✦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.
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