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SF6 Ring Main Unit Switchgear HXGT6(XGN58)-12

  • Units in Stock: 100

SF6 Ring Main Unit Switchgear HXGT6(XGN58)-12

HXGT6(XCN58)-12 SF6 Ring Main Unit Switchgear (hereafter referred to as Switchgear) is designed and manufactured by ourselves according to the requirement of the power supply in our country.
      As a new generation of Indoor 10kV electric appliances, by pattern test and commissioning, whose performance index is up to IEC298 [AC Metal-clad Switchgear] standard and relevant national standard. It is light in weight, easily operated, safe in usage, high reliability, independent of environment and free from maintenance etc.
     
The switchgear is a combined electric appliance that sealing each main circuit switch into a metal enclosure, use SF6 gas as arc extinguishing and insulation media, suitable for ring main power supply and double radiation power supply in 10kV middle voltage power supply network, use as terminal power supply as well.
      The product is suitable for power distribution and control in mines, residential district, schools, parks ect, due to enhancing the reliability of power supply by ring main power supply.
     
In addition, with the character of easily wiring, small size, convenient installation, it is suitable for being installed in the Combination Substation as primary side HV equipment.

Product Feature :
      a. Ring main unit is composed of three compartments. The load switch is laid in the sealed cubicle welded by stainless steel plate. There is SF6 gas of 0.04Mpa as the medium of extinction and insulation .
      b. There are three positions, namely closing, isolating, earthing separately, whose positions are determined by the indicator on the mechanism panel.
      c. The cable incoming/outgoing line uses cable connector (plug ins).
      d. There is a separate operation mechanism in each compartment, where you can realize manual operation and manual and motor operation. There are closing/opening indication on the operation panel.
      e. The fuse is installed in the epoxy resin tube in the middle of the cubicle. Due to the needle type mechanism of fuse and the opening device of operation mechanism in load switch are connected together, once the fuse is blew out with fault, the tripping mechanism will make the load switch opening. 
      f. The load switch apply revolving extinction arc principle, which will make contact long life endurance.
      g. There is manometer in the front of the switchgear to monitor the pressure of the SF6 gas.
      h. In order to prevent the inner of equipment from hyperbaria with circuit fault, there is a pressure release device at the bottom of the switchgear.

Technical parameter :
     Basic technical parameter of switchgear :

 
No
Item
Unit
Parameter
1
Rated voltage
kV
12
2
Rated frequency
Hz
50
3
Load switch rated current
A
630
4
Main circuit short-time withstand current(r.m.s)3s
kA
20
5
Main circuit peak withstand current (peak value)
kA
50
6
Main circuit rated making current(peak value)
kA
50
7
Rated active load breaking current
A
630
8
Rated breaking current of closed loop
A
630
9
5% rated active load breaking current
A
31.5
10
Rated cable charging breaking current
A
10
11
Rated transformer no load breaking current
A
No load current of 1600kVA transformer
12
Rated breaking current of fuse
kA
31.5
13
Rated transfer current
A
1500
14
Full capacity breaking times
times
100
15
Mechanical endurance
times
10000
16
1min power frequency withstand voltage£¬phase to phase £¬phase to earth/ isolating distance
kV
42/48
17
Lightning impulse withstand voltage£¬phase to earth£¬phase to phase/isolating distance
kV
75/85
18
SF6 gas rated voltage(20¡æ,gage pressure)
Mpa
0.04
19
SF6 yearly leakage rate
 
<=1£¥
20
Oeration power,voltage of motor
V
DC 48, AC 220, 110
21
Closing motor current
A
0.5
22
Opening current
A
2.5

       Technical parameter of HV Fuse :
No.
Rated voltage
Rated current of fuse
Rated current of fuse
Rated breaking current
XRNT
12
40
6.3 10 16 20 25 31.5 40
31.5
100
50 63 71 80 100
31.5
125
125
31.5