Temporary troubleshooting methods for transformer cores when shutdown is not possible: If there is an externally routed grounding wire and the fault current is relatively high, the grounding wire can be temporarily disconnected for operation. However, enhanced monitoring is required to prevent a floating potential from appearing on the core if the fault point happens to disappear. Read More

The magnitude of the main magnetic flux in a transformer core is determined by the excitation current. Since the no-load current of a transformer actually varies with its operating voltage, a higher voltage results in a larger no-load current, which in turn increases the excitation current. Conversely, a lower voltage leads to a smaller no-load current. Read More

When installing the valve chamber cover, excessive tightening force can easily cause it to deform and leak oil. In this case, remove the leaking cover and carefully reshape it by gently tapping it with a wooden stick to restore a flat contact surface. Then, reinstall it with a new gasket. Different parts of the machine may have different oil leak issues, so be careful not to cause any damage to the equipment during the repair process. Read More