How to conduct transformer fault diagnosis? Transformer in the daily operation process, due to long-term outdoor open-air environment or long-term overload work, will seriously affect the life of the transformer, resulting in transformer failure, so this article briefly introduces the transformer fault diagnosis of several basic methods.
First, the transformer partial discharge fault, partial discharge fault test instrument related knowledge. Its gas production features the most hydrogen components (more than 85% of total hydrogen hydrocarbons), followed by knowledge of methane test equipment. The consequence of partial discharge is insulation aging. If it is allowed to develop, it will cause damage to the insulation and even result in accident test equipment related knowledge.
Second, the transformer low-energy discharge fault, usually spark discharge, and its fault gas is mainly related to ethylene and hydrogen test equipment. Due to its low failure energy, total hydrocarbons generally do not have high knowledge of test equipment.
Third, the transformer high-energy discharge failure, gas production of a variety of faults, gas production is fierce, the use of methods to determine the dissolved gas in oil is not easy to pre-diagnose it, often in the event of failure (such as: transformer light gas signaling), we Based on the analysis of the gas and gas components in the oil, the diagnostic test equipment can be used to understand the nature and severity of transformer faults.
Fourth, the transformer overheating fault, overheating fault gas is mainly methane and ethylene, and ethylene is the dominant component testing equipment related knowledge. If a solid insulating material is involved, there will be more knowledge about CO and CO2 test equipment. If there is no CO, CO2, it may be related to the knowledge of local metal overheating fault testing equipment.
Transformer in the actual work, there will always be a variety of fault performance, so in the daily work of electric power workers, we should continue to sum up experience, improve business capabilities, when the transformer failure occurs, the first time to find the row The cause of the failure and the corresponding solution to ensure the normal operation of the transformer.
Hydraulic Cylinder Tube
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Honed tube for hydraulic cylinder
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Standard
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DIN2391, EN10305, JIS G3445, ASTM A519, GB/T 8713...
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Material
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ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45...
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Heat treatment
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BK+S
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Specification
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Outer diameter(mm)
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Inner diameter(mm)
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50-300mm
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40-250
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I.D Tolerance
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H8-H9
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Length
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3-9m (Customers usually choose the 4~5.8m)
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Straightness
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1/1000
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ID roughness
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RA 0.4micron(max)
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Technology
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Honed & SRB(SKIVED AND ROLLER BURNISHED )
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Scope
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Honed tube for hydraulic cylinder, swivel crane, injection machine and
construction machine application
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Advantage of Product
1)Professional & skilled, reliable.
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