1.3.3 Glossary AC
Abbreviation for "Alternating Current"
DC
Abbreviation for
11
Direct Current"
Energy
Energy is measured in Wh (watt hours), kWh (kilowatt hours) or MWh (megawatt hours). The
energy is the power calculated over time. For example, your inverter operates at a constant
power of 4600 W for half an hour and then at a constant power of 2300 W for another half an
hour, it has fed 3450Wh of energy into the power distribution grid within that hour.
Power
Power is measured in W (watts), kW (kilowatts) or MW (megawatts). Power is an instantaneous
value. It displays the power your inverter is currently feeding into the power distribution grid.
Power rate
Power rate is the radio of current power feeding into the power distribution grid and the max-
imum power of the inverter that can feed into the power distribution grid.
Power factor
Power factor is the ratio of active power or watts to apparent power or volt amps. They are
identical only when current and voltage are in phase then the power factor is 1.0. The power in
an ac circuit is very seldom equal to the direct product of the volts and amperes, in order to
find the power of a single phase ac circuit the product of volts and amperes must be multiplied
by the power factor.
PV
Abbreviation for photovoltaic.
Wireless communication
The external wireless communication technology is a radio technology that allows the inverter
and other communication products to communicate with each other.The wireless communica-
tion device is not standard. Require to order extral if you need it.
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