Open Transformer Variac

Name: Open Transformer Variac
Brand: SERVO TECHNOLOGIES SYSTEM
Price: 5500 INR
Availability: InStock

Price 5500 INR/ Piece

Get a Price/Quote

MOQ : 1 Piece

Open Transformer Variac Specification

Low Voltage
0V (Minimum Output)

Operating Temperature
-10C to 45C

Rated Voltage
230V AC

Voltage Booster Type
Continuous variable transformer

Capacity
2A to 30A (as per model requirements)

High Voltage
260V (Maximum Output)

Cooling Type
Open air cooled

Load Loss
Minimal, typically <1%

Coil Material
Enamelled copper wire

Dimension (L*W*H)
Depends on model, typically 200 x 180 x 180 mm

Standard
IS 5142 / IEC 61558

Product Type
Open Transformer Variac

Material
Copper winding, laminated silicon steel core, phenolic/metal frame

Output
Variable AC Voltage

Frequency (MHz)
50-60 Hz

Efficiency
Over 95%

Phase
Single Phase

Usage
Voltage regulation in laboratories, testing and industrial equipment

Coil Structure
Toroidal

Coil Number
Single Coil

Power Scope
Adjustable output, typically 0-260V

Weight
Approx. 3-10 kg (varies by model)

Open Transformer Variac Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
10 Pieces Per Day

Delivery Time
2 Days

About Open Transformer Variac

The offered Open Transformer Variac by Servo Technologies System is a simple and rugged method to control power, voltage and current. It is designed for heavy duty continuous use and can provide a high current rating and overload capacity. We are specialized in the designing tailor made Variac. The surface on these coils is machine processed and hence is very even and smooth, this ensures less torque for the motor, thereby enhancing its life.

Features

Coils made from high grade CRGO steel
High quality carbon brush
Spare carbon brushes
Short time overload capacity
Low temperature rise
Simple rugged construction
99.9% pure copper
High efficiency
Negligible wave form and power factor distortion
Wide range of current rating from 4 Amp to 1200 Amp

Precision Voltage Control for Testing Environments

Designed for electrical laboratories and demanding testing setups, this open-type variac enables seamless voltage regulation using a smooth manual rotary knob. The open frame base mounting allows easy integration onto panels, making it ideal for voltage testing, equipment burn-in cycles, and quality control tasks. Its high efficiency ensures minimal energy loss, supporting rigorous long-duration operations.

Robust Construction and Superior Safety Standards

Engineered with enamelled copper windings and a laminated silicon steel core, the transformer guarantees durability and consistent performance. It meets IS 5142 and IEC 61558 standards, ensuring reliability for professional applications. While it does not include internal overload protection, the unit supports straightforward compatibility with external protection devices for enhanced operational safety.

FAQs of Open Transformer Variac:

Q: How is the open transformer variac mounted for use in laboratory settings?

A: The variac is designed for open frame base mounting, making it suitable for easy installation on laboratory panels or equipment racks. This open mounting style facilitates maintenance and integration into custom setups.

Q: What is the primary process for adjusting output voltage with this variac?

A: Voltage regulation is achieved manually using a rotary knob, which allows users to continuously vary the output voltage from 0V up to 260V, depending on the specific model.

Q: When should external overload protection be implemented?

A: Since this variac does not include built-in overload protection, it is essential to install suitable external overload devices prior to use, especially during intensive testing or when connected to sensitive equipment.

Q: Where is this transformer commonly used?

A: This open transformer variac is primarily found in electrical labs, voltage testing stations, and industrial environments requiring precise control of AC voltage supply for testing, calibration, or burn-in procedures.

Q: What benefits does the toroidal coil structure provide?

A: The toroidal coil design ensures high efficiency (over 95%), compact size, and minimal electromagnetic interference, resulting in stable voltage regulation and reduced load losses during operation.

Q: How does this transformer meet international safety and performance standards?

A: The variac complies with IS 5142 and IEC 61558 standards, demonstrating adherence to international norms for insulation, operational safety, and reliable performance in laboratory and industrial scenarios.

Tell us about your requirement