Stepless variable Transformer Rectifier

Stepless variable Transformer Rectifier

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SVTR

As impressed current corrosion protection device, Stepless variable Transformer Rectifier use open-loop
bridge-type rectification, and efficiency is more than 80%. It has simple structure, convenient operation and
high reliability. All the components can resist high temperature, using short jumper to adjust the output voltage.
We have rich experience in this type.

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.
Left is Oil-Cooled, while Air-Cooled is on the right as following picture showing.  
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-behind


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 or 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: 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.

Heat  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.
                                                                                                                                                                                                                              DOWNLOAD



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