KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear
The KYN28A-12 indoor metal-clad withdrawable switchgear (hereinafter referred to as the switchgear) is an advanced power distribution apparatus engineered for 3.6-24 kV, three-phase AC 50Hz single-bus sectionalized systems. It performs numerous essential functions across diverse power systems, ensuring optimal performance and reliability:
- Power Plant Applications: This switchgear is crucial for the power transmission of medium-to-small generators in power plants, ensuring the seamless transfer of electrical energy generated by these generators to the power grid or other interconnected systems, enhancing efficiency and stability.
- Substation and Distribution Applications: Within substations of power distribution networks and in the power systems of factories, mines, and enterprises, the switchgear is indispensable for power receiving and transmission. It guarantees smooth and efficient power distribution to various end-users and facilities, promoting operational excellence.
- Motor Starting: The switchgear is instrumental in starting large high-voltage motors, controlling the electrical current during motor startup. It protects the motors from potential damage by preventing over-current or voltage surges, ensuring longevity and performance.
Functionally, the switchgear is meticulously designed to control, protect, and monitor the electrical system. It complies with international and national standards, specifically IEC298 and GB3906-91, ensuring unparalleled reliability, safety, and compatibility across a myriad of applications.
Regarding component compatibility, in addition to working with domestic VS1 vacuum circuit breakers, the switchgear is integrable with renowned international and domestic components such as VD4, 3AH5 from Siemens, domestic ZN65A, and VB2 from GE. This adaptability in component selection provides enhanced flexibility in system design and customization, meeting diverse technical requirements.
To cater to specific wall-mounting installation and front-end maintenance needs, the switchgear features a specialized current transformer. This design enhancement allows operators to conveniently perform maintenance and inspections from the front of the cubicle, significantly improving the maintainability and accessibility of the equipment. Overall, the KYN28 indoor metal-clad withdrawable switchgear stands as a high-performance power distribution device, merging 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 |
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