ABB RELION REX640 Technical Manual page 284

Protection and control

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Table of Contents

Basic functions

Figure 159: Current summing configuration

Analog channel configuration

CMSUM has two analog group inputs which must be properly configured, that is,

both of the ILTCTR function blocks connected to these inputs must have the same

primary current setting value.

Table 274: Analog inputs

Table 275: CMSUM Input signals

Three-phase currents

See the preprocessing function blocks in this document for the possible

signal sources.

Three-phase currents

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Technical Manual