General description
KYN28(GZS1) type moveable metal-clad switchgear is three-phase A.C 50Hz indoor distributing equipment with voltage of 3.6~12kV. It is used for power plant to transmit power and used for electricity system, industrial and mineral enterprise to receive and distribute power as well as to control high voltage generator which is frequently started. It can meet the standard requirements of GB3906. DL404. IEC-298 etc. And it has the function of the preventing wrong operation for circuit breakers, preventing move truck with load, preventing opening(closing) earthing switch with charged, preventing earthing switch transmitting power in the earthing position and preventing entering into live compartment.
Appling ambient conditions
Ambient temperature: The max. Temperature should be +40 ºC, the mix tempreature should be -15ºC,
Relative humidity: The average humidity of a day should be no more than 95%, the average humidity of a month should be no more than 90%,
Height above the sea level:≤1000m,
The earthquake intensity should be no more than 8 degree,
Saturatedvapour pressure: The avarage saturated vapour pressure of a day should be no more than 2.2x10
-3MPa, the average saturated vapour pressure of a month should be no more than 1.8x10
-3MPa.
It should be used in the places where is free from the fire, explosion, serious filth, chemical erosion and violent vibration.
Main characteristics
The enclosure is made of aluminum-zinc coated sheet processed by bending several times.
All operations should be done under the door closed.
The high protection degree can avoid in gression of substance or insectsenter.
Wrong operation can be avoided due to its simple and effective "FIVEPROVENTION".
It can be equipped with ZN63A and VD4 type vacuum circuit breakers.
For the truck has good interchangeability, it is easy to change vacuum circuit breakers.
For saving spave, the switchgear can be installed against the wall and maintained from the front side.
There are enough place for connection cables.
Instant earthing switch can be used for earthing operation and short circuiting operation.
It can be separately equipped with heater inside the VCB compartment and cable compartment to prevent condensation and erosion.
Construction description for switchgear
This kind of switchgear consists of fixed enclosure and withdrawable parts(called truck in short). The enclosures and partitions of all functional units are made up of aluminum-zinc coated sheet and assembled by bolts. The degree of protection of the enclosure is IP4X. The degree of protection is IP2X when the door of circuit breaker compartment opened.
The switchgear can be equipped with ZN63 or VD4 type vacuum circuit breaker, and it can be installed back to back or face to face. As the installation and adjustment for switchgear can be done from front side, the switchgear can be installed against wall.
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