ABB RELION REX640 Technical Manual page 1320

Protection and control

Hide thumbs Also See for RELION REX640:

Table of Contents

Supervision functions

Analog channel configuration

HZCCxSPVC has one analog group input which must be properly configured.

Table 1253: Analog inputs

Improper analog channel configuration causes a validation error if the analog

channels are not completely configured or they do not match with certain settings.

For troubleshooting, check the contents of this chapter and also the preprocessing

blocks in this document. The configuration can be written to the protection relay

once the mismatch is corrected.

Operation principle

The function can be enabled and disabled with the

corresponding parameter values are "On" and "Off".

The operation of HZCCxSPVC can be described with a module diagram. All the

modules in the diagram are explained in the next sections.

The module diagram illustrates all the phases of the function. However, the

functionality is described only for phase A. The functionality for phase B and C is

See the preprocessing function blocks in this document for the possible

signal sources.

Three-phase currents

Operation setting. The

1MRS759142 F

Technical Manual