ensaio do óleo do transformador
Transformer oil testers (Which is in the Teste do óleo do transformador Kit) are essential tools in electrical engineering, used to assess the condition and performance of insulating oil within transformers. Regular testing of transformer oil is crucial for maintaining transformer health, preventing failures, and ensuring efficient operation.
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Testador de perda dieléctrica de alta qualidade Tan Delta Meter Teste automático de dissipação de capacitância de transformador
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Testador automático de solidificação e ponto de fluidez de óleo de isolamento de transformador
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Colorímetro de óleo para óleos lubrificantes e produtos petrolíferos ASTM D1500
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Equipamento de teste de densidade de óleo de petróleo ASTM D1298
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Equipamento de laboratório Testador de viscosidade cinemática de óleo isolado
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Analisador de cromatografia de gás dissolvido em óleo de transformador
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Teste de perda dieléctrica de transformador automático Testador de dissipação de capacitância Tan Delta
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Equipamento de teste automático da gama de destilação
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Equipamento de laboratório Testador do valor de acidez do óleo de produtos petrolíferos solúveis em água
Teste de óleo de transformador: Key Tests Using Transformer Oil Testers
1. Dielectric Breakdown Voltage (BDV) Test
Objetivo: Measure the voltage at which transformer oil loses its insulating ability, which signals contaminants like moisture or particles.
Procedimento: Place an oil sample between two electrodes with a set gap. Gradually increase voltage until the oil breaks down, and record this voltage.
Importância: A low BDV value signifies the fact that the insulation is not achieving the desired performance, thus the need of oil cleaning or replacement.
2. Dissolved Gas Analysis (DGA)
Objetivo: The gas content of the oil indicates the abnormal conditions of the transformer, such as corona, overheating, or insulation fault.
Procedure: Checking the oil samples with gas chromatography, as well as determining gases such as hydrogen, methane, ethylene, and acetylene, is a doable way.
Significance: There were detected specific gas patterns that are indicative of issues in transformers before they break down.
3. Moisture Content Analysis
Objetivo: Measure water in the oil, as moisture weakens insulation.
Procedure: Use methods like Karl Fischer titration to measure water content in parts per million (ppm).
Significance: High moisture reduces insulation strength and speeds up aging.
4. Interfacial Tension (IFT) Test
Objetivo: Check for polar contaminants and oxidation products in the oil.
Procedure: Measure the force needed to separate the oil-water interface.
Significance: Low IFT values show oil contamination or degradation.
Using transformer oil testers for these tests helps engineers make smart decisions about maintenance, oil cleaning, and transformer management. This keeps power systems reliable and efficient.