10A Rechargeable Transformer Windings DC Resistance Meter

• After-sales Service: 24/7. All Time Zones Friendly
• Warranty: 1 YEAR
• Display Type: Digital Only
• Certification: CE
• Customized: Customized
• Product Name: Transformer Ohmmeter
• Model NO.: VS-3110A
• Measuring Range: 200 μΩ to 50 KΩ
• Current Output: 1 mA to 10 A
• Resolution: 0.0001 μΩ
• Accuracy: ±0.2%
• Operating Temperature: -10ºC ~ 50ºC
• Dimensions: 330 mm * 250 mm * 150 mm
• Transport Package: Wooden Box with Foam Inside
• Specification: 1 mA to 10 A+ 200 μ Ω to 50 kΩ
• Trademark: Weshine Electric
• 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 () 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.
 

PRODUCT INFORMATION
Product Name	Single Phase Rechargeable Transformer DC Winding Resistance Tester
Test Range	200μΩ ~ 100KΩ	Output Current	Auto,10A,5A,1A,200mA,40mA,<5mA
Power Supply	AC220V	Accuracy	0.002
Resolution	0.0001μΩ	Certificates	CE; EMC; LVD; ISO; IEC;
Dimensions	330mm*250mm*150mm	OEM	Acceptable

 

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