what are step-ups and step_down transformer
Answers
Explanation:
Definition of Step-up transformer:
When the voltage is raised on the output side, the transformer is called the step-up transformer. In this transformer, the number of turns in the secondary winding is always greater than the turns in the primary winding because a high voltage is developed on the secondary side of a transformer.
In countries like India, usually, power is generated at 11kv. For economical reasons, a.c.power is transmitted at very high voltages (220v-440v) over long distances. Therefore a step-up transformer is applied at the generating station.
Definition of Step-down transformer:
A step-down transformer reduces the output voltages or in other words, it converts high voltage, low current power into a low voltage, high current power. For example, our power circuit carries 230-110v, but the doorbell requires only 16v. So, a step-down transformer should be used to reduce the voltage from 110v or 220v to 16v.For feeding different areas, voltages are stepped down to 440v/230v for safety reasons.Thus, the number of turns on secondary winding is less than the primary winding so; less voltage is induced at the output (secondary) end of the transformer.