Dry-type current transformer is made from the load fluid, the core body capacitance, outer sheath, sheds, secondary winding, the bottom of the box, end structure and other major components.The bottom of the terminal box is equipped with measurement, partial discharge and dissipation factor measurement will be open to use, the normal operation should be grounded.
Standard

GB 1208-2006
Model No.
LGB-1
L:CT, Current Transformer G:Dry type, no-filling B:With protection winding 1:Rated voltage, kV
Product Features
*Dry capacitor type insulation, not oil-filled, non-gas-free porcelain
*a high level of anti-contamination
* Maintenance-free
Service conditions
Ambient air temperature:-50 centigrade ~ +50 centigrade
The altitude:≤1000m, if higher, amend according to GB 311
* contamination level:
I level or ii level (by default, equivalent to ceramic grade IV)
Main performance indexes
*Rated voltage:35kV66kV110kV220kV
*Rated primary current:≤3150A
*Insulation level:

*temperature:≤85K
*Rated secondary current:5A or 1A
*Rated capacity:10 ~ 60VA
*accurate measurement of winding level:0.5, 0.5 S, 0.2, 0.2 S, etc.
*protect the winding accuracy level:5P, 10P, 5PR, 10PR, TPY
Electrical test
60s-frequency withstand, partial discharge testing, dielectric loss and capacitance, the error test, volt-ampere characteristics test, polarity test, open circuit voltage test, etc.
Operation and maintenance

Maintenance
Ordering Information
*need to provide the rated voltage, rated current, the amount and nature of the secondary winding
Able parameters (such as the rated current ratio, winding accurate grade, rated load and other parameters).
*For the protection of windings, also need to provide an accurate limit factor.
*For winding TPY level protection, the need to provide duty cycle, short-circuit system Number, keeping accurate time and other parameters.