KYN28A-12 Lv Switch Panel 6KV Withdrawable Switchgear
General
KYN28A-12 is a relatively common high-voltage switchgear at present
in China, its full name is: indoor metal armored removable
switchgear.
Its rated voltage is 3.6kV~12kV, and its characteristic is that the
equipped vacuum circuit breaker is in the middle of the switch
cabinet, that is, the circuit breaker is located in the middle of
the front cabinet of the switchgear, so the lower space can be
saved for the expansion of other schemes or used as a cable room.
Service environment
1. Air temperature: -25℃~+40℃
2. Humidity: Monthly average humidity 95%; Daily average humidity
90%.
3. Altitude:≤ 2500m
4. Ambient air not apparently polluted by corrosive and flammable
gas, vapor etc.
5. No frequent violent shake
Technical data
| No. | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 3.6~24 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current | A | 630,1250,1600,2000,2500,3150,4000 |
| 4 | Branch busbar Rated current | 630,1250,1600,2000,2500,3150,4000 |
| 5 | Main busbar Rated current | 630,1250,1600,2000,2500,3150,4000 |
| 6 | 1min Power frequency withstand voltage | wet | KV | 38 | 50/60 |
| dry | 48 | 60/65 |
| 7 | Lightning impulse withstand voltage | kV | 75 | 95/125 |
| 8 | Rated short circuit breaking current (peak) | KA | 40/50/63/80/100 |
| 9 | Short-time withstand current(4s) | 20/25/31.5/40 |
| 10 | Protection type | | IP4X for housing |
Cabinet parameter editing
The cabinet structure is made of aluminum-zinc-coated sheets, which
are bolted and processed by CNC machine tools using multiple
bending processes;
All operations are carried out with the cabinet door closed;
The protection level is high, which can prevent the intrusion of
debris and insect pests;
Simple and effective "five prevention" lockout to prevent
misoperation;
Can be equipped with VS1 and VD4 vacuum circuit breakers;
It is easy to replace the circuit breaker, and the handcart
interchangeability is good;
Reliable wall installation and front maintenance of the cabinet
reduce the floor space;
The cable room has ample space and can connect multiple cables;
The circuit breaker room and the cable room can be equipped with
heaters respectively to prevent condensation and corrosion.
