This instrument indicates the tap position of ON LOAD tap changes employed in transformers with options of resistance input, 4-20mA input or BCD input. Options available with display of voltage as well available. With the availability of 4-20 mA DC signal output, the instruments can be used to integrate TAP position readings to scada systems.
This instrument is used to convert the Tap Position of ON-LOAD TAP CHANGER employed in Transformer, into corresponding DC Current Signal Outputs. THIS SYSTEM IS ELECTRICALLY ISOLATED FROM INPUT POWER SUPPLY. Purely a transmitter, this can be used where there is no requirement of indication or in conjunction with a separate
indicator. With the availability of 4-20 mA DC signal output, the instruments can be used to integrate TAP position readings to scada systems.
This Scheme is used to regulate the secondary voltage of power transformer and distribution transformer with ON-LOAD tap changer (OLTC). This system electrically Isolated from Input power supply.