Advantages:
1.A transformer will increase or decrease AC voltages, currents, or impedance.
2.The available power cannot change, but will slightly decrease, depending on the efficiency of the transformer.
3.A transformer may also be used to isolate grounds.
4.Transformers are need less monitoring required but widely used in power transmission.
5.High efficiency and Less capital/maintenance cost.
6.Easy to move, add and remove.
7.No starting time.
Application:
1.VCRS, Copy machine , Audio equipment , Game machines
2.TV sets, Microcomputer equipment, printers, Terminals
3.Communications control equipment
4.Switching power supply, chargers, alarm system
5.UPS, VCD/DVD players, audio and visual equipment
6. OA machines, inverters, chargers, alarm system