40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test

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Number of Employees
44
Year of Establishment
2013-09-17
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
  • 40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
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Overview

Basic Info.

Model NO.
VS-3240
Display
Digital
Weight
12 Kg
Product Name
DUAL CHANNEL WINDING RESISTANCE TESTER
Measuring Range
1 mΩ ~ 40000 Ω
Resolution
0.01 μΩ
Accuracy
0.0001 μΩ
Current Output
25 mA to 40 A
Voltage Output
50 V
Operating temperature
-20ºC to 40ºC
Working power supply
AC 220V
Dimensions
445 x 370 x 210 mm
Transport Package
Wooden Box with Foam Inside
Specification
VS-3240:40A Dual Channel Winding Resistance Tester
Trademark
WESHINE
Origin
Hebei, China
HS Code
9030332000
Production Capacity
2000 Pieces

Product Description

 

Product Description

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 resistance testing (as can be carried out by the Weshine Transformer Ohmmeter (VS-3110 series) of transformer test equipment) then it's likely to fail before reaching its maximum operating life.

By measuring a transformer's winding resistance 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.


In addition, VS-3240 can meet the time requirements of transformer temperature rise test(heat run test). Dual channel and phase selection measurement, three temperature rise timing value taking modes, real-time sampling and print output make temperature rise test a simple and convenient thing.

PRODUCT INFORMATION
Product Name
DUAL CHANNEL DC RESISTANCE TESTER
Typical Application
1. For transformer winding resistance test at 1 mΩ to 40000 Ω.
2. For transformer temperature rise test(heat run test).
Test Range
1 mΩ ~ 40000 Ω
Output Current
40 A
Power Supply
AC 220 V
Accuracy
0.2 %
Resolution
0.01 μΩ
Certificates
CE; EMC; LVD; ISO; IEC;
Dimensions
445 x 370 x 210 mm
Model Number
VS-3240
40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
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40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test
40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test

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40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test

Company Profile

40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test40 A Direct Current Dual Channel Transformer DC Winding Resistance Tester for Temperature Rise Heat Run Test

 

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