GELCO has recently introduced a new series of Servo Voltage Regulators with latest micro-controller based technology to upgrade and ensure higher accuracy reliability and hassle free maintenance.

Servo Controller Voltage Regulators (SCVR), a technical overview

SCVR ’s are simple high speed electromical device that provides accurate constant A.C. output.

Principle of Operation
Basic electrical block diagram of SCVR has been shown in figure-1. SCVR consists of variable auto transfomer, buck-boost transfomer and servo motor Along with control circuit. Servo motor plays vital role to control desire output voltage, it will work as per control signal given by electronic circuit. Hence Micro controller based electronic circuit will enhance accuracy and reliability.

Control circuit (SCU) put a photo of SCU here
gelco has design and developed a unique control unit (SCU) with latest micro controller based technology.
SCU has saliant features like:
SCU display output voltage (Single Phase)
It has facility to see input voltage.
It measure and display true rms voltage.
Desired output voltage can be programmed by SCU through programming key pad.
Over voltage limit can be programmed from SCU.
It has seven segment display.
Hasseel free replacement as it is detachable unit.
DIN size enclosure (72 x 72).

Types of SCVR
GELCO has SCVR for both single and three phase load in three phase supply condition.SCVR are availabel in two different configurations.

Balance Type
In balance type SCVR a single three phase auto transformer will control output voltge. it means in case of any unbalance in input voltage supply, it will reflect same into output voltage.

Unbalance Type
In unbalance type SCVR, three separate auto transformer will control individual phase. thus it will give balance output inrespective of input supply condition.