DC Winding Resistance Test

Weshine® Transformer Winding Resistance Tester for Transformer WindingDC Resistance Testwith CE certificate, high quality and accuracy, Invented and produced according to national standards, complete electric testing solution available. Contact us for more details of DC Resistance Test from Weshine!

Product Introduction

Transformer Winding Resistance Tester for DC Winding Resistance Test

Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation Winding DC Resistance testing (as can be carried out by the Weshine® Transformer Winding DC Resistance Tester (VS-3110 series) of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.

The Transformer Resistance Tester, also called Transformer Winding Resistance Tester, made for DC Winding Resistance Test, is a line-operated, field-portable instrument specifically designed to safely and accurately measure the resistance of all types of magnetic windings. Transformer Winding Resistance Tester for DC Winding Resistance Test 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.

By a DC Winding Resistance Test of transformer from one HV transformer bushing to another, transformer resistance testing can reveal a great deal of information about the transformer. In addition to the obvious faulted transformer winding (i.e., an open winding or shorted turn), subtler problems can be detected. The DC current, in addition to flowing through the winding, also flows through the off-load ratio adjusting switch (DETC), the on-load ratio adjusting switch (on load tap changer or OLTC), as well as numerous welded and mechanical connections. Hence, the integrity of all these components can be verified with the use of transformer resistance test instruments. Applying DC test current through OLTC switches under transition (tap changes) validates proper make-before-break operation. From experience, it is known that the on load time changer has the greatest risk of misoperation as it operates within a transformer.

Weshine® Transformer Winding Resistance Tester for DC Winding Resistance Test Parameter (Specification)

Typical Application

The purpose of Weshine® Transformer Winding Resistance Tester for DC Winding Resistance Test 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 DC Winding Resistance Test Set as shown as form:

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

Quality Certificates

Weshine® always believe that all the success of our company is directly related to the quality of the products we provide. DC Resistance Test Set meet the highest quality requirements specified in ISO9001, ISO14000:14001 guidelines and our strict quality control system.

Shipment 

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