Base Values - ABB COM600 series User's & Technical Manual

5.1 substation analytics

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4.4.

COM600 series 5.1

Substation Analytics Technical Manual

Taps or spurs in the feeder

If the protected feeder consists of taps or spurs, the measured fault impedance corresponds

to several physical fault locations (For example, A or B in Figure 4.3-34).

The actual fault location must be identified using additional information, for example,

short circuit current indicators placed on tapping points.

Figure 4.3-34 Fault on a distribution line with spurs

Fault report function SCEFRFPR

This is a fault package report creating function block, It will create a report every time

a fault package is generated.

All monitored fault data will be recorded in the report including: Triggering, fault type,

un-supply time, breaks, phase, fault current, load current, Resistance, capacitance, fault

distance, validity, etc.

This report function will provide the report that COM600 WebHMI can handle and

present to the user.

Base Values

In this function block, some of the settings are set in per unit (pu). These pu values are

relational to certain base values, for example the values given in A, kV and kVA. The

IED supports alternative base value groups for the phase current or voltagerelated settings,

1MRS758734

fault_on_distribution_line_with_spurts.png

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