TGZS1 indoor metal-clad withdrawable switchgear-A

1) Internal arc withstand in conformity with IEC 62271-200 2) a compact unit combining all MV functional 3) SF6 Gas Insulated

GeneralTGZS1 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 environmenta) Air temperature: Maximum temperature: +40°C; Minimum temperature:-15°C 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 Main technical specifications

No	Item		Unit	Parameter
1	Rated voltage		kV	7.2kV, 12 kV,17.5kV,24kV
2	Rated frequency		Hz	50/60
3	Rated current		A	630,1250,1600,2000,2500,3150,4000
4	Branch busbar Rated current		A	630,1250,1600,2000,2500,3150,4000
5	Main busbar Rated current		A	630,1250,1600,2000,2500,3150,4000
6	1min Power frequency withstand voltage	wet	kV	38	50/60
		dry	kV	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)		kA	20/25/31.5/40
10	Protection type			IP4X for housing

Note:*The short circuit capacity should be considered alone.

TGZS1 indoor metal-clad withdrawable switchgear-A