A reminder of the precautions to be taken when carrying out external inspections of transformers

Release time:

2021-11-12


  Transformers will be in the factory and in the process of use for regular testing, which transformer inspection appearance is the basic test. When carrying out the test is first to observe the appearance of the transformer, then in the test when the appearance of the inspection of the main attention to what issues?

  For acceptance inspection, the appearance check should check the following 5 items:

  1 check the configuration of the device, the device model, rated parameters (DC power supply rated voltage, AC rated current, voltage, etc.) is consistent with the design.

  2 Sample check the quality of the main equipment, auxiliary equipment, and the quality of the materials used for the conductors and terminals.

  3 Check that the signs on the screen cabinet are correct, complete and clear, and consistent with the drawings and operating procedures.

  4 Check that the devices and measures to mitigate electromagnetic interference in the input circuit and power circuit of the device should comply with the relevant standards and technical requirements of the manufacturer.

  5 Remove the connecting piece (pressure plate) on the protection screen cabinet that is not involved in normal operation to prevent the operating personnel from mistakenly throwing the pressure plate.

  For periodic inspection, the following items are mainly checked:

  1 Check whether the inside and outside of the device are clean and free of dust; clear the dust on the circuit board and the terminal block inside the screen cabinet.

  2 Check whether the small switches, dials and buttons of the device are good; whether the display is clear and the text is clear.

  3 Check whether the printed circuit board of each plug-in is damaged or deformed, and whether the connecting wires are well connected.

  4 Check whether the components on each plug-in are well welded and whether the chips are inserted tightly.

  5 Check whether the transformer and relay on each plug-in are fixed well and whether there is any looseness.

  6 Check whether the screws of the cross terminal block of the device are tightened and whether the wiring of the rear board is well connected.

  7In accordance with the method described in the technical instructions of the device, check, set and record the position of the selection jumper and toggle switch within the plug-in of the device according to actual needs.

  Power transformer testing equipment manufacturers remind you of the precautions to be taken when transformers are being inspected for appearance

  The transformer will be in the factory as well as in the use of the process of regular testing, which transformer inspection appearance is the basic test. In the detection of the first is to observe the appearance of the transformer, then in the detection of the appearance of the inspection of the main attention to what issues?

  For acceptance inspection, the appearance check should check the following 5 items:

  1 check the configuration of the device, the device model, rated parameters (DC power supply rated voltage, AC rated current, voltage, etc.) is consistent with the design.

  2 Sample check the quality of the main equipment, auxiliary equipment, and the quality of the materials used for the conductors and terminals.

  3 Check that the signs on the screen cabinet are correct, complete and clear, and consistent with the drawings and operating procedures.

  4 Check that the devices and measures to mitigate electromagnetic interference in the input circuit and power circuit of the device should comply with the relevant standards and technical requirements of the manufacturer.

  5 Remove the connecting piece (pressure plate) on the protection screen cabinet that is not involved in normal operation to prevent the operating personnel from mistakenly throwing the pressure plate.

  For periodic inspection, the following items are mainly checked:

  1 Check whether the inside and outside of the device are clean and free of dust; clear the dust on the circuit board and the terminal block inside the screen cabinet.

  2 Check whether the small switches, dials and buttons of the device are good; whether the display is clear and the text is clear.

  3 Check whether the printed circuit board of each plug-in is damaged or deformed, and whether the connecting wires are well connected.

  4 Check whether the components on each plug-in are well welded and whether the chips are inserted tightly.

  5 Check whether the transformer and relay on each plug-in are fixed well and whether there is any looseness.

  6 Check whether the screws of the cross terminal block of the device are tightened and whether the wiring of the rear board is well connected.

  7Check, set and record the position of the selector jumpers and toggle switches in the device plug-in according to the method described in the device technical instructions and according to actual needs.