KYN28A-12 Indoor Metal-Clad Withdrawable Switchgear
The KYN28A-12 Indoor metal-clad withdrawable switchgear (referred to as the switchgear) is a sophisticated power distribution apparatus meticulously engineered for 3.6 - 24 kV, three-phase AC 50Hz single-bus sectionalized systems. It performs a suite of essential functions across various power systems:
- Power Plant Applications: Primarily harnessed for the power transmission of medium-to-small generators in power plants, this switchgear guarantees the effective conveyance of electrical energy from these generators to the power grid or interconnected systems, maximizing energy efficiency.
- Substation and Distribution Applications: Within substations of the power distribution network and in the power systems of factories, mines, and enterprises, the switchgear is indispensable for power reception and transmission. It ensures the seamless distribution of power to diverse end-users and facilities, optimizing operational efficacy.
- Motor Starting: Serving as a crucial component in the startup of large high-voltage motors, the switchgear modulates the electrical current during motor initiation, thereby protecting the motor from potential harm due to over-current or voltage spikes.
Designed with precision, the switchgear controls, protects, and monitors the electrical system. It complies with international and national standards, particularly IEC298 and GB3906-91, ensuring reliability, safety, and adaptability in a multitude of applications.
In the realm of component compatibility, beyond being compatible with domestic VS1 vacuum circuit breakers, the switchgear seamlessly integrates with renowned international and domestic components including VD4, 3AH5 from Siemens, domestic ZN65A, and VB2 from GE. This adaptability in component choice empowers enhanced flexibility in system architecture and customization.
To accommodate specific requirements for wall-mounting installations and front-end maintenance, the switchgear is outfitted with an advanced current transformer. This design aspect permits operators to carry out maintenance and inspections conveniently from the front of the cubicle, significantly boosting maintainability and accessibility. Comprehensively, the KYN28 indoor metal-clad withdrawable switchgear epitomizes high-performance power distribution equipment, blending reliability, compatibility, and user-friendly attributes.
| 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 |
|
|
|
For housing, the protection level is rated at IP4X, enhancing the security and durability of the switchgear against environmental factors. |
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