M-133i

One-phase Electric Power/Energy Calibrator

Model M-133i master unit is one phase electric power/energy calibrator. The unit creates also master unit in three-phase power/energy calibartion systems. It can supply unit under test with one phase accurate AC voltage and current with calibrated phase shift or DC voltage and current. Output voltage can be set in five ranges up to 280 V and output current in six ranges up to 30 A. Simulated electric power can be set independently in each phase. Frequency can be set in range from 15 Hz to 1 kHz with resolution 0.001 Hz to 0.01 Hz. Calibrator is equipped with 5 1/2 digital DC meter with DC ranges 20 mA or 10 V for direct calibrating of various types of power transducers.

Against full version M-133 the "light" version doesnot offer non-sinusoidal output wavefrmes. Ranges and accuracies of M-133i version sinus output are identical to M-133 model features.

Three-phase electric power/energy calibration system can be optionally built-up using one M-133i master unit and two M-133if slave units. The slave units contain power stages of each additional phase output. They are fully controlled from master unit via rear panel special interface. Maximum output voltage between two phase voltages is 560 VAC. Current outputs can be joined together offering total range to 90 A AC/DC.