Winding Resistance Test of Transformer

Weshine, a professional manufacturer in China, provides VS-3110 Transformer Winding Resistance Tester is a professional electrical testing instrument designed for accurate transformer winding resistance testing. Also known as a Transformer DC Resistance Tester or Transformer Ohmmeter, this instrument is developed for measuring the resistance of various magnetic windings and low-resistance electrical connections.

The transformer winding resistance test is an important diagnostic method used to verify the electrical condition of transformer windings, check internal connections, and evaluate the integrity of tap changers. By accurately measuring DC resistance values, engineers can identify potential problems related to winding connections and conductor conditions during transformer manufacturing, installation, commissioning, and maintenance.

Why is Transformer Winding Resistance Testing Important?

Transformer winding resistance testing is one of the most important routine electrical tests used to verify winding integrity, detect loose connections, identify tap changer defects, and evaluate conductor conditions.

By comparing resistance values between phases and historical maintenance records, engineers can identify abnormalities before they develop into transformer failures.

Typical issues detected include:

Loose winding connections

Damaged tap changers

Poor brazed joints

Shorted winding turns

Aging conductors

High contact resistance

Key Features

1. Accurate Transformer Winding Resistance Measurement

The VS-3110 is specially designed for precise DC resistance measurement of transformer windings. With a test range of 200 μΩ to 50 kΩ and measurement accuracy of ±0.2%, it provides reliable resistance data for transformer inspection and maintenance.

2. 10 A Test Current Output

The instrument provides a maximum output current of 10 A, enabling stable resistance measurement for transformer winding applications.

The appropriate test current helps obtain accurate resistance values and supports efficient testing procedures for different types of electrical windings.

3. Dual Potential Input Measurement

The double potential input function allows the tester to measure:

Two primary windings

Two secondary windings

One primary winding and one secondary winding

This design improves testing efficiency by enabling simultaneous measurement functions.

4. Dual Reading and Dual Injection Function

The dual reading and dual injection function provides a practical testing method for engineers who need to complete winding resistance measurements efficiently.

It helps improve field testing productivity while maintaining measurement accuracy.

10 A Transformer Resistance Tester for Winding Resistance Test of Transformer

The 10 A Transformer Resistance Tester, also called Transformer DC Resistance Tester or Transformer Ohmmeter, made for winding resistance testing of transformer, is a line-operated, field-portable instrument specifically designed to safely and accurately measure the resistance of all types of magnetic windings. It tests transformers, rotating motor windings, shunt reactors, and low resistance measurements of connections, contacts, and control circuits.

The double potential input can measure the resistance of two primary windings, two secondary windings or one primary and one secondary winding at the same time. This dual reading and dual injection function is an effective way to complete the test in time.

Weshine® Winding Resistance Test of Transformer Parameter (Specification)

Typical Application

The purpose of Weshine®  Winding Resistance Test of Transformer is:

-Check the integrity of transformer winding

-Check the integrity of the tap changer (if any)

-Check internal connections

-Calculate the conductor loss caused by DC resistance (p=I²R）

The specification of each transformer will be determined through type test, routine test, special test and other tests.

Selections

Weshine has 8 years experience specifically for deal with complete range of Electrical Equipment. At present, Weshine has invented various Transformer Resistance Tester as shown as form:

Based on Supply Chain issues: Please contact your preferred Authorized Weshine Distributor for current pricing and lead times.

Quality Certificates

We always believe that all the success of our company is directly related to the quality of the products we provide. Winding resistance test of transformer meet the highest quality requirements specified in ISO9001, ISO14000:14001 guidelines and our strict quality control system.

Shipment 

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