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In our Ferro Resonant type Constant Voltage Transformers - CVT, the AC mains power the input winding, which is widely separated physically from the isolated output winding. The input winding normally runs at very moderate Flux linkage levels. The output winding exhibits an intrinsic energy characteristic and this energy storage operate in conjunction with mains capacitor to produce self-generated AC flux Field which is indirectly extracted from the Input Winding.

These Constant Voltage transformer or CVT use a tank circuit composed of a high-voltage resonant winding and a capacitor to produce a nearly constant average output with a varying input. The ferroresonant approach is attractive due to its lack of active components, relying on the square loop saturation characteristics of the tank circuit to absorb variations in average input voltage.

The ferro-resonant action is a flux limiter rather than a voltage regulator, but with a fixed supply frequency it can maintain an almost constant average output voltage even as the input voltage varies widely.

All problems related to variation / fluctuation in Voltages are effectively handled because of this principle and a constant voltage output of ± 1% is given.

RATING AVAILABLE : 250 VA TO 10 KVA

Banking upon in-depth knowledge , expertise, and years of vast experience, we are engaged in manufacturing and supplying Oil Cooled Industrial Servo Voltage Stabilizer. To comply with set industrial norms, we use premium quality raw materials and parts to manufacture this oil cooled voltage stabilizer . This stabilizer can overcome and control voltage fluctuations provide the desired constant output voltages. We check this Oil Cooled Servo Voltage Stabilizer on performance and efficiency parameters to provide the best range to clients.

RATING AVAILABLE : 10 KVA TO 2000 KVA

Our offered Dry Type Transformer is specially designed to transfer electrical power from alternating current power source to other equipment while isolating the powered device from the power source. These Dry type Isolation transformers provide galvanic isolation and used for protecting against electric shocks, suppress electrical noise in sensitive devices and transferring power between two circuits connected together. Electrostatic shield coated transformers are used for power supplies for sensitive equipment such as computers or laboratory instruments. industrial Customers highly prefer our range for its high efficiency, reliability, accuracy, compact designing, rugged construction, free standing, high insulation values and floor mounting model.

Key Features of These dry type transformers are :

• Suitable for use with modern sophisticated micro processor based equipment, CNC machines, computers and other Industrial processing.
• Supply and outgoing terminals brought out with proper brass bolts and double nuts and washers under sheet secured cover with proper marking.
• Isolates the equipment from noisy power line
• Reduces Power line noise, surges, spikes & transient
• Provides the complete electromagnetic & electro static shielding

Rating Available: 1 KVA to 1000 KVA

Single and Three Phase / Air and Oil Cooled
(Special Input and output Voltage ranges also available on request)

Additional Information:

• Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)

We are one of the trusted traders, suppliers, manufacturers and exporters of Isolation Transformer to our widely spread clients. It includes Isolation Transformer, Ultra Isolation Transformer, Single Phase Isolating Transformer, Step Down Insulation Transformer and Step Up Isolation Transformer. All these are fabricated at our unit under the strict supervision of our experts, making use of high quality raw material and machinery. Isolation Transformer has gained us huge appreciation from our clients leading to highly increasing demands in the market.

 

An isolation transformer is a transformer used to transfer electrical power from a source of alternating current (AC) power to some equipment or device while isolating the powered device from the power source, usually for safety reasons. Isolation transformers provide galvanic isolation and are used to protect against electric shock, to suppress electrical noise in sensitive devices, or to transfer power between two circuits which must not be connected. A transformer sold for isolation is often built with special insulation between primary and secondary, and is specified to withstand a high voltage between windings.

 

Isolation transformers block transmission of the DC component in signals from one circuit to the other, but allow AC components in signals to pass. Transformers that have a ratio of 1 to 1 between the primary and secondary windings are often used to protect secondary circuits and individuals from electrical shocks. Suitably designed isolation transformers block interference caused by ground loops. Isolation transformers with electrostatic shields are used for power supplies for sensitive equipment such as computers, medical devices, or laboratory instruments.

