Transformer iron core multipoint grounding diagnosis and processing method
A transformer core and multi-point grounding technology, which is applied in the field of transformers, can solve the problems of circulating current in the core grounding wire, and achieve the effects of ensuring reliability, improving accuracy, and reducing analysis time
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[0015] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0016] A transformer core multi-point grounding diagnosis and treatment method, such as figure 1 shown, including the following steps:
[0017] Step 1. Measure the grounding current of the transformer iron core. If the grounding current exceeds the standard, check whether the measurement method is correct and conduct a retest.
[0018] When measuring the grounding current of the transformer iron core, the clamp ammeter should be placed close to the iron core grounding down conductor to measure the influence of leakage flux; then the clamp ammeter should be clamped into the iron core grounding down conductor to measure the iron core grounding current; The actual value of the core ground current should exclude the influence value of the leakage flux.
[0019] When measuring, check the structure of the iron core grounding down-conductor, and mea...
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