KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear: A marvel in electrical engineering, this switchgear boasts of cutting-edge technology and robust design, ensuring top-notch performance and reliability.
The KYN28A-12 indoor metal-clad withdrawable switchgear (hereinafter referred to as the switchgear) is a sophisticated power distribution apparatus tailored for systems operating between 3.6 - 24 kV, designed for three-phase AC 50Hz single-bus sectionalized systems. This remarkable device fulfills several crucial roles within diverse power systems:
- Power Plant Applications: Perfectly suited for medium-to-small generator power transmission in power plants, this switchgear facilitates the seamless transfer of generated electrical energy to the power grid or interconnected systems, ensuring operational efficiency and reliability.
- Substation and Distribution Applications: Within substations of power distribution networks and systems in factories, mines, and enterprises, the switchgear is indispensable for power receiving and transmission, ensuring a seamless flow of electricity to numerous end-users and facilities.
- Motor Starting: Additionally, this switchgear is essential for initiating large high-voltage motors. It expertly manages electrical current during startup, preventing potential motor damage due to over-current scenarios or voltage spikes.
Engineered to control, protect, and monitor electrical systems, the switchgear adheres strictly to international and national standards, particularly the IEC298 and GB3906-91. Its unwavering compliance guarantees reliability, safety, and compatibility across a broad spectrum of applications.
For component compatibility, beyond integrating with domestic VS1 vacuum circuit breakers, the switchgear can also harmoniously work with renowned international and domestic components such as VD4, 3AH5 from Siemens, domestic ZN65A, and VB2 from GE. This adaptability in component selection empowers system designers with unparalleled flexibility and customization.
To cater to the specific needs of wall-mounting installations and front-end maintenance, the switchgear features a specialized current transformer. This thoughtful design ensures operators can conveniently perform maintenance and inspections from the front of the cubicle, significantly enhancing the equipment's maintainability and accessibility. In essence, the KYN28 indoor metal-clad withdrawable switchgear stands as a high-performance power distribution device, boasting 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 |
Lightning 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: Offering superior protection, the IP4X-rated housing safeguards the internal components from dust ingress and ensures a safe operational environment. |



