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Application/inputs and outputs
54
PEM735_D00084_00_M_XXEN/02.2015
7.3 Energy pulsing output
The two LED pulse outputs are used for kWh and kvarh indication, if the function
EN PULSE is enabled. Energy pulsing can be enabled from the front panel through
the EN Pulse setup parameter or via the communications interface.
The LEDs flash each time a certain amount of energy is reached (1 kWh resp. 1
kvarh).
In order to relate the flashing frequency to the amount of energy, the transforma-
tion ratios and the pulse constant have to be considered.
7.4 Power and energy
7.4.1
Basic measurements
The PEM575 provides the following basic measurements with a 1 second update
rate:
three-phase voltages
three-phase currents
three-phase power
three-phase power factors
λ
Neutral current
Frequency
Energy import and export
Voltage and current phase angles
Note:
VT = voltage transformer
CT = measuring current
transformer
Pulses per kWh =
Pulse constant
ratio VT x ratio CT
Amount of energy
per pulse
Pulse constant
ratio VT x ratio CT
=
Содержание LINETRAXX PEM575 Series
Страница 8: ......
Страница 12: ...Making effective use of this document 12 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 28: ...Installation and connection 28 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 62: ...Application inputs and outputs 62 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 82: ...Logging 82 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 88: ...Power Quality 88 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 162: ...Modbus Register Map 162 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 166: ...Technical data 166 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 170: ...INDEX 170 PEM575_D00016_00_M_XXEN 04 2015 ...
Страница 171: ......