KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear
The KYN28A-12 Indoor metal-clad withdrawable switchgear (hereinafter referred to as the switchgear) is a state-of-the-art power distribution apparatus, meticulously engineered for 3.6 - 24 kV, three-phase AC 50Hz single-bus sectionalized systems. It is an indispensable asset in various power systems, offering comprehensive functionalities:
- Power Plant Applications: It is predominantly employed for the seamless power transmission of medium to small generators within power plants, ensuring the proficient conveyance of electrical energy generated by these generators to the power grid or other connected infrastructures.
- Substation and Distribution Applications: Within substations of the power distribution network, as well as in the power systems of factories, mines, and enterprises, this switchgear assumes a pivotal role in both power reception and transmission. It facilitates the uninterrupted distribution of power across diverse end-users and facilities.
- Motor Starting: The switchgear is also vital for initiating large high-voltage motors. By adeptly controlling the electrical current during motor startup, it fortifies the motor against potential harm from over-current or voltage surges.
Functionally, the switchgear is adeptly designed to manage, protect, and oversee the electrical system. It adheres strictly to international and national benchmarks, specifically conforming to the exigencies of IEC298 and GB3906-91, ensuring its reliability, safety, and adaptability for a broad spectrum of applications.
Regarding component compatibility, besides being compatible with domestic VS1 vacuum circuit breakers, the switchgear is versatile enough to incorporate renowned international and domestic components like VD4, 3AH5 from Siemens, domestic ZN65A, and VB2 from GE. This versatility in component selection bestows greater elasticity in system design and customization.
To address the specific requisites of wall-mounting installation and front-end maintenance, the switchgear is outfitted with a specialized current transformer. This design enhancement empowers operators to execute maintenance and inspections conveniently from the front of the cubicle, bolstering the overall maintainability and accessibility of the apparatus. In essence, the KYN28 indoor metal-clad withdrawable switchgear is a high-performance power distribution device, harmonizing reliability, compatibility, and user-centric 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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