beautypg.com

Vanguard DigiTMR S2 PC User Manual

Page 25

background image

REV 1 DIGITMR S2 PC USER’S MANUAL

22

2.3.5. AC Current Sensor Connection

The DigiTMR S2 PC can sense a breaker’s bushing current by using a clamp-on AC current sensor
connected to the breaker’s bushing CT. The AC current sensor is used in “On-Line” Mode only.
The AC current sensor requires a minimum of 100 mA to operate. The maximum current is 25
Amperes. A typical AC sensor connection is shown in Figure 8.

Figure 8. Typical CT Connection