Energy pulsing considerations

The meter’s alarm / energy LED and digital output(s) are capable of energy pulsing within specific limits.

Description Alarm / energy LED Digital output
Maximum pulse frequency 2.5 kHz 25 Hz
Minimum pulse constant 1 pulse per k_h
Maximum pulse constant 9,999,999 pulses per k_h

The pulse rate depends on the voltage, current and PF of the input signal source, the number of phases, and the VT and CT ratios.

If Ptot is the instantaneous power (in kW) and K is the pulse constant (in pulses per k_h), then the pulse period is:

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