MV KYN61-40.5 Metal-clad Movable Switchgear for Frequent Operation Occasions
MV KYN61-40.5 metal-clad movable switchgear is indoor power distribution equipment and it is suitable for 3-phase, AC, 50 Hz and rated voltage of 40.5 kV. This kind of switchgears are used to receive and distribute power energy in power plants, transformer substations and industrial & mining establishments. They are also used to control, protect and monitor circuits. Besides, they are used in the frequent operation occasions.

MV KYN61-40.5 metal-clad movable switchgear.

MV KYN61-40.5 metal-clad movable switchgear is suitable for 40.5 kV rated voltage power distribution system.
Features:
- Switchgear is designed of assembly structure and circuit breaker is handcart floor model.
- It is equipped with advanced composite insulation vacuum circuit breakers featuring good exchangeability and simple change.
- There is lead screw nut propulsion mechanism in handcart frame, making the handcart movement easy. And this design can prevent from fault operation which may damage the propulsion mechanism.
- All the operations can be carried out at switchgear-closed condition.
- The interlockings of main switch, handcart and switchgear door adopt compulsory mechanical locking, and this design meets five protection function.
- The space of cable chamber is wide and many cables can be connected in the cable chamber.
- Quick earthing switch is used for earthing and loop short circuit.
- The protection degree of enclosure is IP3X and IP2X at the handcart door opening condition.
- The product conforms to GB/T11022-1999, GB3906-1991 and DL404-1997. It is manufactured according to international standard of IEC-298.
- Overall dimensions (width × depth × height): 1400 mm × 2800 mm × 2600 mm.
Working conditions:
- Environment temperature: -10 °C to +40 °C, and daily average temperature ≤ 35 °C.
- Altitude: ≤ 1000 m.
- Relative humidity: daily average ≤ 95%, monthly average ≤ 90%.
- Seismic intensity: ≤ 8 degree.
- Vapor pressure: daily average ≤ 2.2 kPa, monthly average ≤ 1.8 kPa.
- The surrounded environments should be free of fire, explosion, serious dirt, chemical corrosion and severe vibration.
No. | Items | Parameters |
---|---|---|
1 | Rated voltage (kV) | 40.5 |
2 | Rated current (A) | 1250, 1600, 2000 |
3 | Rated frequency (Hz) | 50 |
4 | Rated short-time withstand current (kA) | 20, 25, 31.5 |
5 | Rated peak withstand current (kA) | 50, 63, 80 |
6 | Rated power frequency withstand voltage (kV) | 95/1 min |
7 | Rated lightning impulse withstand voltage (kV) | 185 |
8 | Rated short-circuit lasting time (s) | 4 |
9 | Protection degree | IP3X |
No. | Items | Parameters |
---|---|---|
1 | Rated voltage (kV) | 40.5 |
2 | Rated frequency (Hz) | 50 |
3 | Rated power frequency withstand voltage (kV) | 95 /1 min |
4 | Rated lightning impulse withstand voltage (kV) | 185 |
5 | Rated current (A) | 1250, 1600, 2000 |
6 | Rated short-time withstand current (kA) | 20, 25, 31.5 |
7 | Rated short-circuit breaking current (kA) | 20, 25, 31.5 |
8 | Rated peak withstand current (kA) | 50, 63, 80 |
9 | Rated short-circuit lasting time (ms) | 4 |
10 | Breaking time (ms) | 30 - 60 |
11 | Closing time (s) | 50 - 100 |
12 | Rated short-circuit breaking current times (Times) | 30 |
13 | Mechanical life (Times) | 10000 |