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18 06,2024
How is the lightning arrester protection of the transformer carried out?
How is the lightning arrester protection of the transformer carried out? The lightning arrester is the most crucial basic component for protecting power generation equipment and transmission and transformation equipment. It also forms the foundation f...
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17 06,2024
What are the precautions for live oil filtration?
What are the precautions for live oil filtration? a. Throughout the entire process of live oil filtration and degassing, the gas relay circuit of the transformer must be connected to the signal circuit to prevent gas leakage and oil running in the pip...
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15 06,2024
How are the deviation values of transformer parameters and the parameters using peak values specified?
How are the deviation values of transformer parameters and the parameters using peak values specified? The specifications for evaluating the performance parameters of transformers are determined by technical conditions, and each standard value has cor...
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15 06,2024
How are the deviation values of transformer parameters and the parameters using peak values specified?
How are the deviation values of transformer parameters and the parameters using peak values specified? The specifications for evaluating the performance parameters of transformers are determined by technical conditions, and each standard value has cor...
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15 06,2024
How are the deviation values of transformer parameters and the parameters using peak values specified?
How are the deviation values of transformer parameters and the parameters using peak values specified? The specifications for evaluating the performance parameters of transformers are determined by technical conditions, and each standard value has cor...
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14 06,2024
How is the testing of transformer oil conducted?
How is the testing of transformer oil conducted? The dielectric strength test of transformer oil is conducted using a 500mm³ standard oil cup in a 60kV AC frequency oil tester. The brass electrodes of the oil cup have a diameter of 25mm, and the surfa...
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11 06,2024
How is the measurement of insulation resistance and absorption ratio conducted?
How is the measurement of insulation resistance and absorption ratio conducted? Insulation resistance, denoted as R, is typically determined by applying a voltage of 2500V for 60 seconds and measuring the resulting value using a megohmmeter with a max...
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07 06,2024
How is the measurement of winding resistance conducted?
How is the measurement of winding resistance conducted? When measuring winding resistance, both the bridge method and voltage drop method are employed. For resistance values exceeding 100, a single-arm bridge is utilized, while for values below 102, a...
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06 06,2024
What are the common electrical tests for transformers?
What are the common electrical tests for transformers? Conventional electrical tests for transformers are designed to identify internal faults and primarily include the following: a. Voltage Ratio Test: Used to verify the voltage ratio and determi...
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05 06,2024
How to conduct a pump test for oil-immersed transformers?
How to conduct a pump test for oil-immersed transformers? Performing a pump test for oil-immersed transformers is an essential step in the production and maintenance processes. For transformers that have completed the assembly, especially those with a...
