Power Quality
Electrical Power is now a days is widely used for various advanced Electronic equipment. Many equipment like Transformers, Motors may be robust but Electronic devices like TVs, Audio amplifiers, Computers etc cannot tolerate the variations in power supply and may fail prematurely.
A study of all the parameters like Voltage variations like Brownouts, Blackouts, Surges, sags, Glitches, Harmonics, interference to communication circuits, will help in increasing the life of Equipment.