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11 03,2024
What are the reasons for the occurrence of partial discharge in transformers?
What are the reasons for the occurrence of partial discharge in transformers?Generally speaking, there are two main reasons for the generation of partial discharge. Firstly, it may result from an unreasonable structural design, leading to uneven distribut...
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10 03,2024
What are the methods for isolating metal fines?
What are the methods for isolating metal fines?a. Install embedded plastic throat rings. Add a throat ring at the pump casing of the impeller, which can be made of polytetrafluoroethylene (PTFE) or produced using epoxy glass fiber rods. This alteration ch...
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08 03,2024
How is the impulse voltage test conducted for transformers?
How is the impulse voltage test conducted for transformers?The impulse voltage test comprises lightning impulse tests (including full-wave and chopped-wave tests) and operating wave impulse tests. In the latest IEC76-3 standard, for transformers with a ra...
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07 03,2024
How is the Induced Voltage Withstand Test for Transformers conducted?
How is the Induced Voltage Withstand Test for Transformers conducted?The Induced Voltage Withstand Test for fully insulated transformers is conducted by opening the high-voltage winding and applying twice the rated voltage at a frequency of 100-250Hz to t...
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05 03,2024
How should an overloaded transformer in operation be handled?
How should an overloaded transformer in operation be handled?When an operating transformer experiences overload, it may manifest as the current exceeding the steady-state value, signaling, and alarm bells sounding, among other indicators. Operators should...
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02 03,2024
What are theHazards ofA SuddenShortCircuit toA Transformer?
What are theHazards ofA SuddenShortCircuit toA Transformer?When a sudden short circuit occurs at the secondary terminals of a transformer while rated voltage is applied to the primary side, the maximum value of the short-circuit current can reac...
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01 03,2024
How does a transformer change voltage?
How doesA TransformerChangeVoltage?When an electric current flows through the primary coil of a transformer, it induces an alternating electromagnetic field. This electromagnetic field induces a current in the secondary coil, resulting in the formati...
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29 02,2024
What Are the Types of Transformers?
What Are the Types of Transformers?There are many types of transformers, which can be classified based on voltage regulation, number of phases, applications, structure, cooling methods, and more. 1. Voltage Regulation: Step-Up Transformers: I...
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27 02,2024
What is the Role of Immersion Insulation Varnish in Transformers?
What is the Role of Immersion Insulation Varnish in Transformers?Immersion insulation varnish plays a crucial role in enhancing the performance of transformers, with specific functions as follows: 1. Enhancing Electrical Insulation Performance: I...
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26 02,2024
What is the Impact of Impedance on Transformers?
What is the Impact of Impedance on Transformers?Impedance is a crucial parameter in the design and operation of transformers, affecting various aspects of their performance. 1. Efficiency: Transformer efficiency refers to the ratio of input power...
