Overview
KYN61-40.5KV High Voltage Withdrawable Switchgear is a MV air-insulated switchgear (AIS) for primary distribution, with vacuum circuit-breaker has been designed for the various operating requirements in public and industrial medium-voltage distribution systems.
This panel applies to 27～40.5kv 3 phase AC 50Hz / 60Hz network for receiving and distributing power energy and also for control，monitor and protection. It can be arranged for single bus, single-bus sectionalizing system.
It accords to IEC62271-200, IEC694, GB3906<<3～35KV AC Metal Enclosed Switchgear>>, DL404, DIN.VDE0670 and so on. It has perfect and reliable prevention function against false-operation.
Main characteristic
- Cabinet structure adopts assembly type, circuit breaker adopts handcart floor type structure;
- Fitted with completely new type of composite insulation of vacuum circuit breaker, and has good compatibility and replace simply characteristic;
- Handcart frame is provided with a screw nut propelling mechanism, which can be easily moved by the hand cart, and can prevent the damage of the pushing structure from the misoperation;
- All operations can be carried out when the door closed;
- Main switch, trolley, interlock between switchgear door adopts the mandatory mechanical locking to meet “five protection” function;
- The space of cable room is ample, and can connect a plurality of cables;
- The quickly earth switch for grounding and line circuit short circuit;
- Shell protection class IP3X, when handcart room door opening , protection level IP2X; 9. Products comply with IEC62271-200 ,GB 3906-2006, DL/T 404-2007 and reference to the standard of international IEC 298.
Working Conditions
- Ambient temperature：-30℃ ~ +50℃， and measuring average RH within 24 hours ≤50℃;
- Altitude: Not exceed 2500m above sea level;
- Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%;
- Earthquake intensity: ≤ Degree 8;
- Water vapor pressure:Daily average RH ≤ 2.2kPa;
- Monthly average RH ≤ 1.8kPa;
- Ambient environment: no fire, explosion danger, serious pollution, chemical corrosion and severe vibration place.
Special working conditions
For special working conditions, be sure to consult the manufacturer before ordering. The manufacturer and the customer should agree on the special operating conditions.
- The effect on the insulation level of a reduction in the strength of the air medium has been taken into account when the installation site is at an altitude of more than 1000 m above sea level.
- If the ambient temperature exceeds the limit values, the design of busbars and branch busbars needs to be compensated or the current-carrying capacity needs to be limited. Installation of ventilation devices in the cabinet will facilitate the heat dissipation of the switchgear.
