GYSB Series Cascade Test Transformer
Darui Electric recommends for you:
Cascade Test Transformer Precautions
1. When conducting high-voltage tests, at least 2 or more personnel must participate, with clear division of labor and mutual communication methods. A dedicated person should supervise on-site safety and observe the test status of the sample;
2. The transformer and control box should be reliably grounded;
3. During the test, the voltage increase speed should not be too fast, and sudden full-voltage energization or de-energization is absolutely not allowed;
4. During voltage increase or withstand voltage tests, if any of the following abnormal conditions are found, immediately reduce the voltage, cut off the power, stop the test, and investigate the cause before proceeding;
① The voltmeter pointer swings significantly;
② Detection of burning insulation odor or smoke;
③ Abnormal sounds from the tested sample.
5. During the test, if the sample short-circuits or breaks down, the overcurrent relay in the control box will operate. At this time, return the voltage regulator to zero, cut off the power, and then remove the sample.
6. When conducting capacitance tests or DC high-voltage leakage tests, after the test is completed, reduce the voltage regulator to zero, cut off the power, and then use a discharge rod to discharge the high-voltage terminal of the sample or capacitor to ground, to avoid the risk of electric shock from the potential stored in the capacitor.
GYSB Series Cascade Test Transformer
Cascade Test Transformer Operation Steps
1. Connect the leads according to the wiring schematic diagram, and reliably ground the transformer and control box;
2. Before the test, check whether the wiring at each part is in good contact, and check whether the voltage regulator of the control box is adjusted to the "zero" position;
3. Connect the power supply, the green indicator light turns on, press the start button, the red indicator light turns on, indicating that the transformer is energized and ready for voltage increase;
4. Rotate the voltage regulator handle clockwise at a uniform speed to increase the voltage, and closely monitor the instrument readings and the condition of the sample;
5. After the test is completed, quickly reduce the voltage to zero, press the stop button, then cut off the power and disconnect the test leads.
Cascade Test Transformer is a new type of high-voltage testing equipment. This series of products, the Cascade Test Transformer, adopts a single-frame core-type iron core structure, with the primary winding and high-voltage winding coaxially wound on the iron core, thereby reducing leakage flux and increasing coupling between windings. The overall structure is compact, with strong versatility, and is easy to use and carry. It is suitable for power systems and power users to test the insulation performance of various high-voltage electrical equipment on-site. The Cascade Test Transformer is an essential test instrument for power equipment testing and preventive tests.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
