LINE INTERACTIVE UPS FULL EXPLAINED (In Hindi)

The line-interactive UPS is similar in operation to a standby UPS, but with the addition of a multi tap variable-voltage auto transformer. This is a special type of transformer that can add or subtract powered coils of wire, thereby increasing or decreasing the magnetic field and the output voltage of the transformer. This may also be performed by a buck-boost transformer which is distinct from an auto transformer, since the former may be wired to provide galvanic isolation.
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