Data library
8.4 Units
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
177
8.4
Units
The measured values have the following measuring units unless otherwise indicated in the
tables:
Measured value
Measuring unit
Name
Current
A
Ampere
Voltage
V
Volts
Power
kW
kilowatt
Power
kVA
kilovolt ampere
Reactive power
kVA
r
kilovolt ampere (reactive)
Energy
kWh
kilowatt/hour
Reactive energy
kVArh
kilovolt ampere (reactive)/hour
Energy
MWh
megawatt/hour
Reactive energy
MVA
r
h
Megavolt ampere (reactive)/hour
Temperature
°C
Degrees Celsius
THD/form factor/peak factor
%
Percent
Frequency
Hz
Hertz
Delay time
s
Seconds
This also applies to the min./max. values.
8.5
Function classes
8.5.1
Function classes of the data points
In this section, the data points are combined into function classes. Function classes are, for
example, data for identification, device parameters, or measured values. This subdivision
quickly enables users to find the desired data point and its properties.