110kV-1200kV GIS Inlet/outlet line Bushing
Structure: composed mainly of composite hollow insulator, end grading ring, heat dissipating cage, high-voltage terminals, center conductive rod, core shielded electrode, epoxy post insulator and quincunx contact.
Features:
² Excellent design effectively improves electric distribution of the bushing; partial discharge meets the requirement of IEC standards
² LSR sheds with special shape design provides strong environment adaptability
² Good dynamic thermal stability and control over temperature rise
² Excellent mechanical properties and outer insulation performance
² Excellent anti-seismic performance
|
Type
|
110
|
170
|
220
|
330
|
500
|
750
|
1000
|
1100
|
|
Rated frequency (Hz)
|
50/60
|
50 / 60
|
50/60
|
50/60
|
50/60
|
50/60
|
50/60
|
50/60
|
|
Rated highest voltage (kV)
|
126
|
170
|
252
|
363
|
550
|
800
|
1100
|
1200
|
|
Wet power frequency short-time withstand voltage (kV)
|
230
|
325
|
460
|
510
|
740
|
960
|
1200
|
1300
|
|
Wet switching impulse withstand voltage (kV)
|
/
|
/
|
/
|
950
|
1234
|
1550
|
1800
|
2000
|
|
Full-wave lightning impulse withstand voltage (kV)
|
550
|
750
|
1050
|
1175
|
1675
|
2100
|
2400
|
2600
|
|
Rated current (A)
|
1-4000
|
1-4000
|
1-5000
|
1-6300
|
1-6300
|
1-6300
|
1-8000
|
1-8000
|
|
Rated dynamic current (kA)
|
160
|
160
|
160
|
250
|
250
|
250
|
250
|
250
|
|
Rated short-time 3s thermal current (kA)
|
63
|
63
|
63
|
100
|
100
|
100
|
100
|
100
|
|
Radio interference (μV)
|
＜250
for 95kV
|
＜250
for 108kV
|
＜250
for 190kV
|
＜500
for 273kV
|
＜500
for 413kV
|
＜500
for 693kV
|
＜500
for 800kV
|
＜500
for 800kV
|
|
Rated bending load (kN · m)
|
9
|
9
|
9
|
9
|
9
|
9
|
9
|
9
|
|
Creepage distance (mm)
|
3950
|
5797
|
7812
|
9075
|
17050
|
26400
|
34100
|
37600
|
|
Partial discharge (pC)
|
＜5
|
＜5
|
＜5
|
＜5
|
＜5
|
＜5
|
＜5
|
＜5
|
* All dimensions are for reference only; all the products can be designed and produced according to client’s demands.
Product application:
After the completion of 1100kV type test in 2009, all type tests of some products have been completed successively. The 1200kv GIS inlet and outlet bushing has been put into use in India's 1200kv test station in 2012.
