It can be used as a standard instrument for the verification of grade current transformers or for other precision current measurement
Ambient temperature:0°C -- +40°C; Relative humidity should be greater than 80%
- Please be careful not to seriously collide with the machine due to its epoxy resin casting.The machine should be moisture-proof and soiled.And the surface of the instrument should be wiped with a clean cloth before the test to prevent creepage along the surface
- In the process of measuring the current,do not allow sudden interruption in the current,so easy to cause remanence in the iron core,easy to cause a large error in the measurement.
- Special attention should be paid to the fact that in the process of measurement,the secondary coil loop should be firmly grounded,and no open circuit should be opened to avoid the generation of high voltage,so as not to harm people.
||Primary connection method
||Secondary connection method
- Primary and secondary current ratio:5,10,25,50,100,200,300/5A
- Rated frequency:50Hz
- Power factor:1.0
- Rated load:5VA
- Accuracy level:0.05 Class
- Rated working voltage:5/kV
- Power frequency withstand voltage test:one to two and to the ground 10kV/1min, two to the ground 2kV/1min.
- Note:At the time of delivery,the rated power frequency withstand voltage test value(10kV)has been tested.After delivery,80% of the rated value should be tested according to the regulations.