IGBT Stabilizer | PWM Stabilizer | Static Precision Voltage Regulator | Single Phase Servo Stabilizer | Three Phase Servo Aircooled Residential | Three Phase Servo Aircooled Industrial | Three Phase Servo Oilcooled Industrial | Isolation Transformer | Auto Transformer | Electroplate Rectifier & DC Power Supply

The EBs are unable to keep pace with the power supply for the constantly growing demand by the industrial sector and housing sectors. Added to this, periodic variation in demand like peaking and sags gives rise to erratic voltage variations over the day. The neighbourhood of the industrial belt is subjected to violent Voltage fluctuations like Sags (Brown outs) when a big machine is switched ON, or a Surge when a big motor is switched OFF, which a servo stabilizer cannot correct. The causality of these highly fluctuating and noise ridden power supply are the expensive machines leading to huge loss of productivity added to the cost of repairs.

Vulnerable loads which require special protection: Protection by Technohertz’s SPVR

CNC & Robotics

Textile Machineries

Cement Industries

Automobile Industries

Sound(Music)Studios

Oil & Gas

Pharma Industries

Medical Equipment

R & D Laboratories

Entire Building

Lifts

AC Plants

Auditorium

Radar & Telecommunication

Printing & Packing Machinery

Chemical & Plastic Industries

Wood Processing Industries

Protect your expensive machinery and equipment from these aberrations by installing Technohertz Static Precision Voltage Regulator (SPVR).

The salient features of the SPVR technology are

Its ability to correct sags and surges
It does not introduce any noise
Using high efficiency device like IGBT reduces loss and pays back faster
The need for periodic service is eliminated and its rugged design ensures very low down time
SPVR technology does not expose the sensitive load to the raw mains

Why Technohertz Static Precision Voltage Regulator?

Technohertz Static Precision Voltage Regulator is the state of the art product making use of the advantage of the latest high frequency device: Insulated Gate Bi-polar Transistor (IGBT). SPVR’s unique and high speed sensing circuit senses the voltage every 10 millisecond and corrects in the next 10 millisecond. Effectively the SPVR corrects the voltage within a cycle. This ensures almost a rock steady output voltage.

Added features:

Technohertz SPVR works much cooler and with greater efficiency. Ergonomically placed digital meter on the front of the regulator displays the input & output parameters with great accuracy.

The difference between other stabilizer technology and Technohertz Static Precision Voltage Regulator (SPVR) is shown below.

COMPARISON OF VARIOUS TYPES OF VOLTAGE REGULATING DEVICES

Features	Servo Control Voltage Stabilizers	CVT Ferro Resonant Transformer	Online UPS	Automatic TAP Changer	SPVR IGBT based Solid State PWM Technology
Step less Correction	Yes	Yes	Yes	No	Yes
Correction Speed	Slow	Fast	Fast	Slow	Fast
Response to sag and swells	Does Not Respond	Responds	Responds	Does Not Respond	Responds, Corrects sags & swells
Surge and spike suppression	Do Not Suppress	Do Not Suppress	Suppresses	Do Not Suppress	In-built Suppressor
Load regulation	Good	Bad	Good	Good	Very Good
Overload capacity	Very Good	Bad	Moderate	Good	Very Good
Moving parts	Yes	No	No	Yes	No
Maintenance requirement	Maintenance is needed	Capacitor requires replacement	Battery replacement is expensive & needs replacement once in few years	Relays needs replacement	No maintenance required
Energy efficiency	Efficient	Very inefficient	Not Very efficient	Efficient	Very efficient
Output overshoot	Yes	Yes	No	Yes	No
Soft start	No soft start	No soft start	Soft start available	No soft start	In-built Soft start
Cost of ownership	Moderate. Frequent maintenance required	Inefficient device. High power consumption	High. Because of batteries that require maintenance	Moderate.	Low

Available Models:

Single Phase

Parameter	Models	Normal Range	Wide Range
Electrical		+/- 20%	+/- 26%
	Available Rating in kVA	NA	5, 7.5, 10, & 15 kVA
	Technology	IGBT based high frequency PWM voltage corrector
Input	Input voltage	NA	170 VAC to 290 VAC
	Cut-off Voltage setting	NA	5% to 15% on lower side and 5% to 12.5% on the higher side
	Operating frequency	NA	47 to 63 Hz
Output		NA	230 VAC+/-1% Can also be set to 220 VAC to 240 VAC
Output		NA	Can be set to any accuracy > 1%
Annunciation		NA	0.39” 6 digit numeric display
Operating Ambient		NA	50°C max
Cooling		NA	Forced air
Protection		NA	Overload and Short circuit protected.
Input working range for cut-off set at -10 % and +7.5% default factory setting	Low Side		150 VAC
	High Side		319 VAC

Three Phase

Parameter	Models	Short Range	Normal Range	Wide Range
Electrical		+/- 13%	+/- 20%	+/- 26%
		15, 30, 45, 60, 75, 100 & 125kVA	15, 22.5, 30, 45 & 60 kVA	15, 22.5, 30, 45 & 60 kVA
	Technology	IGBT based high frequency PWM voltage corrector
Input	Input voltage	348 VAC to 452 VAC	320 VAC to 480 VAC	290 VAC to 500 VAC
	Cut-off Voltage setting	5% to 15% on lower side and 5% to 12.5% on the higher side	5% to 15% on lower side and 5% to 12.5% on the higher side	5% to 15% on lower side and 5% to 12.5% on the higher side
	Operating frequency	47 to 63 Hz
Output		400 VAC+/-1%. Can also be set at 380 VAC to 415 VAC
Output		Can be set to any accuracy > 1%	Can be set to any accuracy > 1%	Can be set to any accuracy > 1%
Annunciation		0.39” 6 digit numeric display	0.39” 6 digit numeric display	0.39” 6 digit numeric display
Operating Ambient		50°C max	50°C max	50°C max
Cooling		Forced air	Forced air	Forced air
Protection		Overload and Short circuit protected.	Overload and Short circuit protected.	Overload and Short circuit protected.
Input working range for cut-off set at -10 % and +7.5% default factory setting	Low Side	313 VAC	288 VAC	261 VAC
	High Side	485 VAC	516 VAC	537 VAC

METERING & OTHER FEATURES:

Operating Frequency	47 to 63 Hz
Protection	Output Low and Output High Voltage cut-off
Over load	Cuts off output above 110% Load
Short Circuit	Output is isolated either electronically or through the MCCB whichever responds first
Optional	EMI/RFI Filter
Inbuilt	Surge suppressor
Meter	6 digit 0.39” Numeric Display
Displays for Single Phase	Input Voltage Output Voltage Output Current
Displays for 3 Phase	Input Phase Voltage Input Line Voltage Output Phase Voltage Output Line Voltage Output Current
Meter accuracy	1%
Efficiency	>96% from 20% to 100% load
User Setting	Scroll through up down keys, continuous auto scroll or freeze at any parameter
Switch on time delay	Default 15 seconds (or) settable to 30 seconds
Fault annunciation	Input low or high, output low or high, overload, high temperature.
Maximum Operating Ambient	50° C at full load
Humidity	95% non condensing