KYN28-12 model Metal-clad Centered Metal-enclosed Switchgear applies to 3 phase AC 50Hz single bus, single-bus sectionizing system. Rated voltage is 12kV having five protection function.
Switchgear equipped with VD4-12, VS1-12, VBI-12, VSG-12 type VCB handcart.
The protection class of enclosure is IP4X and it will be IP2X as the cubicle door is opened.
The enclosure is made of aluminium-zinc plated steel sheet after multi-bending, then assembled with bolts to ensure its uniformity in size.
The cubicle can be divided into circuit breaker compartment, busbar compartment, cable compartment, instrument compartment( low voltage compartment), and each function unit boxes are divided independently.
According to its usage, the handcart can sort into CB handcart, PT handcart, measuring handcart and so on.
The handcart has testing position and working position in cubicle, and each position is equipped with a locating device.
The handcarts will not move at random when in specified position.
Switchgear Structure
Technical Specifications
| Item |
Unit |
Data |
| Rated voltage |
|
kV |
12 |
| Rated insulation level |
1min.P.F.withstand voltage |
kV |
42 |
| Lighting impulse withstand voltage |
kV |
75 |
| Rated frequency |
Hz |
50 |
| Rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 4S Rated thermal stability current |
kA |
20, 25, 31.5, 40, 50 |
| Rated moving stability current (peak) |
kA |
50, 63, 100, 125 |
| Protection class |
Enclosure: IP4X, opened door: IP2X |
| Outline dimension |
≤1250A |
800×1500 (1300) ×2300 |
| >1250A |
1000×1500×2300 |
| Aerial incoming and outgoing |
The depth changes to 1670 |
Audited Supplier 
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