TEST-903 primary current injection test kit adopts ARM chip to control the output process and large capacity of toroidal transformer. It is equipped with LCD screen display current meter, also showed primary current value, secondary current value, turn ratio and the phase shift. Aluminum alloy body with PC panel component the shell. TEST-903 is mainly applied to test CT turn ratio and polarity in the power system, the contact resistance, high voltage circuit breaker protection test and high voltage generator test etc, which need large current on-site or in the lab.





Electrical parameters
Accuracy ±0.5%
Power Supply(AC) 380V·50A, 50Hz/60Hz
Current Output (AC) 3000A·5V or 1500A·10V
Capacity 15KVA
The current output waveform distortion ≤5%
Primary current
Range 0-3300A
Resolution 0.1A
Accuracy <0.5%
Secondary measurement
Range 0-6A
Resolution 0.001A
Accuracy <0.5%
Current duration
3000A range 3000A     2-3minutes
1500A      3-6minutes
1500A range 1500A      2-3minutes
With timer
Range 0.0001~999.99S
Resolution 0.001S
Accuracy <0.5%±5 words
Mechanical parameters
Dimensions (W×D×H) (mm) 380×350×360 and 340×290×420
Weight(kg) Control Host 48kg,
External voltage regulator weight 42kg
Environmental conditions
Temperature -10°C to 40°C
Relative humidity ≤80%