Automatic Voltage Controller

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Number Of FlowerIndoor / Outdoor
CoolingNatural Oil Cooled (upto 5000 KVA) / Air Cooled (upto 500 KVA)
Correction Rate6-8 V / Second (Up to 500 KVA) and 3-4 V / Second (Above 500 KVA)
Wave Form DistortionVirtually Nil
Supply TypeManufacturer, Exporter, Supplier, Retailer
Preferred Buyer Location All over the world

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Company Information

Jindal Rectifiers

Sector 24, Faridabad, Haryana

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Member Since 19 Years
Nature of Business Retailer

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Product Details
Company Details

Number Of FlowerIndoor / Outdoor
CoolingNatural Oil Cooled (upto 5000 KVA) / Air Cooled (upto 500 KVA)
Duty Cycle100% Continuous.
Efficiency (Approx.)99.5% 99% 98.7% 98.25% 98%
Input Voltage (Volts)360-450, 350 - 460, 340 - 480, 320 - 460, 300 - 460
MountingUni-directional wheels
Correction Rate6-8 V / Second (Up to 500 KVA) and 3-4 V / Second (Above 500 KVA)
Temeprature Rise (Max)30 degree centigrade above ambient tem perature
Wave Form DistortionVirtually Nil
Output Voltage400 V +/-1%, 3- Phase, 50 Hz

If you are getting high voltage more than 230 VOLTS SINGLE PHASE/400 VOLTS THREE PHASE

Introduction Voltage fluctuation is a common phenomenon in every part of the country. The industrial units running round the clock, usually face the problem of low and high voltage. 90% of industrial load motors . Electric motors draw considerably high current at low & high voltage. This higher current affects the electrical motors ( particularly smaller capacity motors upto 7.5 H.P.) in three ways:
Higher current produces higher losses in electrical motors which causes premature failure winding. These higher losses of electric motors also increase the losses of cables, switches, transformers and other associated equipments. For smooth continuous operation of motors, overload relays are usually set at 20% higher setting.
Adverse Effects of Single Phasing
The line current increases by 1.5 times. If the relay setting is at 15-20% higher than actual operating current then the relay will take 4-6 minutes to trip. The motor ( particularly smaller capacity motors upto 7.5 H.P) cannot withstand this high current for such a long time and in most of the cases it burns out before the relay trips. Heavy short circuit current flows through the relays, contactors, cable etc. Under this condition when the relay, contactor trips, they produce sparks and some times burst. This further damages the switch gear and in some of the cases may cause fire also.
with the installation of the stabilizer and maintaining 390/400 volts, the motor will operate smoothly drawing 15-20% lesser current and correspondingly the relay setting can be reduced by 15-20% In case single phasing occurs, the relay will trip in 40-50 seconds. The motor can withstand the high current fot this period and will be safe. Also, the relays, contactors, switchgears, etc. incorporated with the motor will be safe

Who Needs A Stabilizer
	The industrial units having acute /higher failure rate of Electrical Equipments such as bulbs tubes, chokes, starter, contactor coils & motors (particularly smaller capacity motors upto 7.5 H.P) etc. should verify that it may be due to HIGHER voltage. You may note down Hourly readings of voltage variation for few days. If you find that input voltage is above 230 volts single phase / 400 volts Three phase even for few hours a day, then you definitely require a stabilizer. How to Access Higher Losses & Low Power Factor in Industrial Units Without Installing Stabilizer Note down hourly readings of current and voltage of one motor operating at constant load for 2-3 days. From the different readings you will observe that the current drawn by the motor is minimum at 390/400 volts as compared to the current drawn at other voltages. This means that power consumed by the motor is minimum at 390/400 volts.
Also note down hourly readings of voltage and K.W. from your Electronic Energy Meter for 2-3 days. From the readings you will observe that K.W. is minimum at 390/400 volts in most of the readings as compared to the higher voltage. If you find that the above collected details are true then you will certainly have the advantages after installing the Servo voltage stabilizer as mentioned on succeeding page.

The table below gives approximate quantitative advantages of Automatic Voltage Controller at various voltage fluctuation levels.

Jindal's" Make Roller Type Regulator	Conventional Make with Carbon Brush Regulator
Power consumption is 0.5 to 1.5% depending upon the input voltage range Suitable for continuous 100% duty cycle Life at full load is 15-20 years Five years unconditional guarantee Negligible losses in full boost & buck condition	Power consumption is 2 to 7% under similar conditions Suitable for only 30% to 40% duty cycle Maximum life is 2-3 years at full load Normally guarantee for one year Max. Losses in full boost and buck condition

General Trend of Voltage During Day Time

340 V - 400V

400 V - 440V

340 V - 400V

400 V - 430V

400 V - 470V

400 V - 450V

9:00 to 12:00 Hrs.

12:00 to 14:00 Hrs.
Lunch Hours

14:00 to 18:00 Hrs.

18:00 to 22:00 Hrs.
Peak Hours Restriction

22:00 to 5:00 Hrs.

5:00 to 9:00 Hrs.

Input Voltage Variation	Possible % Reduction In Breakdown		Possible Appx. Power Saving
Input Voltage Variation	Motor Load Below 10hp	Lighting Load	Motor Load below 10hp	Lighting Load
380-400 volts	Nil	Nil	Nil	Nil & no servo stabilizer required
400-420 volts	5%	10%	3%	5%
420-440 volts	10%	20%	5%	10%
440-460 volts	40%	40%	7%	20%
460-480 volts	60%	60%	10%	30%