：There are observation windows on the door panels of the circuit breaker room and cable room, which can conveniently observe the position and status of the circuit breaker and the working status of the incoming and outgoing cables. At the same time, it also maintains the ability to withstand internal arc faults within the switchgear.
3.Superior performance：The three compartments of the switchgear are equipped with pressure release channels to release the pressure generated by internal arc faults.
4.High protection level：The switchgear has comprehensive measures to prevent misoperation, is installed with reliable mechanical interlocking, and meets the "five prevention" requirements of the power system.
5.Easy to expand：The cable room has sufficient cable connection space in both depth and height directions, and each phase can connect two teams of cables in parallel, making it easy to install. According to the specific application requirements, voltage transformers, lightning arresters and other components can also be installed in the cable room.
6.Good suitability：Withdrawable circuit breaker of the same specification can be interchanged without any adjustment. Multiple models of microcomputer protection devices can be configured, and it is recommended to choose the Comking CKPM301 microcomputer control protection device.
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