 

Features / Advantages of Isolation Transformer :

•

Filters Power Line Noise, Spikes and Transients.

•

Isolates Sensitive Equipment's from Noisy Power Lines.

•

Complete Electrostatic Shielding.

•

Minimizing Common Mode Noise by Over 130dB.

•

Minimizes Transverse Mode Noise.

•

Line and Load Regulation better than +3.5%.

•

Quality Components, Conservating Ratings and Rugged Design for Best Long Term Value.

Ratings : 1 KVA to 500 KVA ( 1 / 3 Phase)

Other Information
•Pay Mode Terms: L/C (Letter of Credit), T/T (Bank Transfer)

Industrial Automatic Voltage Regulator We are manufacturer, exporter and supplier of industrial automatic voltage regulator which are been used for various applications and are widely known as servo voltage stabilizers or regulators.. It is a proven fact that the electricity supply is not stable in most parts of the world because of which we are compelled to use additional devices such as industrial automatic voltage regulator for overcoming the short falls in electricity supply. In case of voltage coming higher than the required voltage or voltage coming lower than the desired voltage, we need to use industrial automatic voltage regulator to manage and maintain a stable supply to our equipments so that they work efficiently. Considering the above facts, industrial automatic voltage regulator are designed and manufactured by us for the healthy operation of sophisticated equipments for every industry and various applications. The industrial automatic voltage regulator which are also know as Servo type Automatic Voltage Stabilizers are based on the principle of feedback information and consists of variable transformer and buck boost transformer.
https://www.purevoltindia.com/automatic-voltage-regulator-manufacturer.html 
These regulators are high speed electromechanical regulators and are manufactured using the latest technology so as to provide constant voltage for supplying the desired voltage. industrial automatic voltage regulator are the best product available in the country. The industrial automatic voltage regulator is made both in 1 phase or 3 phase arrangements.

We are one of the trusted traders, suppliers, manufacturers and exporters of Isolation Transformer to our widely spread clients. It includes Isolation Transformer, Ultra Isolation Transformer, Single Phase Isolating Transformer, Step Down Insulation Transformer and Step Up Isolation Transformer. All these are fabricated at our unit under the strict supervision of our experts, making use of high quality raw material and machinery. Isolation Transformer has gained us huge appreciation from our clients leading to highly increasing demands in the market.

 

An isolation transformer is a transformer used to transfer electrical power from a source of alternating current (AC) power to some equipment or device while isolating the powered device from the power source, usually for safety reasons. Isolation transformers provide galvanic isolation and are used to protect against electric shock, to suppress electrical noise in sensitive devices, or to transfer power between two circuits which must not be connected. A transformer sold for isolation is often built with special insulation between primary and secondary, and is specified to withstand a high voltage between windings.

 

Isolation transformers block transmission of the DC component in signals from one circuit to the other, but allow AC components in signals to pass. Transformers that have a ratio of 1 to 1 between the primary and secondary windings are often used to protect secondary circuits and individuals from electrical shocks. Suitably designed isolation transformers block interference caused by ground loops. Isolation transformers with electrostatic shields are used for power supplies for sensitive equipment such as computers, medical devices, or laboratory instruments.

 

Features / Advantages of Isolation Transformer :

• Filters Power Line Noise, Spikes and Transients.

• Isolates Sensitive Equipment's from Noisy Power Lines.

• Complete Electrostatic Shielding.

• Minimizing Common Mode Noise by Over 130dB.

• Minimizes Transverse Mode Noise.

• Line and Load Regulation better than +3.5%.

• Quality Components, Conservating Ratings and Rugged Design for Best Long Term Value.

