Transformer Calibration

Electromagnetic Voltage Transformer Ratio and Polarity Tester, Electromagnetic Transformer Ratio Tester, Electromagnetic Transformer Polarity Tester

DGCT-SThe Electromagnetic Voltage Transformer Ratio and Polarity Tester, also known as the Electromagnetic Transformer Ratio Tester and Electromagnetic Transformer Polarity Tester, is a specialized transformer ratio and polarity testing instrument used for on-site ratio check tests during transformer installation and after winding replacement. The Electromagnetic Voltage Transformer Ratio and Polarity Tester supports the following standards:GB/T20840.5-2013、JB/T5356-199。

According toJJG313-94"Current Transformer for Measurement"JJG313-93The "Voltage Transformer for Measurement" requires on-site ratio check and test to be conducted during transformer handover and after the replacement of the winding.

       The conventional method for checking the ratio of regular transformers is the current method, which, in principle, is an easily understandable and feasible check. However, as the system capacity increases, the primary current of the current transformer becomes increasingly large, sometimes reaching tens of thousands of amperes.;It's already challenging to increase the current to several hundred amperes on-site; achieving thousands or tens of thousands of amperes is nearly impossible. Furthermore, due to their large size and weight, which can be several hundred kilograms or even several tons, on-site use becomes even more difficult. If a small current method is employed, the influence of the current transformer's magnetic sensitivity, linearity, impedance, and leakage reactance will cause a significant increase in error, thereby losing the significance of ratio verification.

       The electromagnetic voltage transformer ratio polarity tester is compact, lightweight, with a wide measurement range, and easy to carry, making it increasingly an essential tool for transformer testing work, especially suitable for on-site current transformer ratio testing instruments.DGCT-S Electromagnetic voltage transformer ratio and polarity tester is a summary of domestic and international transformer characteristics by our company.,Developed with the latest research theories and findings, tailored to meet on-site application requirements.

Instrument Alias

Transformer Ratio and Polarity Tester, Electromagnetic Voltage Transformer Ratio and Polarity Tester, Transformer Ratio Tester, Transformer Polarity Tester, Current Transformer Ratio Tester, Current Transformer Polarity Tester, Current Transformer Accuracy Tester, Portable Electromagnetic Voltage Transformer Ratio and Polarity Tester, Handheld Transformer Polarity Tester, Comprehensive Transformer Parameter Tester, Transformer Actual Ratio Tester, Transformer Partial Discharge Tester, Current Transformer Error Tester, Transformer Open Circuit Voltage Tester, Automatic Ratio Tester, Transformer Ratio and Polarity Comprehensive Tester

Instrument Function

1The portable electromagnetic voltage transformer ratio and polarity tester, utilizing voltage measurement methods, is compact and lightweight, meeting the requirements for ease of use in field operations.

2The voltage waveform is generated by a single-chip microcontroller program, clean and pure, eliminating grid interference.

3The electromagnetic voltage transformer ratio and polarity tester features an internal constant voltage source for stable readings.

4Applicable to all current transformers ranging from tens of amperes to tens of thousands of amperes, and all electromagnetic voltage transformers.

5The electromagnetic voltage transformer ratio polarity tester can directly display the transformation ratio.

6Electromagnetic voltage transformer ratio polarity tester measures transformer polarity using the electronic method, simple and intuitive.

Technical Specifications

DGCT-S The parameters for the Electromagnetic Voltage Transformer Ratio and Polarity Tester should be referred to the product manual or contract. If you find any inaccuracies in the technical specifications, please feel free to correct them.

Transformer Ratio and Polarity Tester Model DGCT-S

Transformer Ratio and Polarity Tester Electromagnetic Voltage Transformer Ratio and Polarity Tester, Electromagnetic Transformer Ratio Tester, Electromagnetic Transformer Polarity Tester

Work Power Input AC220V/50Hz

Ratio Measurement Range 5A/5A～25000A/5A 5A/1A～5000A/1A

Full Range of Electromagnetic Voltage Transformers  

Measurement Precision 0.2%

Volume 280×220×120mm3

Weight 2kg