What safety consideration should be considered when working with motors?

What safety consideration should be considered when working with motors?

Safety Rules

• You should always keep your work area clean and well lit.
• All motors include many small parts; keep very young children away from your work area.
• Motors spin very fast; always wear safety goggles.
• Super Glue, provided with most of the kits, is “instant bonding”.

What precautions should be taken when operating a universal motor?

Do not pull or pinch lead wires while the power is on. This may can cause an electric shock. Also, do not touch connectors or other live parts while the power is on. Failure to observe this may result in electric shocks.

What are the precautions to be taken in the case of energy efficient motor applications?

When power is applied, the motor should start up quickly and run smoothly. If it doesn’t, visually check the mechanical assembly. If the motor vibrates excessively, turn off power to the motor using proper lockout procedures.

What three safety precautions must be observed when working around engines?

Safe work with engines

• Remove rings, metal watches, bracelets and any loose clothing before beginning work.
• Tie back long hair.
• Keep hands clear of all moving parts.
• Use extreme caution around engine fans, as these may strike you, fling objects, start unexpectedly, or catch dangling leads or strings.

Why do motors fail?

Common causes of winding failure include high temperature, too many starts, contamination, too much current, excessive voltage and physical damage. Shaft failure is the least common cause of motor failure. Physical damage, corrosion, improper installation and excessive loads are often the root cause.

What are the characteristics should be present in energy-efficient motors?

Description. Energy efficient motors use less electricity, run cooler, and often last longer than NEMA (National Electrical Manufacturers Association) B motors of the same size.

What is energy-efficient technology?

Energy Efficient Technologies in Electrical Systems: Maximum demand controllers, Automatic power factor controllers, Energy efficient motors, Soft starters with energy saver, Variable speed drives, Energy efficient transformers, Electronic ballast, Occupancy sensors, Energy efficient lighting controls, Energy saving …

When to troubleshoot an electric motor, time is money?

When troubleshooting a faulty electric motor, time (or in this case downtime) is money. This notion was drilled into my head in my early years and has proven itself over and over again. Isolating the problem in the shortest amount of time saves costly downtime (and maybe even your job).

What to do if your motor runs in the wrong direction?

Noisy or rough feeling bearings should be replaced by the motor supplier. Make sure the voltage is within 10% of the motor’s nameplate rating. If not, contact your power company or check if some other equipment is taking power away from the motor. 5. Motor Runs in the Wrong Direction

Which is the best way to troubleshoot an AC motor?

For these reasons, it is imperative that the maintenance electrician, technician or engineer uses a troubleshooting methodology that enables them to isolate the problem in the shortest amount of time. Still, the logical process of elimination used to identify the root cause of an ac motor’s malfunctioning can differ.

What to do if your motor has a short or ground?

If there is a short or ground on the line side of the starter, replace the starter contactor and verify that the short or ground is now clear. Next, verify that the load side of the circuit does not have a phase-to-phase short or a phase-to-ground short. This final continuity check will also verify that the motor line does not have an open phase.