Ratings : 1 KVA to 500 KVA ( 1 / 3 Phase)

Additional Information:

• Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)

We are dealing in the industrial UPS and also providing them to the best quality to suppliers

Feature  List Of 3 Phase Sine Wave Inverter

These inverters broadly cover the following applications.
(i)    Off Line Inverter With Contactor Change Over
(ii)    Lift /Heavy Duty Motor Inverters
(iii)    On Line Inverter With External Charger

FEATURES:
1.    Single phase & three phase
2.    No load shut down and load restart
3.    Single phase prevention
4.    Phase imbalance protection
5.    Phase sequence error protection
6.    Over load protection & restart
7.    Short circuit protection & restart
8.    Variable freq. drive  (Lift/Pumps etc)
9.    Output voltage : 220V ±1%
10.     Load Regulation better than 5%
11.    Lo & stage CCCV: Better than 5%
12.     4 Stage Mains charger : 2A to 20 Amp
13.    Solar Charger  10Amp to 40 Amp
14.    Low voltage cut at : 160 VAC
15.    High voltage cut at : 260 VAC
16.    Battery low cut  & restart
17.    Galvanic Isolation (Transformer models)
18.    4 Line LCD display
19.    Buzzer alarms
20.    Transformerless  Inverters 
21.    Efficiency better than 85%
22.    THD less than 3%

Rating Available : 2 KVA to 15 KVA

Other Information
•Pay Mode Terms: L/C (Letter of Credit), T/T (Bank Transfer)

Purevolt is a leading supplier and exporter of PWM IGBT Static Voltage Stabilizers or regulators. These static stabilizer and regulators are majorly made keeping in view of changing requirements of the industrial machinery and its applications. Some machinery requires very accurate and fast response time which is not possible to achieve from traditional stabilizers or regulators, that whether the static stabilizer comes to the rescue of the industry. The static stabilizer employs IGBT based switching technology with microcontroller based control systems which ensures stable output voltage even in case of large input variations.

• What are limitations of available voltage regulators? 

• Since Long, conventional methods like Servo voltage stabilizer and Tap Changer AVR are used In industrial, commercial and residential application. But, these technology has following limitations,

• • Very slow correction speed

  • Slow Correction time

  • Interrupts power path at the time of regulation (tap changing method)

  • Mechanical component limitation or failure

  • Manual Bypass

  • Low reliability

  • Low regulation

• What are the advantages of Static Voltage Regulator?

  • Compact in the size compare to conventional regulator

  • Very fast correction speed of 20Khz

  • Very fast correction time of 20-30ms as compare to conventional regulator (200 – 5000ms)

  • Excellent voltage regulation of +/- 1%

  • Auto bypass

  • No moving parts so no wear and tear and high reliability No maintenance

  • Silent operation

  • Excellent load protection capabilities to ensure load life

 

Rating Available for Static Voltage Stabilizers & Regulators :

1 KVA to 20 KVA - 1 Phase

3 KVA to 60 KVA - 3 Phase

Additional Information:

• Item Code: static

We are  manufacturing transformers for various equipments like computer monitors, T.V. signal booster and graduated in to making transformers for Cellular Industries, UPS, Invertors and Custom Design CVT's, Ultra Isolation Transformers.

We have created over the years enough capacity to serve diversified customers, even meeting their distress and heavy volume requirement. We can deal in heavy quantum orders as all the plant & machinery is available in the factory.
Our Products
We make transformers for all industries like :
Cellular operators, U.P.S., Invertors, Voltage Stabilizers, Control systems, Medical equipments, Toroidal Transformers, Power supplies,  Audio amplifiers.
We also do custom design for C.V.T's and Ultra Ultra Isolation Transformers.

