EE-601S (Small Standard TPI)

Tap Position Indicators : EE-601S

Emco Electronics’ Tap Position Indicators are used to indicate the Tap Position of the Power Transformer with On-Load Tap Changer (OLTC). Resistors are connected between each Tap on the Tap-Changer. The connections from the Minimum, Maximum and Wiper positions coming from the Tap-Changer are connected to the respective Min, Max and Wip terminals marked on the Terminal Block.
When the unit is powered on, the display indicates the current position of the Tap-Changer. As the Tap is increased, the display increases and as the Tap is decreased, the display decreases.


  • Microcontroller based architecture
  • Automatic detection of Number of Taps
  • 1KΩ Step Resistance (or as specified)
  • 4-20 mA Input available (Optional)
  • Automatic adjustment of 4-20mA
  • Potentiometer adjustment to compensate the lead resistance
  • Very compact, small size.
  • Bright and clear 7 segment displays for long distance viewing
  • 4-20 mA Input available (Optional)
  • 95-260 V AC/DC Power Input


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