E-Mon E-PS-E-RTU-N - Manual (Page 76)

Chapter 5 Configuring the PowerSmart+ PQM General Meter Setup
76 PowerSmart+ Power Quality Meter
Parameter Options Default Description
Volt/Ampere
Demand Period 0-1800 sec 900 sec The length of the demand period
for ampere and volt demand
calculations
1. Always specify the wiring mode and transformer ratings prior to
setting up setpoints and analog outputs.
2. The maximum value for the product of the phase CT primary
current and PT ratio is 57,500,000. If the product is greater, power
readings are zeroed.
Figure 5-6: General Setup Dialog Box – Basic Setup Tab
Table 9 lists the available wiring modes.
Table 9: Wiring Modes
Wiring Mode Description
3OP2 3-wire Open Delta using 2 CTs (2 element)
4LN3 4-wire Wye using 3 PTs (3 element), line-to-neutral voltage readings
3DIR2 3-wire Delta Direct Connection using 2 CTs (2 element)
4LL3 4-wire Wye using 3 PTs (3 element), line-to-line voltage readings
3OP3 3-wire Open Delta using 3 CTs (2½ element)
3LN3 4-wire Wye using 2 PTs (2½ element), line-to-neutral voltage
readings
3LL3 4-wire Wye using 2 PTs (2½ element), line-to-line voltage readings
3BLN3 3-wire Broken Delta using 2 PTs, 3 CTs (2½ element), line-to-neutral
voltage readings
3BLL3 3-wire Broken Delta using 2 PTs, 3 CTs (2½ element), line-to-line
voltage readings