Power Frequency Withstand Voltage Test Of Dry Type Transformer

Power frequency withstand voltage test of dry type transformer

Dry type transformers are widely used in power systems and industrial fields, with advantages such as small size, light weight, and easy maintenance. In the process of using dry type transformers, in order to ensure their safe and reliable operation, it is necessary to conduct power frequency withstand voltage tests.

Power frequency withstand voltage test refers to conducting long-term electrical tests on dry type transformers at rated voltage to test their ability to withstand voltage. This test can effectively detect the insulation performance of dry-type transformers and whether they meet the technical requirements of national standards and regulations. At the same time, this test can also identify hidden dangers and defects in dry-type transformers, prevent accidents, and ensure the stable operation of the power system.

When conducting the power frequency withstand voltage test of dry-type transformers, the following points need to be noted:

1. Before testing, the insulation performance of the transformer should be checked to ensure that its insulation materials do not age, crack, or other phenomena. At the same time, check whether the wiring of the transformer is secure to avoid poor contact.

2. During testing, operations should be carried out in accordance with national standards and technical specifications to ensure the accuracy and reliability of the test. At the same time, safety operating procedures should be followed to prevent accidents from occurring.

During the testing process, attention should be paid to the temperature changes of the transformer to avoid the impact of overheating or undercooling on the test results. At the same time, attention should be paid to detecting the leakage current and insulation resistance of the transformer to ensure the accuracy of the test results.

After the test is completed, the test results should be analyzed and evaluated, and any problems found should be promptly addressed and repaired. At the same time, corresponding maintenance plans should be developed to ensure the long-term stable operation of the transformer.

In short, the power frequency withstand voltage test of dry-type transformers is an important link to ensure the safe operation of the power system. During the testing process, it is necessary to strictly follow safety operating procedures to ensure accurate and reliable testing. At the same time, analyzing and evaluating the test results, timely identifying and handling problems, can ensure the long-term stable operation of the transformer

Function Characteristics:

Flame retardant, non-pollution, it can be installed directly in the load center.
2.Maintenance-free, easy to be installed, low operating costs.
3.The enclosure can be of Good moisture resistance, transformer can be put into operation without pre-drying under 100% humidity in the normal operation.
4.Low loss, light weight and small volume, low noise, good dissipation of heat, it can be 150% rated load operation under forced air cooling conditions.
5.Equipped with a complete temperature protection control system to provide reliable protection for the safe operation of
transformers.
6.High reliability. The results of checking for the products that has been put into operation show that the reliability index has reached the international advanced level.

Structural Characteristics:

Cast-foil Coil: Adopting the entire section of copper foil, together with the F-class turn insulation, low voltage winding is wound by the special low-voltage foil winding machine. The foil coil resolves such understanding problems as large short-circuit stress, uneven ampere turn, poor heat dissipation, existing the winding spiral angle as well as unsteady manual welding quality due to low voltage and large current coil winding products. At the same time, the winding end in our company is treated with resin potting, solidification to make shape, moisture-proof and anti-fouling, the lead copper platoon is automatically welded by argon arc welding.

Temperature Control Device: the transformer adopts BWDK series of signal thermometer. The temperature components, are embedded in the upper half of the low-voltage coil, can automatically detect and dynamically display the work humidity of phase coils and also have the functions of over-temperature alarm and trip.

This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings

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