High voltage test transformer has been widely used in power maintenance
High voltage test transformer is a product specially used to detect the insulation strength of electrical equipment. It can effectively detect the leakage current inside power devices. It is a very practical product that can provide a DC high voltage source. It has been effectively promoted and used in various power applications. Currently, it has achieved a very high application rate in power maintenance, and it is also well used in mining, metallurgy, steel and other industries, and is loved by everyone.
High voltage test transformer is a new type of high voltage test equipment, adopting a single-frame core structure. The primary winding and high voltage winding are coaxially wound on the core, thereby reducing leakage flux and increasing coupling between windings. The overall structure of the product is compact, with strong versatility, 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. It is an essential test instrument for power equipment testing and preventive tests. In addition to being used for AC power frequency withstand voltage tests, if equipped with capacitors, silicon stacks and high voltage DC microammeters of the same voltage level and capacity, it can be assembled into a DC high voltage test device to measure high voltage DC leakage current.
Because of its very small size and light weight, it is very suitable for rapid transportation and movement, or installation and disassembly. It can be used in a variety of different occasions, which is very convenient. Moreover, its appearance is also very beautiful and scientific. It has a dedicated panel for operation, with simple and comprehensive functions, very complete, and very convenient to operate. It is a mature product. The high voltage test transformer has been well recognized and improved in terms of practicality, especially when used in the field. This high voltage generator is an ideal choice.
Operation steps:
1. Connect the leads according to the wiring schematic diagram, and reliably ground the power frequency high voltage test transformer and the 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 is on, press the start button, the red indicator light is on, indicating that the transformer is energized, waiting for voltage boosting;
4. Rotate the voltage regulator handle clockwise at a constant speed to boost the voltage, and closely monitor the instrument indication and the condition of the test object;
5. After the test, quickly reduce the voltage to zero, press the stop button, then cut off the power supply, and disconnect the test leads.
Precautions:
1. When conducting high voltage tests, at least 2 or more personnel must participate, and clearly divide the work and clarify the methods between each other. There should be a dedicated person to monitor the site safety and observe the test status of the test object;
2. The transformer and control box should have reliable grounding;
3. During the test, the boosting speed should not be too fast, and sudden full voltage power-on or power-off is absolutely not allowed;
4. During the test, if the test object is short-circuited or breaks down, the overcurrent relay in the control box will operate. At this time, return the voltage regulator to zero, and cut off the power supply of the power frequency high voltage test transformer before removing the test object.
