Metal Clad Switchgear

Metal Clad Switchgear

General

KYN28 indoor metal-clad withdrawable switchgear(hereinafter short as switchgear)is a complete power distribution device for 3.6~24kV,3-phase AC 50Hz,single-bus and single-bus sectionalized system.　It is mainly used for power transmission of middle/small generators in power plants;　power receiving,　transmission for substations in power distribution and power system of factories, mines and enterprises,　and starting of large high-voltage motor,　etc.,so as to control,　protect and monitor the system.　The switchgear meets IEC298,GB3906-91.In addition to be used with domestic VS1 vacuum circuit breaker,　it can also be used with VD4 from ABB,3AH5 from Siemens domestic ZN65A,and VB2 from GE,　etc.,it is truly a power distribution device with good performance.
In order to meet the requirement for wall mounting and front-end maintenance,　the switchgear is equipped with a special current transformer,　so that the operator can maintain and inspect it in front of the cubicle.

Service environment

a) Air temperature: Maximum temperature: +40℃; Minimum temperature:-15℃
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 1000M.
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake

Overall size and weight

Item	With VS1,VD4 inside	With VS1,VD4 inside	With 3AH5, ZN65A
W×D×H(mm)	650×1400×2200	800(1000)×1500×2200	800(1000)×1700×2200
Weight (kg)	700	800	900

Notice:
when the rated current is more than 1600A, cubicle width shall de 1000 mm, and cubicle height will be 1660mm and for schema of rear overhead line in.
1)Width of cabinet:650mm(compound insulation)or 800mm(air insulation) at current<1250A;
2)Width of cabinet:1000mm at current>1250A;
3)Depth of cabinet:1400mm,at cabinet width of 650mm(compoud insulation)when employing the configuration of incoming and outgoing cables;
4)Depth of cabinet:1500mm,at cabinet width of 6800mm(air insulation)when employing the configuration of incoming and outgoing cables;
5)Depth of cabinet:1600mm,when employing the configuration of rear overhead incoming and outgoing cables.

Structure Features

Main components charateristics

VS1-12 indoor drawable vacuum circuit breaker. Rated voltage 12kV up to 24kV Rated current 630A up to 4000A Rated short circuit breaking current 20kA up to 40kA Mechanical life 10,000 times
VD4 embeded pole indoor vacuum circuit breaker. Rated voltage 12kV up to 24kV Rated current 630A up to 4000A Rated short circuit breaking current 20kA up to 40kA Mechanical life 10,000 times
VSM magnetic actuator indoor VCB Rated voltage 12kV up to 24kV Rated current 630A up to 4000A Rated short circuit breaking current 20kA up to 40kA Mechanical life 100,000 times