PI-250B Portable High-Current Test Set

An extremely small yet powerful high-current test set capable of generating up to 1,000A. The PI-250B Portable Current Power Supply incorporates the flexibility to provide unequaled capability in a portable package. The PI-250B generates continuous current of 250 amps with peak maximum output 750 amps through a breaker and 1000 amps into a short, all on 120 VAC supplies. The unit weighs no more than 35 pounds, allowing easy mobility.

Overview

The PI-250B Portable Current Power Supply provides unequaled capability in a portable package. The PI-250B generates continuous current of 250 amps with peak maximum output 750 amps through a breaker and 1000 amps into a short, all on 120 VAC supplies. The unit weighs no more than 35 pounds, allowing easy mobility. Basic operation is very simple, and the proven instrumentation provides optimal output control and measurement.

The PI-250B features digital readouts of current and time enhanced by digital signal processing. Automatic pulse (memory) mode provides fast and accurate evaluation of output current pulses as short as one half cycle. The PI-250 incorporates a PIC micro-controller with a precision A/D converter and special firmware for true RMS continuous and pulse current reading with high accuracy. It also utilizes a sophisticated current sensing system for more reliable current latch mode operation and better timing accuracy. A 4-digit readout for current in eight ranges from 5.000 A to 1000 A full scale with automatic over-range detection reduces the chance of operator error. An integral auto-ranging timer display with four digits in seconds or cycles mode, with a resolution of 0.001 second or 0.1 cycle. The entire metering and control package is combined on a single PCB which can be removed and replaced very easily for efficient maintenance and repair. The PI-250B provides four output taps which range from 0- 3.5 volts at 200 amps to 0-130 volts at 5 amps continuous, and pulse output up to 5x. The convenient connectors for the heavy cables for high-current use heavy duty binding posts and the lower current outputs plugs which accommodate and smaller wires. The unit is housed in a rugged, lightweight aluminum case with a water-resistant seal and a removable lid which has room for storage of power cord and output leads. The front panel is a durable plastic overlay which can be wiped clean easily and safely, and the tactile keypad provides long-lasting and reliable operation with positive operator feedback.

Applications

The PI-250B is a versatile and technologically advanced primary injection test set capable of testing circuit breakers, motor overload relays, and ground fault trip devices, magnetic, thermal or solid state. The test set can also be used on high current applications like ratio transformers, and heat runs.


Electrical Test Instruments, LLC
1301 Avondale Rd #J, New Windsor, MD 21776
Phone: 410-857-1880
Fax: 410-857-1387
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