Sf6 Ring Main Unit Non-Extensible Sf6 Gas Insulated Switchgear China

XGN15-12 Package AC Metal Enclosed Loop Switchgear, Fixed Type
 non-extensible sf6 gas insulated switchgear
 
 
General
 
1. Rating: Rated voltage 12KV, rated current reach to 630A.
2. Application :mainly applicable in urban power grid construction and renovation project. industrial and mining enterprises.high-rise buildings and communal facilities .For power distribution .controlling and protection on electric equipment as the loop power supply unit or termina equipment. It also can be installed in preloaded substation
3. Feature: Use SF6 load switch and load switch-fuse combination as main switch. Equipped with vacuum load switch and spring operating mechanism which can be operated by hand or electric. Earthing switch and insulating switch are equipped with hand operating mechanism. With small volume and high security
4. Standard: IEC60420
 
 
Working Conditions
1. Ambient air temperature: -15°C~+40°C.
2. Daily average temperature:≤35°C.
2. Altitude: ≤1000m.
4. Relative humidity : Daily average≤95% ,daily averange of vapour pressure≤2.2kpa
5. Monthly average≤90%,monthly averange of vapour pressure≤1.8kpa.
6. Earthquake intensity: ≤magnitude 8.
7. Applicable in the places without corrosive and flammable gas.
Note: Customized products are available.
 
 
 
 
 
Main technical Parameter 
 

No.	Item			Data
			Unit	Load switch cabinet	Combined electric appliance cabinet (load switch - fuse)
1	Rated voltage		kV	12	12
2	Rated current of main bus		A	630	630
3	Rated current		A	630	125
4	Rated power		Hz	50	50
5	Rated short time withstands current/time		kV	20
6	Rated withstands current(Peak)		kA	50
7	Rated short circuit breaking current		kA		31.5
8	Rated short circuit closing current		kA	50	80
9	Rated active load breaking current		A	630
10	Rated closed loop breaking current		A	630
11	Rated cable charging breaking current		A	10
12	Earthing switch rated short time withstand current/time		kA	20
13	Earthing switch rated peak withstand current		kA	50
14	Rated shifting current		a		1700
15	Rated insulation level	1 min power frequency withstands voltage	kV	Between phases, to earth 42	To open contacts 48
		lightening impulse withstands voltage	kV	Between phases, to earth 75	To open contacts 85
16	The main loop resistance		μΩ	≤300	≤300
17	Mechanical life (Load switch)		times	2000	2000
18	Mechanical life (Earthing switch)		times	2000	2000
19	Auxiliary loop 1 min power frequency withstand voltage		kV	2	2
20	Protection level			IP3X	IP3X

 
 
Structural feature
1. SF6 load switch with insulated enclosure FLN36-13D and FLRN36-12D could be matched in switchgear.
2. Compact design and easy operation.
3. There is a pressure reliefing duct at the rear of the switchgear to protect the operator when a failure occurs in the switchgear.
4. Allocation of the switchgear is changeable.
5. Reliable interlocking at the different making status of the loading switch, earthing switch to ensure the reliable operation.