1pt 1ct line-to-neutral, 1pt 1ct line-to-line – Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit User Manual
Page 18
18 PowerMonitor 1000 Unit
Rockwell Automation Publication 1408-IN001E-EN-P - September 2013
1PT 1CT Line-to-line
1PT 1CT Line-to-neutral
This special wiring mode is designed for use in new capacitor bank controller installations where
the legacy metering connections described in the preceding section do not apply. In this mode,
the power monitor returns values as if it were configured in Wye mode. Three-phase values are
estimated assuming a balanced load.
The following wiring diagram indicates the connections for the 1PT 1CT Line-to-neutral mode.
A PT is optional. Wiring diagnostics are disabled in this mode.
V1
L1
L2
L3
V2
VN
V3
Load
Line
Ground
Voltage Mode = 1PT1CT Line-to-line
PowerMonitor 1000
Fuses
(by user)
PT
(by user)
CT
(by user)
Shorting terminal
block (by user)
I1+
I2+
I1-
I2-
Ground