User Documentation

142
Devices – Energy Analyser 550
2008050000/03/02-2018
INFOBEREICH
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Current transformers
• The converter requirements for the main measurement and secondary measurement must be deter-
mined separately.
• Select the 5/5 A setting when measuring currents directly.
4.4.3.7 Phase mapping
Thephasewiringandtheelectricityconsumerwiringcanberedenedbythephaseassignments.
4.4.3.8 Connection variants
Set the device’s connection variant for the voltage and current measurements (operating manual).
4.4.3.9 Nominal values
• The measurement channels are addressed via the rated frequency. Select the mains frequency in ac-
cordance with the existing mains.
• Nominal values are required as a reference to identify events (over/undervoltage and overcurrent), har-
monicsandickerswillrequirethenominalvaluesasreference.
• The rated current of the transformer at the supply is required in order to calculate the K factor.
• The relevant voltage indicates whether a measurement is to be made between the outer conductor L-L or
between outer conductor L and neutral conductor N.
• Therelevantvoltageisrequiredforthecalculationofharmonics,eventsandicker.
• The relevant voltage can be set for Energy Analyser 550 devices. For Energy Analyser D550 and Energy
Meter610deviceswiththermwaresmallRel.2.x,therelevantvoltageisnotadjustableandisalways
L-N.
• In the 3-conductor network (e.g. mean voltage) the relevant voltage relates to a calculated star point.
4.4.3.10 Ripple control signal
The ripple control voltage is a voltage measured with a carrier frequency established by the user. Only fre-
quencies below 3 kHz are taken into account.
Events
• An event occurs if threshold values set for the current and the voltage are violated.
• An event has a mean value, a minimum or maximum value, a start time and an end time.
• The ecoExplorer go event browser can display recorded events.