It adopt Sf6 gas of high electric-strength as the insulating medium .
When comparing with oil-immersed transformer,this product has advantages of good insulation peformance ,long service life,short performance,long service life,short production cycle,simplified processes,oil free,maintenance free,safe and reliable running .
It meets the modern power grid's high reliability requirements to the power transmission and transformation equipment.
TRANSDUCER | |
Altitude | note exceed 2000 m (the ones exceed 2000m shall be designed separately) |
Ambient temperature | -40C°-+50C° |
Max monthly mean relative humidity |
90% |
10min max average wind velocity | 35m/s |
Maxice coating thickness | 10mm |
class of pollution |
III,IV class |
Rated insulating level |
current transformer of 35kV |
current transformer of 66kV |
72.5/140/325kV |
current transformer of 110kV |
126/200/480kV |
current transformer of 220kV |
252/395/950kV |
Short-time thermal current |
50-63kA |
Rated peak with stand current |
125-160kA |
With stand voltage level under zero gauge pressure |
13times of max working voltage of equiment |
Partial discharge level |
1.2 times of max working voltage of equipment <5pC |
Annual gas leakage rate |
<0.5% |
Water content of SF 6 gas |
<150*10-6(V/V) |
Radio interference level |
1.1 times of max working voltage of equipment radio interference voltage <500uV |
Specific creepage distance of ecternalinsulation |
25mm/kV or 31mm/kv |
Static bearing load of primary terminal |
2000N-6000N |
Max total mass of product |
current transformer of35kV:450kg (there into mass of SF5 gas is 4kg) |
current transformer of66kV |
500kg (there into mass of SF5 gas is5kg) |
current transformer of110kV |
600kg (there into mass of SF5 gas is 7kg) |
current transformer of220kV |
1400kg (there into mass of SF5 gas is 23kg) |
Specification
Tee type | |||||
Type | Dimensions | ||||
A | B | C | D | E | |
LVQB-35 | 1335 | 1630 | 1150 | 340 | 18 |
LVQB-66 | 1695 | 2040 | 1200 | 400 | 18 |
LVQB-110 | 2180 | 2460 | 1290 | 475 | 18 |
LVQB-220 | 3270 | 3655 | 1460 | 610 | 24 |
No. | Name |
1 | Explosion-proof device |
2 | Tee type shell |
3 | primary connectoin terminal |
4 | extranal insulation bushing |
5 | Secondary junction box |
6 | discharge valve/Gas charge |
7 | Density Relay |
8 | Base |
9 | Conductive barin series connection |
bell-lartype type | |||||
Type | Dimensions | ||||
A | B | C | D | E | |
LVQB-35 | 1335 | 1630 | 1150 | 340 | 18 |
LVQB-66 | 1695 | 2040 | 1200 | 400 | 18 |
LVQB-110 | 2180 | 2460 | 1290 | 475 | 18 |
LVQB-220 | 3270 | 3655 | 1460 | 610 | 24 |
No. | Name |
1 | Explosion-proof device |
2 | bell-lartype type shell |
3 | primary connectoin terminal |
4 | extranal insulation bushing |
5 | Secondary junction box |
6 | discharge valve/Gas charge |
7 | Density Relay |
8 | Base |
9 | Conductive barin series connection |
Accuracy test
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