Installation
21
3) Three Wire Open Delta Connection Using 2 PTs, 3 CTs (2½-
element)
This configuration, shown in
Figure 2-7
, can be used with either 660V or 120V
input. Readings represent
line-to-line
voltages. All three line currents are measured.
The common taps of the PT secondaries are connected to terminal 11.
Note the connection between terminals 5 and 11.
Figure 2-7 3-Wire Open Delta Connection Using 2 PTs, 3 CTs (2½-element)
WIRING MODE 3OP3
