Dry Type Transformer Testing Procedure

How to shift gears of the dry type transformer:

Operation steps:

1. Wear insulating boots and gloves.

2. Close the air circuit breaker of low-voltage power distribution cabinets step by step.

3. Disconnect the total air circuit breaker of 1# low-voltage cabinet.

4. Open the generator to ensure the power supply for key equipment.

5. Disconnect the high-voltage vacuum circuit breaker of the 3# high-voltage cabinet.

6. Use the handle to drag the vacuum circuit breaker to the disconnected position.

7. Disconnect the total high-voltage vacuum circuit breaker of the 1# high-voltage incoming cabinet.

8. Open the high-voltage ground switch of the 3# high-voltage cabinet.

9. Check whether the high-voltage testing machine is normal.

10. Make sure the high-voltage sides of the transformer are free of voltage.

11. Use open end wrench 17-19 to change the split position from (3---4) to (1---2), and tighten bolts.

12. Clean the dust in the transformer.

Restore power supply:

1. Disconnect the ground switch of 3# high-voltage cabinet.

2. Open the vacuum switch of 3# high-voltage cabinet.

3. Close the vacuum circuit breaker of 1# high-voltage incoming cabinet.

4. Close the vacuum circuit breaker of 3# high-voltage cabinet.

5. Make sure the voltage of low-voltage sides is 400 V

6. Close the main switch of low-voltage cabinet.

7. Close the switches of compressors, office buildings and other equipment to restore power supply.

  • Performance Characteristics of Oil Immersed Power Transformer a. The low voltage winding of oil immersed type transformer adopts copper conductor when it is of small captivity and it generally adopts the cylinder structure of copper foil winding shaft. High volt...
  • Basic Concept of Mining Transformer In order to adapt to the use under the mine, the firm structure and short shape of the transformer is required. The transformer is not equipped with an oil conservator. There is a proper space above t...
  • Characteristics of the Encapsulated Dry Type Transformer The encapsulated dry type transformer is widely used in local lighting, high-rise buildings, airports, CNC machinery equipment of wharf and other places. Simply speaking, an encapsulated dry type tran...