KYN28A-12 Indoor Metal - Clad Withdrawable Switchgear
The KYN28A-12 indoor metal - clad withdrawable switchgear (hereinafter referred to as the switchgear) is a comprehensive power distribution apparatus designed for 3.6 - 24 kV, three - phase AC 50Hz single - bus sectionalized systems. It serves multiple crucial functions in various power systems:
- Power Plant Applications: It is primarily utilized for the power transmission of medium - to - small generators in power plants. This ensures the efficient transfer of electrical energy generated by these generators to the power grid or other connected systems.
- Substation and Distribution Applications: In substations within the power distribution network and in the power systems of factories, mines, and enterprises, the switchgear plays a vital role in power receiving and transmission. It enables the smooth distribution of power to different end - users and facilities.
- Motor Starting: It is also employed for the starting of large high - voltage motors. By controlling the electrical current during motor startup, it safeguards the motor from potential damage due to over - current or voltage surges.
Functionally, the switchgear is designed to control, protect, and monitor the electrical system. It adheres to international and national standards, specifically meeting the requirements of IEC298 and GB3906 - 91. This compliance ensures its reliability, safety, and compatibility in a wide range of applications.
In terms of component compatibility, in addition to being compatible with domestic VS1 vacuum circuit breakers, the switchgear can also be integrated with well - known international and domestic components such as VD4 from ABB, 3AH5 from Siemens, domestic ZN65A, and VB2 from GE. This versatility in component selection allows for greater flexibility in system design and customization.
To meet the specific requirements of wall - mounting installation and front - end maintenance, the switchgear is equipped with a specialized current transformer. This design feature enables operators to perform maintenance and inspections conveniently from the front of the cubicle, enhancing the overall maintainability and accessibility of the equipment. Overall, the KYN28 indoor metal - clad withdrawable switchgear is a high - performance power distribution device that combines reliability, compatibility, and user - friendly features.
| Item |
Unit |
Parameters |
|
|
KV |
12 |
| Rated Frequency |
Hz |
50/60 |
| Rated Current |
A |
630, 1250, 1600, 2000, 2500, 3150 |
| Branch busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150 |
| Main busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150 |
| Lightening impulse withstand voltage |
KV |
75, 95/125 |
| Rated Short-time Withstand Current (4s) |
KA |
16, 20, 25, 31.5, 40, 50 |
| Rated Short Circuit Breaking Current (Peak) |
KA |
40, 50, 63, 80, 100 |
|
|
|
IP4X for housing |
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