Economy & Efficiency Through Excellence


Powertek brings you the finest products designed and engineered by the people who have been in the same field for the last 30 years. Rectifier is an economical and most efficient method of obtaining DC from AC supply. Powertek manufactures a wide range of rectifiers covering 0-500 Volts and upto 30000 Amps. capacity suitable for Electroplating, Anodizing, Hydrogenation and many other Electrochemical processes. The entire manufacturing process is under one roof ensuring 100% quality control at every stage of production. We believe in quality & customers satisfaction.








Other Electrochemical Process

Brief Specifications
Input Voltage
380-440 Volts, 3-phase 50 hz. AC supply
Output Voltage
Fixed Rated maximum DC voltage or variable from zero to maximum rated voltage
Output Current
Rated maximum DC current
Temperature Rise
Less than 45° C above ambient at the top of the oil
12V Rectifier - 82%, 24V Rectifier - 90%, 100V Rectifier - 94%, 200V

Rectifier - 96% More than 250V Rectifier - More than 97%
Ripple Content
Less than 5%
‘A’ class for oil cooled

Starting Circuitry

Powertek Rectifiers are designed for 3 phase, 50 Hz AC input supply and are available for operations at any voltage between 380 and 440 volts, covering a wide range of voltage fluctuations. It is recommended that the input to the rectifier should be connected through a proper protective device, to provide positive protection to personnel and the system, in the event of maintaining or in case a fault occurs.

DC Output Control

The function of the variable output controls is to control the voltage or current or its operating range by varying input voltage to the main transformer primary. The DC output voltage variation is achieved sleeplessly 0-100% by means of an ON LOAD roller type voltage regulator.

Salient Feature

    • DIODE: Silicon diodes are tested in house, similar PIV batch and same
      forward drop diodes are used in the equipment for equal load sharing and
      reducing the power losses of diodes.
    • LAMINATION CORE: We use imported CRGO Lamination core which have
      minimum power losses and results in better efficiency of equipment and
      savinginenergy bill.
    • PAINTS: Epoxy paint is used which is resistant to acidic environment of
      plating process and enhance the life of the equipment by preventing it
      from corrosion.
    • METER: We use reputed make DC meters only which are very accurate
      and durable.
    Electronic attachment with rectifier equipments, which will maintain
    constant Output Voltage or Current as per setting automatically-
    irrespective of input voltage variation
Roller Type Regulator Thyrisotrised Control
No wave form distortion at any load. Electrical
wave form i like a moving wheel. For 50% Rated
Voltage the Dia of wheel is reduced accordingly i.e.
magnitude for a wave is decreased
Wave form distortion. It is like cutting the wheel by
50% and then moving the wheel ie. wave form is cut
as shown at full magnitude
Higher power factor of more than 0.95 is achieved
The power factor is lower between 0.5 to 0.9
The system is simple and can be repaired and maintained even by simple mechanic
The system is specified and needs specially trained Electronic Engineer to repair and maintain.
The cost of spares is very negligible
The cost of replacement is very high
Over all losses is less
Over all losses is more

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