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PHASE CONVERTERS

Our rotary phase converters will operate most types of three phase loads. Available in both heavy-duty (for multiple motor loads) and light-duty (for single motor loads). Regardless of duty, they are manufactured for long, trouble-free life and include a steel base, outdoor rated enclosures, ODP or TEFC motors, 600V rated capacitors and no starting circuit.

We also can provide a static converter with the Steelman's H-A-S Static Phase Converter, specifically designed for oil-field pump jacks.

For the best solution to phase conversion, go with our Variable Frequency Drives. They limit your starting current on the single phase side to 300% of the motor's three phase full load amps -- meeting even the most stringent Utility requirements for inrush current. Our drives include:
  • Nema 3R enclosures, painted white.
  • Heavy-duty, industrial-grade side-flanged disconnects, rated for service-entrance.
  • Oversized 10" ventilation fans, with filters easily accessible from the outside. With our oversized fans, we can operate continuously in ambient temperatures of up to 113º.
  • We have two options for non-ventilated enclosures. The first is an air-to-water heat exchanger (with the cooling water supplied by the pump discharge); the second is air-conditioning.
  • For line filtering, we have four options – No line reactor;  3% line reactor;  5% line reactor;  IEEE 519 harmonic distortion filters, all pre-wired.
  • We also provide output filters for submersible pump applications.
  • A single keypad on the outer door, with step-by-step instructions for programming all major parameters. Display shows setpoint, feedback, drive status, amps, output volts, RPM, HZ, run time, and cumulative watt-hours.
  • Selectable process control variable (pressure, flow, temperature, and level).
  • Built-in programming for pipe pre-charge and empty-pipe detection.
  • A real-time fault log that time-stamps all trips.
Our intuitive operator interface and rugged construction standards have resulted in a new generation of variable speed phase converters that are easier to set up, easier to operate, easier to network and more reliable than ever. With hundreds of successful installations, we know what it takes to do a quality job.

 



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