Products

Tap Position Indicators are used to indicate the Tap position of the Power Transformer with On Load Tap-Changer (OLTC). The 3 wires coming from the OLTC (Min, Wiper, Max) are connected to the TPI along with the Auxiliary Supply. In case only 2 wires are available, short Wiper and Max terminals. As the tap of the Power Transformer changes, the display is updated. When the wiper is open the display indicates zero.

Technical Specifications

SL NO	PARAMETERS	DESCRIPTION
1	Max. No. of tap positions	35 Taps
2	Step Resistance/Tap	1K ± 1% or user defined
3	Display	2 Digit 7 segment LED
4	Auxiliary Supply	90-260V AC/DC
5	Panel Cut-out Dimensions	92 x 92 mm (H x W)
6	Operating temperature	0⁰C - 45⁰C