Transformer fault diagnosis system based on harmonic method
A transformer fault diagnosis system technology, applied in the field of transformers, can solve problems such as intractable diseases, difficult and timely response, and disease-free maintenance
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Embodiment 1
[0016] Embodiment one: the transformer fault diagnosis system based on harmonic method, comprises the following steps:
[0017] 1) Randomly select several cases in the fault case database of the transformer, sort and classify the extracted cases, and establish a fault diagnosis rule base. The transformer will generate different high-order harmonics under different working conditions and different degradation degrees. The working state and deterioration of the transformer have a direct correspondence with the high-order harmonics. The harmonic method is used to detect the health status of electrical equipment, and the relative harmonics formed by measuring the current flowing to the motor and converter of the electrical equipment The magnitude of the wave content is used to judge the deterioration degree of the converter and its cause and location. This method enables the user to detect the running equipment online in a non-contact manner, so as to reflect various operating para...
Embodiment 2
[0022] Embodiment two: a transformer fault diagnosis system based on the harmonic method, comprising the following steps:
[0023] 1) Randomly select several cases in the fault case database of the transformer, sort and classify the extracted cases, and establish a fault diagnosis rule base. The transformer will generate different high-order harmonics under different working conditions and different degradation degrees. The working state and deterioration of the transformer have a direct correspondence with the high-order harmonics. The harmonic method is used to detect the health status of electrical equipment, and the relative harmonics formed by measuring the current flowing to the motor and converter of the electrical equipment The magnitude of the wave content is used to judge the deterioration degree of the converter and its cause and location. This method enables the user to detect the running equipment online in a non-contact manner, so as to reflect various operating p...
Embodiment 3
[0028] Embodiment three: a transformer fault diagnosis system based on the harmonic method, comprising the following steps:
[0029] 1) Randomly select several cases in the fault case database of the transformer, sort and classify the extracted cases, and establish a fault diagnosis rule base. The transformer will generate different high-order harmonics under different working conditions and different degradation degrees. The working state and deterioration of the transformer have a direct correspondence with the high-order harmonics. The harmonic method is used to detect the health status of electrical equipment, and the relative harmonics formed by measuring the current flowing to the motor and converter of the electrical equipment The magnitude of the wave content is used to judge the deterioration degree of the converter and its cause and location. This method enables the user to detect the running equipment online in a non-contact manner, so as to reflect various operating...
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