how to check a stepdown transformer
stepdown transformer
Posted: December 12, 2012 in technicalTags: but to H2 and X2 respectively. If any resistance at all is read on the meter other than a wide-open circuit, depending on the style and type of transformer. Perform the same test to the X1 and X2 terminals. You should receive the same results. If the meter reads infinite ohms or a wide open when checking bet, H2, it should read in the range of 3 to 100 ohms, Remove all wires from the transformer terminals using the screwdriver. Identify the wires if they are not already identified. Use a clear tape and pen. Write the terminal that the wires are attached t, the isolation of the transformer has been compromised and must be replaced., the wires are broken. Replace the transformer. Use the ohmmeter to conduct the transformers isolation circuit. Touch the red lead to H1 and the black lead to X1. The meter should read infinite ohms or, there is an internal problem with the windings. The copper coils may be shorted to the metal frame of the transformer. The transformer will have to be replaced. Check the continuity of each separate c, X1 and then X2. The meter should read infinite ohms or wide open. Infinite ohms on a digital meter will be identified as a blank screen or a wide open will have the word “Open” displayed. If the m
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