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09 07,2024
What are the routine electrical tests for transformers?
What are the routine electrical tests for transformers? a. Voltage Ratio Test: Used to verify the voltage ratio and detect faults such as winding inter-turn or inter-layer short circuits, and check if switch leads are connected incorrectly. b. Win...
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08 07,2024
What is a steelmaking arc furnace transformer?
What is a steelmaking arc furnace transformer? A steelmaking arc furnace transformer is a special type of electric furnace transformer with various categories, including three-phase steelmaking arc furnace, three-phase ore-heating furnace, single-phas...
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03 07,2024
What is the voltage phase relationship of transformer windings?
What is the voltage phase relationship of transformer windings? The voltage phase relationship of transformer windings refers to understanding the relationship of voltage phases between high, medium, and low voltage windings. This is typically the fir...
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02 07,2024
Yyy connection：What are the characteristics ?
Yyy connection：What are the characteristics ? The Yyy connection exhibits third harmonic voltage, but in three-phase three-legged core transformers, the third harmonic voltage does not exceed 5% of the fundamental. Therefore, it is suitable only for t...
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01 07,2024
Yyd and Ydd Connection : What are the characteristics?
Yyd and Ydd Connection : What are the characteristics? The Yyd connection is suitable for transformers with various core configurations, and its features include: a. The adoption of d-shaped winding on the low-voltage side allows for the elim...
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29 06,2024
How does humidity affect the operation of transformers?
How does humidity affect the operation of transformers? Relative humidity is expressed as a percentage at a certain temperature. At high temperatures, if the relative humidity is high, it is prone to the proliferation of mold. These molds may have adv...
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28 06,2024
Yd and Dy Winding Configurations: What are the characteristics?
Yd and Dy Winding Configurations: What are the characteristics? The Yd winding configuration is suitable for transformers with various core forms and features: a. The third harmonic current can circulate through the secondary side, eliminating the thi...
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27 06,2024
What is the winding configuration of a transformer?
What is the winding configuration of a transformer? The combination of the connection methods for the high, medium, and low voltage windings of a transformer is referred to as the winding configuration. The winding configuration is crucial for the per...
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26 06,2024
How is the lightning arrester protection implemented at the output terminals of the autotransformer?
How is the lightning arrester protection implemented at the output terminals of the autotransformer? When installing lightning arresters, it is necessary to install them at the high-voltage and medium-voltage output terminals of the autotransform...
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25 06,2024
Yy Connection Combination: What are its characteristics?
Yy Connection Combination: What are its characteristics? The Yy connection combination, in addition to possessing the characteristics of the Y-shaped winding, exhibits distinct features based on the different structures of the core. For core-type ...
