Transformer Maintenance Guide

  • Check the cleanliness of the casing and magnetic road, and clean up in time to keep them clean and prevent flashover.
  • When the cooling device is running, make sure that the butterfly valve in the inlet and outlet of the cooler is open and the radiators are open with entrance clean. The steering of the submersible pump and the running condition (no abnormal sound and obvious vibration) should also be checked as well as the operation of fans. Make sure that the automatic power switch of cooler control box is well closed with no vibration and abnormal voices; and the cooler doesn't leak oil.
  • Ensure that electrical connections are tight and reliable.
  • Check the tap-charger regularly and check the fastening, burns, scars, rotation flexibility and connecting positions of the contact.
  • The coil, casing and lightning arrester should be tested every 3 years.
  • The reliability of the lightning arrester is checked every year. The grounding of the arrester must be reliable, with the lead as short as possible. The ground resistance should be detected in dry seasons, which can not exceed 5 Omega.
  • Replace the desiccant of respirators and oil used in the oil bath.
  • Test fire facilities regularly and record the their maintenance and performances in detail.

  • 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...