Plating Anodizing Rectifier

DC Rectifier Transformer

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 then 35ºC above ambient at the top of the oil
Efficiency	12V rect - 82%, 24V rect - 90%, 100V rect - 94%, 200V rect-96%
Ripple Content	Less Than 5%
Insulation	‘A’ class for oil cooled

Salient Features:

Electrolytic Prime grade copper strip to minimize power losses
Suitable for over loading conditions
Vertical rolling contact type voltage regulator
The carbon rollers move on both sides of the winding
Diodes: Silicon diodes are tested in-house, similar PIV batch
Lamination Core: CRGO lamination core are used for minimum power losses
Paints: epoxy paint which is resistant to acidic environment of plating process and provide insulation from rust
Meter: DC meters with AE/RISHAB make
Constant voltage controller (Cvc): CVC electronic attachment with rectifier equipment for maintaining output voltage or current
Servicing: As early as possible

Advantage of Roller Type Regulator as Compared to Thyristor Control:

Roller Type Regulator	Thyristor Control
No wave form distortion at any load.	Wave form distortion.
Electrical wave form is like a moving wheel. For 50% Rated Voltage the Dia of wheel is reduced accordingly i.e. magnitude for a wave is decreased.	It is like cutting the wheel by 50% and then moving the wheel i.e. 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 specialized and needs specially trained Electronic Engineer to repair and maintain.
Over all losses are less.	The cost of replacement is very high.
-	Over all losses are more.

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