requirement for AC appliances

[izzu91]

what happen when AC appliances received non-smooth sinusoidal sine wave for current and voltage? and what happen when they received square current and voltage?

 

[tpetar]

Motor start to huming and temperature is increased, motor receives more currents. If quality of product is bad, serious defect can occur.

 

[ebclr]

This will depend off the nature off the apliance, If they have a swithing power suply probably the will work on the same way, but if they have standard transformes and motors, they will not be happy with the energy on the harmonics, and be work hot, with less eficency and even be damaged. Non sinusoidal means you have energy on the main frequency and on harmonics.

 

[Tahmid]

Circuits where the AC is first rectified and filtered, such as in SMPS, will not face problems. Similarly, many lighting devices such as bulbs or fluorescent lamps with electronic ballast may not cause problems. Motor-based systems will have reduced torque/speed and slight noise, but may or may not get damaged.

Hope this helps.
Tahmid.