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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

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)

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

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

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

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)

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