Transformatoröltest
Transformer oil testers (Which is in the Transformatoröl-Test 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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Öl-Oberflächen-Tensiometer Öl-Interfacial-Spannungsprüfer
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Automatische Extraktionsmethode Transformatoröl-Säurewertprüfer
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Umweltfreundliche Öl-Transformator-Spuren-Feuchtigkeitsprüfmaschine mit Fabrikpreis
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Gaschromatographie-Analysator für gelöste Gase bei Transformatorenöl
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Coulometrischer Karl-Fischer-Titrator
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Transformatoröl Wasserlösliche Säure Wert Analyse Instrument
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LCD-Touchscreen Automatischer Transformatoröl-Flammpunkttester mit geschlossenem Becher
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Flammpunktmessgerät mit offenem Tiegel für das Labor
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Pensky-Martens Flammpunktprüfgerät mit geschlossenem Tiegel
Prüfung von Transformatorenöl: Key Tests Using Transformer Oil Testers
1. Dielectric Breakdown Voltage (BDV) Test
Zweck: Measure the voltage at which transformer oil loses its insulating ability, which signals contaminants like moisture or particles.
Verfahren: Place an oil sample between two electrodes with a set gap. Gradually increase voltage until the oil breaks down, and record this voltage.
Bedeutsamkeit: 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)
Purpose: 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
Purpose: 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
Purpose: 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.