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China, Chinese 10A Rechargeable Transformer Windings DC Resistance Test Kit1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Meter for ElectricityResistance MeterTestador De Resistanceencia DCwinding milliohm meter
Weshine Electric Manufacturing Co., Ltd.
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Product Description Product DescriptionTransformer 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. PRODUCT INFORMATIONProduct NameSingle Phase Rechargeable Transformer DC Winding Resistance TesterTest Range200μΩ ~ 100KΩOutput CurrentAuto,10A,5A,1A,200mA,40mA,<5mAPower SupplyAC220VAccuracy0.002Resolution0.0001μΩCertificatesCE; EMC; LVD; ISO; IEC;Dimensions330mm*250mm*150mmOEMAcceptable Recommend ProductsFeedbackCompany Profile
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