KEM
Technical Support:
7
1.3
MEASURED QUANTITIES
Next, the quantities measured by the KEM that can be sent to the bus for monitoring are
described.
1.3.1
ELECTRICITY
Magnitudes of each conductor or phase:
Current:
rms value expressed in milliamps [
mA
].
Active power
: effective power capable of transforming electrical energy into
work. Measured in watts [
W
] or kilowatts [
kW
], as selected by parameter.
Consumed active energy
: time integration of the active power. Measured in
watts hour [
W·h
] or kilowatts hour [
kW·h
], as selected by parameter.
Global magnitudes:
Current
: arithmetic sum of the currents of each of the phases.
Active power
: sum of the active powers of each of the phases. Measured in
watts hour [
W·h
] or kilowatts hour [
kW·h
], as selected by parameter.
Consumed active energy
: time integration of the global active power.
Measured in watts hour [
W·h
] or kilowatts hour [
kW·h
], as selected by
parameter.
There are two additional objects that represent magnitudes not measured by KEM.
Although they are set by parameter, assigning them the desired value by object is
possible:
Voltage:
magnitude available for each phase expressed in rms and millivolt
units [
mV
].
Power Factor:
global magnitude that expresses the relation between active
and apparent power (dimensionless).