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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Tensiómetro de Superfície de Óleo Testador de Tensão Interfacical de Óleo
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Testador de valor de ácido de óleo de transformador de método de extração automática
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Máquina de teste de umidade de traço de transformador de óleo eco-amigável com preço de fábrica
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Analisador de gases dissolvidos por cromatografia gasosa para óleo de transformador
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Titulador Coulométrico Karl Fischer
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Instrumento de análise do valor de ácido solúvel em água do óleo de transformador
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Testador de ponto de inflamação de óleo de transformador de copo fechado automático com ecrã tátil LCD
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Testador de ponto de inflamação de copo aberto para laboratório
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Testador de ponto de inflamação de copo fechado Pensky-Martens
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.