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

a. Flare and form one end of the rivet. The flared thickness should be 2.3-3 mm, with a diameter of Φ13.5-14 mm. b. Place the processed silicon steel sheets onto the dedicated fixture for stacking. Trim the core laminations during the stacking process, ensure they are perpendicular to the base plane, and prevent any eccentricity. c. After the core stacking is complete and clamped tightly with a pressure plate, measure the stacking thickness to ensure it meets the drawing requirements. d. Fit the rivets with washers, insulating spacers, and insulating sleeves, then flare and form them. Ensure that the tightness of all installed rivets is consistent. Read More