✦Technique Feature

As impressed current corrosion protection device, Step Tapped Transformer Rectifier use
open-loop bridge-type rectification, and the DC output is controlled by rotary tap switches.
This product is simple in structure, easy operation, and high reliability, suitable for using in
the wild environment. All the components can resist high temperature, using short jumper
to adjust the output voltage. There are two main types of transformer rectifiers, including
Air-Cooled and Oil-Cooled, the selection based on the environmental conditions, hazard,
high temperature or high humidity environment need Oil-Cooled device. Rated output power
will determine the physical size and cost of the unit. It can increase solid state variable interrupter.

No.Size（W*D*H）mmCooling TypeSuitable PowerRemark

1400*200*200Air-Cooled600VAPortable

2620*550*850Air-Cooled3KVASingle

3800*600*1600Air-Cooled10KVASingle

4550*400*920Oil-Cooled5KVAFront-Behind

5600*860*1225Oil-Cooled10KVAFront-Behin

✦Specification

※Input Power Supply：1 Phase and 3 Phase, from 110V~690V , 50/60Hz

※Output Voltage：0 to 100Volts DC

※Output Current: 0 to 500Amps DC

※Ambient Temperature: -20~55℃

※Output Control: 16steps, 25steps, 64steps

※Protection: RCCD/MCB and fuse protection, Surge suppression, Lightning Arrestors

※Monitoring: 4~20mA, relay dry contact

※Ripple in rated power: ≤5%(3 Phase), ≤10%(1 Phase)

※Display: output current, output voltage, runtime

※Display: output current, output voltage, runtime

※Efficiency: ≤80%

Note: Other voltages and current are available per request.

✦Testing

The following test shall be tested at the factory on the complete transformer rectifier unit as a  minimum.

※Efficiency test of Transformer Rectifier Assembly at 25%, 50%, 75% and 100% rated output  current.
Efficiency test of Transformer alone after isolating rectifier at 100% rated output   current.

※Insulation  resistance  test  using  500V  Megger  for transformer  

※Between primary and secondary, primary and earth, secondary and earth.

※Hear  run  test  for  maximum  temperature  rise  to  be  conducted  for  transformer,
filter  choke,  and Diodes, at max output  current for 48 to 72 hours continuous operation.

※Wiring connection integrity.

※Circuit continuity and compliance

※High voltage insulation resistance test
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