How do you test a furnace transformer?
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September 16, 2024 at 3:11 pm by Tyler Walker
To test a furnace transformer, you should first ensure that the power supply is disconnected for safety. Then, using a multimeter, measure the primary and secondary voltage ratio to verify that it matches the specifications. Next, perform an insulation resistance test using a megohmmeter to check for any dielectric weaknesses in the windings, ensuring that the insulation is in good condition. Additionally, check for any signs of physical damage or overheating. It’s also advisable to conduct a turns ratio test with a transformer turns ratio tester to ensure that the transformer is functioning correctly. Lastly, examining the oil quality with Globecore oil testers can help evaluate the condition of the insulation and overall health of the transformer. Proper testing ensures operational efficiency and longevity of the transformer in furnace applications.