A Transformer is a static device which is used to step up(or)step down the voltage in a transforming conductor
Transformer is a static electrical device used to step up or step down the voltage with the help of primary and secondary windings.
to reduce core reluctance..
A potential transformer steps the high voltage down to a level of 120 V to measure them safely and easily.
a hole transformer
A fuse or a circuit breaker can be added directly after the power source (and possibly a transformer) to do this.
Current transformer is a device used to measure the flow of current through a power system and the measured current is inputted to a protective relay system. It is used to detect system malfunction. Current transducer is a device used to measure AC and DC current based on the halt-effect technology.
Transformer has windings
I would talk to your electronic company to see what is being powered by your house. They can explain to you while your neighbor's power went out, but yours did not.
It depends on the ratio of turns from primary to secondary.
yes we can place auto transformer in place of original transformer
If by 'loss current' (?) you mean the 'copper losses', then there is no practical way of doing so without reducing the load current. Perhaps you should explain what you understand 'loss current', in the context of a step-down transformer, to mean?
You would need to have a 12 v ac supply available to step it up to 230 v with a transformer. Please explain what kind of power supply you are working with so that an answer can be provided.