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RSHL-300A CT VT Testing Equipment High Accuracy 0.05 class 300A Standard Current Transformer
Product Description
It can be used as a standard instrument for the verification of grade current transformers or for other precision current measurement
The function of the transformer is to reduce the ac voltage and the large current in proportion to the value that can be directly measured by the instrument, so as to facilitate the direct measurement by the instrument, and at the same time to provide power for relay protection and automatic devices.The transformer can measure the voltage, current and electric energy of the primary system in coordination with the measuring instrument and measuring device.Together with relay protection and automatic devices, it can constitute electrical protection and automatic control for various faults of the power grid.It is part of the component of transformer integrated test bench.
Ambient temperature:0°C -- +40°C; Relative humidity should be greater than 80%
Rated Primary Current 5,10,25,50,100,200,300A
Rated Secondary Current 5A
Rated Power Factor =1.0
Rated Capacity 5VA
Rated Voltage 5000/√3V
Rated Frequency 50/150Hz
The Environmental conditions of the Verification:
Temperature 22°C ; Relative Humidity: 52%
Test result:
Insulation Resistance >100MΩ
Power Frequency withstand Voltage:10kV/1min
Polarity: -
Conclusion and explanation:0.05 Class
Note: before delivery, the rated power frequency withstand voltage (10kV) has been tested.
After delivery, the test shall be conducted at 80% of the rated value to do testing.