KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear
The KYN28A-12 indoor metal-clad withdrawable switchgear, henceforth referred to as the switchgear, is a sophisticated power distribution apparatus crafted for 3.6 - 24 kV, three-phase AC 50Hz single-bus sectionalized systems. It is designed to fulfill a multitude of essential functions across various power systems:
- Power Plant Applications: This switchgear is pivotal for transmitting power from medium-to-small generators in power plants, ensuring the seamless flow of electric energy to the power grid or other systems, thereby optimizing power plant efficiency.
- Substation and Distribution Applications: Within substations in the power distribution network and industrial power systems, this switchgear is indispensable for the reception and transmission of power. It guarantees the efficient distribution of electricity to diverse end-users and facilities.
- Motor Starting: It is also utilized for initiating large high-voltage motors, providing essential control over electrical currents during startup to protect motors from over-current or voltage spikes.
Functionally, this switchgear is engineered to control, protect, and monitor electrical systems. It complies with international and national norms, specifically satisfying IEC298 and GB3906-91 standards, ensuring reliability, safety, and broad application compatibility.
Regarding component compatibility, alongside domestic VS1 vacuum circuit breakers, this switchgear seamlessly integrates with renowned international and domestic components such as VD4, Siemens' 3AH5, domestic ZN65A, and GE's VB2. This flexibility in component selection enhances design versatility and customization.
To accommodate wall-mounting installation and front-end maintenance, the switchgear is outfitted with a specialized current transformer. This facilitates easy maintenance and inspection access from the front of the cubicle, significantly boosting overall maintainability and accessibility. The KYN28 indoor metal-clad withdrawable switchgear exemplifies 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 for housing |
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