HRW PMAC770, Руководство по установке и эксплуатации

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11.
11. 11.
11. Energy
Energy Energy
Energy and
and and
and Multi-tariff
Multi-tariff Multi-tariff
Multi-tariff Energy
Energy Energy
Energy Statics
Statics Statics
Statics
11.1 11.1 11.1 11.1 General General General General Description Description Description Description
According to the direction of power, PMAC770 calculates 4 quadrant kWh/ kvarh, and
statics multi-tariff energy and history energy data,
PMAC770 accumulates the energy value since it was powered on at the first time. (In
case that users clear the energy to 0, the meter will re-accumulate the energy from 0)
Until the value reach 99,999,999.9 kWh/ kvarh, it will auto-turnover.
Under different connection mode, PMAC770 accumulates the energy in different way,
as below sheet:
Connection Connection Connection Connection mode mode mode mode Energy Energy Energy Energy calculation calculation calculation calculation
3-phase 4-wire
Per phase 4 quadrant energy
Total energy
Multi-tariff energy
History energy
3-phase 3-wire
Total energy
Multi-tariff energy
History energy
Note: User can clear the energy to 0 on panel by keys, or clear from communication.
11.2 11.2 11.2 11.2 Active Active Active Active E E E Energy nergy nergy nergy
PMAC770 calculates the active energy according to the accumulated active power.
And it distinguishes the direction of active/ reactive power to separately calculate per
phase/ total active energy in 4 quadrants.
HRW Limited
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