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80% of the power frequency withstand voltage
the leak rate is low
high operating reliability
good safety performance
Release time :
2012-8-22 Product Description: Product role With 72.5 ~ 550kV GIS Current Transformer, sulfur hexafluoride gas insulation, mainly used in power systems power measurement, current measurement and relay protection.
1, insulation stable: 80% of the power frequency withstand voltage under the partial discharge amount not greater than 5pC.
2, the leak rate is low: annual leakage rate of less than 0.3%, far better than the 1% of the requirements of the GB.
3, high operating reliability: pressure SF6 gas zero table, safe operation can be a long time.
4, good safety performance: explosion-proof device with excellent explosion-proof performance.
5, high precision: measurement up to meet the 0.1 level.
6 protection: protect the winding core of high permeability and saturation flux density is high (greater than 1.8T).
L (S) R-72.5
L (S) R-126
The devices rated voltage, kV
The * Device highest voltage, kV
Rated frequency Hz
* Short-time power frequency withstand voltage, kV
* Lightning impulse voltage, kV
Partial discharge level (1.2Um / √ 3)
* Rated current, A
* Rated secondary current, A
5 or 1.
* Accuracy class (subject combinations)
0.2S; 0.2; 0.5S; 0.55P; 10P
* Rated output, VA
Safety factor, FS
5 or 10
* Accuracy Limit Factor, ALF
Short-term thermal stability current, kA / s
31.5-63 / 3
Rated dynamic current, kA
SF6 rated pressure (20 ° C), Mpa
A SF6 Buqi pressure (20 ° C), Mpa
SF6 gas leakage rate,%
SF6 moisture content, μL / L
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