Product overview
EL34xx
24
Version: 1.5
Fig. 15: Power s
(t)
curve
In the first step, the power s
(t)
is calculated at each sampling instant:
The mean value is calculated over a period.
The power frequency is twice that of the corresponding voltages and currents.
Apparent power measurement
In real networks, not all consumers are purely ohmic. Phase shifts occur between current and voltage. This
does not affect the methodology for determining the RMS values of voltage and current as described above.
The situation for the active power is different: Here, the product of RMS voltage and RMS current is the
apparent power.
The active power is smaller than the apparent power.
S: apparent power
P: active power
Q: reactive power
φ: Phase shift angle
Summary of Contents for EL34 Series
Page 2: ......
Page 52: ...Mounting and wiring EL34xx 52 Version 1 5 Fig 35 Other installation positions ...
Page 58: ...Mounting and wiring EL34xx 58 Version 1 5 EL3453 LEDs and connection Fig 40 EL3453 LED s ...
Page 92: ...Commissioning EL34xx 92 Version 1 5 Fig 86 Incorrect driver settings for the Ethernet port ...
Page 130: ...Commissioning EL34xx 130 Version 1 5 Fig 147 Process Data tab SM3 EL3443 ...
Page 131: ...Commissioning EL34xx 131 Version 1 5 Fig 148 Process Data tab SM3 EL3453 ...
Page 132: ...Commissioning EL34xx 132 Version 1 5 Fig 149 Process Data tab SM3 EL3483 ...
Page 160: ...Commissioning EL34xx 160 Version 1 5 Index F802 PMX Guard Settings ...
Page 183: ...Commissioning EL34xx 183 Version 1 5 Index F802 PMX Guard Settings ...
Page 205: ...Commissioning EL34xx 205 Version 1 5 Index 1C13 TxPDO assign ...
Page 214: ...Commissioning EL34xx 214 Version 1 5 Index F802 PMX Guard Settings ...
Page 242: ...Commissioning EL34xx 242 Version 1 5 Index 1C13 TxPDO assign ...
Page 259: ...Application examples EL34xx 259 Version 1 5 7 Application examples ...