Which of the following is a method to troubleshoot a transformer?

Measuring the continuity of the coils is a key method to troubleshoot a transformer as it helps determine if there are any breaks or faults in the winding coils. The continuity test checks for electrical continuity in the coils, ensuring that current can flow properly through the transformer. If there is an open circuit or a short circuit within the windings, it can lead to transformer failure or inefficient operation.

In a transformer, intact coils are crucial for proper electromagnetic induction, which is the principle by which transformers operate. If the coils do not have continuity, it indicates a malfunction that requires repair or replacement.

While other methods like testing load resistance, inspecting physical connections, and measuring input voltage can provide valuable information about a transformer’s performance and overall condition, they do not directly assess the integrity of the winding coils. The continuity test specifically focuses on the primary and secondary windings, making it a fundamental troubleshooting step for diagnosing transformer issues.