When dealing with transformer short-circuit accidents in daily operations, it is necessary to find out the essence of the problem through inspection and testing. When the transformer suffers a sudden short circuit, both the high and low voltage sides will be subject to a large short circuit current.
Advantages and disadvantages of dry-type transformers and oil-immersed transformersIn terms of price, dry change is more expensive than oil change.In terms of capacity, large-capacity oils produce more oil than dry ones.Dry transformers need to be used in complex buildings (basements, floors, roofs,
1. Main protection1. Main protection is a protection that meets system stability and equipment safety requirements and can selectively remove protected equipment and line faults as quickly as possible.2. The main protection of the transformer is differential protection and gas protection.1) Differen
1 The impact closing test of the transformer does not necessarily have to be conducted from the high voltage side, which is related to the application of the transformer. Generally, this test is combined with the operation of the transformer. Since most of the transformers we use are step-down trans
Urgent defects:Equipment or facilities directly threaten the safe operation and need to be dealt with immediately, which may cause equipment damage, personal casualties, large-scale power outages, fires and other accidents at any time; the treatment should not exceed 24 hours.Major flaws:Those that
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