Tests of current transformers

Current source WP-100


WP-100 is assigned for continuous operation with current range from 0 to In, and voltage range from 0 to 250 V. Current circuit is isolated from power supply network. Voltage circuit has galvanic connection with power supply network. Current source has digital display for showing values of forced current, voltage and time. Device is equipped with over current and thermic safeguard, what protect it from overheating or failure. Control of current source operation is provided by choose one of 5 different operation modes.


Source WP-100 is assigned for supply devices, which request checking and for regulations of circuits, dependent on current value e.g. current transformers, over current relays etc.


Load current Izn 100 A
Max. power 500 VA
Output voltage regulation range 0 ÷ 250 V (for current 0,8 A)
Allowable uncertainty of voltage measurement ±(0,2 % of reading + 2 digits)
Allowable uncertainty of current measurement ±(0,2 % of reading + 2 digits)
Rated power consumption 600 VA
Operation temperature -5 ºC ÷ +40 ºC
Power supply 230 V, 50 Hz
Dimensions 475 x 357 x 176 mm
Weight about 25 kg


All questions should be directed to:

  • Zygmunt Pilny MSc Eng., , +48 32 237 66 70