ABB RELION REX640 Technical Manual page 1252

Protection and control

Hide thumbs Also See for RELION REX640:

Table of Contents

Protection related functions

Operation principle

The function can be enabled and disabled with the

corresponding parameter values are "on" and "off".

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

modules in the diagram are explained in the next sections.

Figure 710: Functional module diagram

The applied communication scheme logic in RESCPSCH is selected with the

type setting.

Table 1189: Communication scheme based on the Scheme type value

Scheme type value

"Permissive Underreach"

"Permissive Overreach"

The unblocking scheme (DCUB) is enabled with the

Operation setting. The

Communication scheme

Unblock mode setting.

1MRS759142 F

Technical Manual