ONE INSTRUMENT FULL LAB Innovation of a VARIABLE TRANSFORMER

to Electrical Industry is like a Wheel to the Automobile Industry. More & more versatility has been introduced to extend its use & convenience.

Digital ON-MOUNTED Meters Variable transformers increase the usage value of such variable transformers.

Full range is available as detailed below.

The idea of Digital Metering

has been further carried forward in DEVELOPING –

ONE METER FUILL LAB CONCEPT

& one Portable Instrument incorporating

Voltage, Current, Watts, Power Factor & Frequency

on a back lit 4 line LCD Display has been a highly accepted . This fulfills the need of Every

ELECTRICAL SHOP, EVERY LABORATORY

Every Electrical Item Manufacturing Unit – Like

FANS, MOTORS, TRANSFORMERS, VOLTAGE STABILISERS,BULBS & PUMPS, ETC.

Apart the metering has RMS Value readings

Metering System with + / - 0.2 % accuracy.

…here are some more details…………………….

Dimmer Dot's WITH PROGRAMMING PAD to ADJUST OVER VOLTAGE & OVERLOAD CUT OFF	Dimmer Dot's WITH PROGRAMMING PAD to ADJUST – OVER VOLTAGE & OVERLOAD CUT OFF	Dimmer Dot's WITH PROGRAMMING PAD HIDDEN To save inadvertent tempering of adjusted controls. Of Over Voltage & Over load Cut Off	Below are also circuits how these Variable transformers are used in Laboratories & equipment etc.

A Variable transformer in a general form – is a Toroidally wound transformer – which is mounted flat on a plate & at right angle to the plate – a shaft moves carrying a Carbon Brush - Spring loaded wipes around the Flat surface made bare free from FACE INSULATION .Since the brush spans more than one turn, the change in voltage is practically continuous. The brush is so designed that excessive heating can not occur in the turns that it spans. The Varying Output Voltage collected from Brush Arm is DISTORTION LESS & exact replica of Input Wave form This – thus provides a honest varying output voltage that is essential required for all purpose testing. It is produced in varying current capacities upto 2000 Amps. Other advantages of this device are

1	2	3	4	5
Analogue Metering of Voltage & Current	General Purpose with Digital Display of Voltage & Output Current	General Purpose Enclosed		Basic

6	7	8	9	10
LED – 3 DIGIT Displays - of Voltage & Current with MCB Trip	LED – 3 Digit Voltasge , Current & Watts with Programming pad to set - Output Cut off Volts & Load Cut off setting	LED – 4 Displays of Voltage, Current, Frequency / PF, Watts TABLE TYPE LAB USE	LCD – 4 Line Display Voltage, Current, Watts & PF PORTABLE ALL PURPOSE INSTRUMENT with Prgramming Pad to Set Output Cut off Voltages & Currents	LED – 7 Segment 3 Digit – Voltage Current & Watts

Control of A.C. voltage in testing and development work. / Over voltage and under voltage tests. / Voltage control of aging racks for lamps, vacuum tubes, dry disk rectifiers, etc. / Voltage control in power supplies -as for Servo-type, Automatic Voltage Stabilizers, constant current supplies etc. / Voltage control for meter calibration, phase-angle control in the calibration of wattmeters and power-factor meters. / Motor speed control. / Control of electric heaters and ovens in laboratory, pilot plant, and production line. / Lighting control in theater, auditoriums, photographic studio and dark rooms. / Testing of Fans, Motors, Tubes, Bulbs, Pumps etc. / Source of Controlled Input Voltage for testing & Calibration of all electrical equipment. Etc etc.