Our products meet or exceed stringent Quality Control norms required by our customers.
We believe in 100 % reliability and trust for:
· Committment
· Quality
· Quantity
· Professional dealing


E I Type Transformers

We have both capabilities and facilities to manufacture and export EI Power Transformers of all sizes and designs. We manufacture these EI Transformers in both Single / Three Phase. Our range of EI Transformers goes up to to a power rating of 1000 KVA ( 3 Phase). We use top quality raw materials to manufacture these electronic EI Transformers which ensure life and faultless operations.. Our EI Transformers are 100% tested to reduce the rejection rate. The company is known for high performing and affordable single phase EI Transformers in the market. Our EI Transformer finds application in various electrical and electronic equipments which are listed below:
Cellular operators, U.P.S , Invertors, Voltage Stabilizers, Control systems, Medical equipments, Toroidal Transformers, Power supplies,  Audio amplifiers.
We also do custom design for C.V.T's and Ultra Ultra Isolation Transforme

Working Principle of PWM IGBT Static Voltage Regulator

We Supplies IGBT AC to AC PWM technology based Static Voltage Stabilizer and regulators, which provides constant output voltage to the load connected. They are the newly innovated static stabilizers and regulators which have no moving part and ensures high performance and stability to the load connected.

Delta Voltage is added and subtracted at the primary of buck-boost transformer by IGBT based AC – AC converter to regulate output voltage.

Technical Specifications:

Power Capacity : 2 KVA – 20 KVA (1 Phase), 4.5 KVA - 60 KVA (3 Phase)

Input Voltage Range : 160 – 290 V AC / 280 V – 500 V (1 Phase / 3 Phases)

Output Voltage : available on request

THD In Output : 220 V – 230 V / 380 V – 400 V (1 Phase / 3 Phase)

Line Frequency : Same as Input

Correction Speed : better than 10 ms

Crest Factor : 3 : 1

Efficiency : 97 % at rated load

Protections : Under / Over Voltage, Overload, Short Circuit

Cooling Arrangement : Air Cooled

Operating Temperature range : 0 – 45^O C

Metering and Display : LCD Alphanumeric Display.

Rating Available for Static Voltage Stabilizers & Regulators :

1 KVA to 20 KVA - 1 Phase

3 KVA to 60 KVA - 3 Phase

We Are Supplier & Exporter Of DSP based sine wave inverter / Home Ups. Our DSP based sine wave inverter / Home Ups employ cutting edge Digital signal processing technology (DSPT) and IGBTs to provide most efficient power conversion besides attractive user friendly features.

Product details:

• Efficiency > 80 %

• Wide Charging Range

• Inverter and UPS operation

• Protected for short circuit, over voltage, over current

• Charging current adjustable

FEATURES:

• D.S.P. based; less components, small size, more efficiency.
• Peak load handling capacity is three times of rated capacity; can smoothly start heavy motors.
• Soft start features; protects appliances at startup.
• Supply pure sine wave power; with low THD. Protects sensitive office equipment.
• Low maintenance cost.
• Software controlled Auto self testing.
• Over load and D.C. low protection.
• Computer Compatible UPS operation.
• Intelligent Auto sense; continuously monitors health of system.
• AC Input low and high voltage cut off protections in both, inverter and U.P.S. modes. INV (90-290)V,UPS (180-260)V
• Constant voltage/Constant current pulse charging with wide Input range (140-280)V. (Charging current 1-15 Amp)
• Silent operation of fans, tube light or appliances.
• Software controlled Auto reset feature for over load, short ckt and low battery
• Fully protected against short circuit of AC mains with output.
• Phase to phase short circuit protection.
• Low no load current for prolonged battery operation under standby.
• Crystal controlled operation.
• Built in cooling fan.
• Fold back current limiting protection for short ckt surge load & over load.
• Thermal shutdown. (In case of FAN failure).
• Can Charge Deep Discharged Battery(6.2V)

 

 

Applications:

• Off Line Inverter With Contactor Change Over
• Lift /Heavy Duty Motor Inverters
• On Line Inverter With External Charger

 

FEATURES:

• Single phase & three phase
• No load shut down and load restart
• Single phase prevention
• Phase imbalance protection
• Phase sequence error protection
• Over load protection & restart
• Short circuit protection & restart
• Variable freq. drive (Lift/Pumps etc)
• Output voltage : 220V ±1%
• Load Regulation better than 5%
• Lo & stage CCCV: Better than 5%

 

Additional Information:

• Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)