Metering Setup

Use “Metering setup” menu to set parameters for metering system current and power.

Metering Setup

Select system type.

Three measurement options are available:

Network Type	Neutral	Phase Current
3-phase, 3-wire, 3 CT (Uses 2 wattmeters)	No	I_a, I_b and I_c measured
3-phase, 4-wire, 4 CT* (Uses 3 wattmeters)	Yes	I_a, I_b, I_c and I_n measured
3-phase, 4-wire, 3 CT (Uses 3 wattmeters)	No	I_a, I_b and I_c measured

NOTE: In the case of a four-pole circuit breaker, the ability to set the neutral is limited by the setting of the neutral type switch on the circuit breaker.

I_n measurement is not available for “3phase, 4-wire, 3 CT” network types and V_an, V_bn and V_cn simple voltage measurements are not available for “3phase, 3-wire, 3 CT” network types.

If these measurements are desired, and if the connected system is a wye (4-wire) system, select “3-phase, 4-wire, 4 CT’ and connect to neutral (V_n) voltage terminal on the neutral CT.

Set System Type

Set current calculation method and interval.

The calculation method can be block interval or thermal calculation.

The window type is factory set as a sliding window.

The time interval can be set from five to 60 minutes in one minute increments.

Set Current Demand

Set power calculation method and interval.

The calculation method can be block interval, thermal calculation or sync. to comms.

NOTE: The sync to comms method is available only with the communication option. This function determines demand power based on a signal from the communication module.

The default window type is sliding.

The time interval can be set from five to 60 minutes in one minute increments.

Set Power Demand

Select sign convention.

Choose the signing convention to be used for reactive power (VARS) and reactive energy (VARhrs) and power factor measurements:

IEEE

IEC

IEEE alt

Metering Setup

Metering Setup

Set System Type

Set Current Demand

Set Power Demand

Set Sign Convention