The comprehensive test system for transformers is mainly applicable to the following types of transformers:
1. Current Transformer (CT)
Current transformer is an important equipment used to measure current in power systems. The comprehensive testing system for transformers can perform multiple tests on current transformers, including but not limited to:
① Voltage current characteristic test: Test the current response characteristics of current transformers at different voltages.
② Polarity test: Verify whether the polarity of the current transformer is correct.
③ Variable ratio polarity test: Test whether the variable ratio and polarity of the current transformer meet the requirements.
④ Error curve testing: Measure the error of the current transformer at different currents and draw the error curve.
⑤ Secondary side circuit load test: Test the load capacity of the secondary side circuit of the current transformer.
2. Voltage Transformer (PT)
Voltage transformer is a device used in power systems to measure voltage. The comprehensive testing system for transformers can also perform multiple tests on voltage transformers, such as:
① Voltage current characteristic test: Test the current response characteristics of voltage transformers at different voltages.
② Polarity test: Verify whether the polarity of the voltage transformer is correct.
③ Variable ratio polarity test: Test whether the variable ratio and polarity of the voltage transformer meet the requirements.
④ Error curve testing: Measure the error of the voltage transformer at different voltages and draw the error curve.
⑤ Measurement of ratio and angle difference: Test the ratio error and phase error of voltage transformers.
3. Other types of transformers
In addition to current transformers and voltage transformers, the comprehensive testing system for transformers may also be applicable to other special types of transformers, such as combination transformers, special-purpose transformers, etc. These transformers also play an important role in the power system, and the accuracy and reliability of their performance also need to be guaranteed.
In summary, the comprehensive testing system for transformers has a wide range of applicability and can be applied to various types of transformer testing. In practical applications, appropriate testing items and methods should be selected based on specific requirements and transformer types.
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