How does an isolation transformer protect circuits and people from shock?

[elecengr]

Hai all,
How does an isolation transformer protects the circuit and the person from shock. Please explain in detail.

 

[berkeman]

Hai all,
How does an isolation transformer protects the circuit and the person from shock. Please explain in detail.

That was already answered in your other thread:

http://en.wikipedia.org/wiki/Isolation_transformer"

.