(A) After installing the CT for the explosion-proof induction motor, it is essential to conduct regular inspections of the current transformer (CT). These inspections should include a visual examination, wiring assessment, and insulation resistance measurement. The visual inspection is crucial to identify any damage or deformation to the CT shell. The wiring inspection is essential to ensure that the wiring is secure and correctly connected. The insulation resistance measurement is vital to assess the effectiveness of the CT insulation. (F-class insulation motor)
(B) In the event of a current transformer failure, it is essential to address the issue promptly and effectively. The most common faults are secondary open-circuit, insulation damage, and an increase in errors. In the event of a secondary open-circuit fault, it is imperative to disconnect the primary side of the current immediately and then proceed with a thorough examination and necessary repairs. In the case of insulation damage, the current transformer must be replaced. Finally, if there is an increase in errors, it is essential to ascertain whether the wiring is correct, whether the load is excessive, and take the appropriate corrective action. explosion-proof asynchronous motor.
(C) Regular preventive testing is essential to guarantee the safe and reliable operation of the current transformer for asynchronous explosion-proof AC electric motor. The preventive testing procedure includes insulation resistance measurement, ratio measurement, precision calibration, and saturation time measurement. By conducting regular preventive tests, potential transformer failures can be identified and addressed in a timely manner, preventing them from occurring.
Post time: Oct-29-2024
