Model 935A Current Source

The Arbiter Systems^®, Inc. Model 935A Current Source is designed to drive high currents, up to 1000 amps rms, through low impedance loads. Output current is produced at the input line frequency through a toroidal current transformer. The input line level is selectable from 100, 120, 200, 220, and 240 volts rms. An output range selector switch and variable transformer allow easy setting of the output current within the attainable range.

The Model 935A is an ideal source for testing instrument current transformers. Use the Model 935A Current Source in conjunction with the Model 931A Power System Analyzer and the Model 936A Reference Current Transformer to accurately measure the ratio and phase angle errors on a wide variety of current transformers.

Model 935A Specifications

Input:

Line (selectable) 100, 120, 200, 220, 240 Volts

Frequency 50 or 60 Hz

Output:

Current 1000+ Amps

Power 840 Watts rms, maximum

General:

Physical:: Case Size 205 x 305 x 225 mm (8 x 12 x 8.75 in.)
483 x 483 x 483 mm (16 x 16 x 16 in.), shipping; Weight 16 kg (35 lbs) maximum; Current Transformer 90 mm (3.5 in.) ID Nominal, 3 m (10 ft) cable length
Environmental:: Temperature, operating: 0° to +40° C; Temperature, nonoperating: -40° to +85° C; Humidity Noncondensing