Electric Motor Visual Inspection Checklist

Generally a good place to start would be the supply intake.

Electric motor visual inspection checklist.

Some sections may explain explicitly between the three configurations but have different requirements for each. All values should be recorded and compared each year. The trend of the readings will indicate the condition of the motor and offer a guide to its reliability. Inadequate air flow or poor ventilation.

To inspect electric motors for possible overheating see checklist in table below and possible remedies. The checklist should also cover inspection of bearings. Acb maintenance withdrawable or fixed check contacts arc chutes secondary injection etc. With electric power checklist 6 26.

Commercial and industrial inspections checklist 7 1. Final visual inspection to insure all clear after work completed. Service equipment feeders and panelboards checklist 6 28. Check and torque test bolted electrical connections as necessary to specified levels.

Perform annual insulation resistance ir and other appropriate tests. Typical bearing problems include insufficient lubrication worn bearings hot motor excessive loading harsh external environments or replacement with the wrong bearing type. Mobile manufactured home site inspections chapter 7. Most motors are designed to operate in ambient temperatures that do not exceed 40 c generally speaking each 10 c rise above its rated tem perature cuts a motor s life in half.

Outdoors checklist 6 27. If the electric motor operates in a rugged environment you will see signs of corrosion and dirt buildup on individual components. Important motors should also receive a thorough visual inspection as well as voltage and current checks. Many sections are mainly applicable to the lv mv induction motor equipment and many others are applicable to either synchronous or dc motors.

Visual inspection for signs of overheating or deterioration. A quick visual inspection can reveal some important details about the electric motor. This will give a reasonable indication of the age type and size of the installation. The complete table of inspection and testing activities that shows each activity to be performed in order to make sure that the installed low and medium voltage electric motors are compliant to the project s specifications and requirements the reference to be followed acceptance criteria responsible personnel related checklist from item.

One of the most common causes of electric motor failures is bearing failure. The first part of a visual inspection is to ensure that the system is safe to test and that you have enough information to be able to carry out the test safely. Take a look at its physical condition and record your observations. This checklist incorporates all range of motors equipment.