Continuous Strip Line Power Supplies

 

Rapid Power Technologies offers a complete line of high efficiency DC power supplies for the cleaning, pickling, treating and finishing of steel in continuous strip operations.

Our units are designed, built and tested in accordance with ANSI C34.2 specifications, and are available with ratings from 6 to 100 volts and 50 to 50,000 amperes.

The power supplies may be forced air-cooled, direct water-cooled or closed loop liquid-cooled.

Cleaning, pickling, and treating rectifiers contain solid state polarity reversing, with the Rapid exclusive "brain" to provide instantaneous, on-load forward or reverse current.

All units may be interfaced with a PLC, either digitally, via an RS 422/485, using industry standard protocols, or through an isolated analog interface, so the current may be controlled as a function of line speed.

 

Specifications

AC Input Voltages: From 208 Volts, 3-phase
to 15 kV, 3-phase, 50 or 60 Hz
DC Output Volts: To 100 volts
DC Output Amps: To 50,000 amps
Regulation: ±0.5% current, no load to full load, 10% line voltage variation (±0.1% available on special request)
Control: Silicon controlled rectifiers (thyristors)
Transformer: Dry type - all copper construction
Pulses: 6, 12

 

Standard Features

  • Copper bus
  • PLC Interface
  • High efficiency
  • AC contactor
  • Precision shunt for control and metering
  • Forced sharing of parallel thyristors (no matching required)
  • Remote control
  • Copper transformer with Class H insulation
  • Powder coated enclosure for maximum corrosion resistance
  • 40° C ambient

Standard Protection Features

  • Individually fused thyristors
  • Thyristor thermal sensors
  • Transformer thermal sensors
  • Electronic peak overload detector
  • Electronic current limit

Optional Features

  • Trigger fuses
  • AC circuit breaker
  • Redundancy (N+1) SCR's
  • Lifting eyes
  • Special paint
  • 50° C ambient
  • NEMA 4, NEMA 12 or NEMA 3R, or NEMA 4X

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