KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear
The KYN28A-12 This state-of-the-art KYN28A-12 indoor metal-clad withdrawable switchgear (henceforth referred to as the switchgear) represents a pinnacle in comprehensive power distribution design, engineered specifically for systems operating between 3.6 - 24 kV, three-phase AC at 50Hz, and featuring single-bus sectionalized configurations. It plays an indispensable role across varied power systems, providing essential functions:
- Power Plant Applications: A cornerstone in power plant operations, this switchgear is primarily deployed for the transmission of electrical power from medium to small generators. It ensures the seamless and efficient transfer of electricity to power grids or other integrated systems, maintaining energy flow and stability.
- Substation and Distribution Applications: Within substations and across power distribution networks, as well as factory, mine, and enterprise power systems, the switchgear fulfills a crucial role. It facilitates the reception and distribution of power, ensuring a seamless flow to various end-users and operational sites, thereby bolstering system efficiency.
- Motor Starting: This switchgear is also pivotal in initiating the operation of large high-voltage motors. It adeptly manages electrical currents during startup phases, protecting motors from over-current or voltage surges, thus ensuring operational longevity and safety.
The switchgear is meticulously engineered to control, protect, and oversee electrical systems, aligning with rigorous international and national standards, notably IEC298 and GB3906-91. This adherence guarantees its reliability, safety, and adaptability across a multitude of applications.
In terms of component versatility, the switchgear is compatible with domestic VS1 vacuum circuit breakers and can integrate with globally recognized components such as VD4, Siemens' 3AH5, and domestic ZN65A, along with GE's VB2. This extensive compatibility empowers tailored system designs and customizations, enhancing operational flexibility.
To address the specific needs of wall-mounted installations and front-end maintenance, the switchgear includes a specialized current transformer. This feature facilitates convenient front-facing maintenance and inspections, significantly enhancing the equipment's accessibility and serviceability. The KYN28 indoor metal-clad withdrawable switchgear epitomizes high-performance power distribution, merging reliability, compatibility, and user-centric design.
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 rating for housing |



