Fault analysis and processing method of synchronous motor 1. Fault phenomenon: grounding or inter-turn short circuit of rotor excitation winding cause of issue: (1) The cause of grounding is mainly caused by damage or moisture of the field winding due to poor fixing, insulation breakdown and voltage breakdown; (2) In addition to the above reasons, the short circuit is also broken or damaged. Approach: (1) Repaint, dry and fix the excitation winding, check whether the action of the overvoltage protection device is normal, and replace the damaged winding or coil; (2) Repair or replace the de-excitation resistor. 2, failure phenomenon: stator winding failure Cause of failure: Check the cause of the failure of the three-phase AC asynchronous motor. Treatment method: The same as the fault handling method of the three-phase asynchronous motor. 3, failure phenomenon: poor contact between the brush and the collector ring causes wear cause of issue: (1) The brush spring pressure is not suitable or the vibration is too large; (2) The brush size that is selected does not meet the requirements or the brush of different specifications is mixed; (3) The surface of the collector ring is dirty or too rough. 4. Fault phenomenon: the damper winding is unwelded, disconnected or shaken cause of issue: (1) Synchronous motor out of step; (2) When the synchronous motor starts to start work, the excitation time is connected early or late; (3) frequent start; (4) The quality of the damper winding is not good. Approach: Operate as required, and try to avoid repairing the damper winding.
Low Smoke Zero Halogen Cables
Applications: Those Electrical Wire suitable for power & lighting circuits and building wiring. Also suitable for use as an earth wire the internal wiring of appliances and apparatus.
Standard applied: IEC60227, BS 6004
Rated Voltage: 300/300V 300/500V 450/750V
Insulation: LSOH, FR-PVC (Polyvinyl Chloride)
Certification: CE
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