janitza UMG511 Installation And Commissioning Manual page 30

Power quality analyser

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Differential current measurement

If the current measurement is taken using

two current converters, the overall translation

ratio of the current converters must be pro-

grammed in the UMG511.

Fig. example of current measurement using a

differential current converter.

Installation

Example

The current measurement takes place using

two current converters. Both current convert-

ers have a translation ratio of 1000/5A. Differ-

ential measurement is carried out wth a differ-

ential current converter 5+5/5A.

The UMG511 must then be set as follows:

Primary current: 1000A + 1000A = 2000A

Secondary current:

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