Industrial Transformers

Superior Features Of Servomax Make AVC.

Temperature Rise

It is designed for 30-35 degree C above ambient. Suitable for any kind of ambient temperature conditions.

Core

Core is constructed from Low Loss of CRGO M-4 Grade confirming to latest standards & is fitted & clamped with special built in-house frames to reduce the magnetic noise & to make the structure rigid & robust.

Windings

Use paper covered electrolytic grade copper strip for winding. Cooling ducts are provided to keep the hot spot temperature as low as possible.

Tanks & Paint

Tanks are made of M.S. Sheets with adequate bracing & stiffeners are given a coat of Epoxy Primer & Epoxy paint for better life. Both light grey & Siemens grey (RAL 7032) are available in colour.

Oil

Oil of IS: 335 standard is being used & is filtered before topping.

Technical Specifications

SERVOMAX Servo Stabilizer are available in wide range & various models according to customer’s requirement for Balanced / Unbalanced supplies with following specifications:

Input Voltage	360-460 V	360-460 V	320-480 V	300-480 V	280-500 V
Efficiency (Approx.)	99.5%	99.3%	99%	98.8%	98.7%
Output Voltage	400 V ± 1% 3Phase, 50 Hz*			.	.
Cooling	Naturally Oil Cooled			.	.
Type	Indoor / Outdoor	Response Time:	Instantaneous		.
Temperature Rise ( Max.)	30^oC above ambient	Accuracy:	± 1%	.	.
Mounting	On Uni-directional Wheels	.	.	.	.
Wave form distortion	Nil	.	.	.	.
Duty Cycle	100% Continuous	.	.	.	.

Comparison Between Servomax make & Conventional make Automatic Voltage Controller

Servomax make roller type regulator	Conventional make with carbon brush regulator
Power consumption is 0.5 to 1.5% depending upon the model and input voltage variation Suitable for continuous 100% duty cycle The carbon (graphite) Roller rolls, while moving on the coil track, so contact Point of the roller goes on changing which prolongs the life of the rollers Life at full load is 15-20 years Negligible losses in full Buck / Boost Condition Five years Unconditional Guarantee	Power consumption is 2 to 7% depending upon the model and input voltage variation Suitable for only 50% to 60% duty cycle Since the contact is by brush having flat surface, wear & tear of the brush is more and requires frequent replacement Maximum life is 3-5 years at full load Max. Losses in full Buck/Boost condition Normal Guarantee/Warantee for one year

Servomax make roller type regulator

Conventional make with carbon brush regulator

Power consumption is 0.5 to 1.5% depending upon the model and input voltage variation
Suitable for continuous 100% duty cycle
The carbon (graphite) Roller rolls, while moving on the coil track, so contact Point of the roller goes on changing which prolongs the life of the rollers
Life at full load is 15-20 years
Negligible losses in full Buck / Boost Condition
Five years Unconditional Guarantee

Power consumption is 2 to 7% depending upon the
model and input voltage variation
Suitable for only 50% to 60% duty cycle
Since the contact is by brush having flat surface, wear & tear of the brush is more and requires frequent replacement
Maximum life is 3-5 years at full load
Max. Losses in full Buck/Boost condition
Normal Guarantee/Warantee for one year

Advantages

1. Power Saving ( Reduction in Power Bills )
2. Reduction in breakdown of electrical / electronic equipments
3. Reduction in MDI
4. Improvement in Power Factor (At Higher Voltage)
5. Uniform Quality / Lesser Tripping
6. Improvement in quality of end products
7. Better Efficiency in Plant
8. Unmeasurable Benefits
9. Depreciation as per income tax act (In India Only)

Payback Period

It has been assesed with long experience & customer’s feedback that the payback period of Automatic Voltage Controller is well within 6-12 months depending upon the site conditions.

Industrial Transformers