ABB RELION REX640 Technical Manual page 926

Protection and control

Hide thumbs Also See for RELION REX640:

Table of Contents

Protection functions

FRPFRQ Input signals

Table 883: FRPFRQ Input signals

FRPFRQ Output signals

Table 884: FRPFRQ Output signals

FRPFRQ Settings

Table 885: FRPFRQ Group settings (Basic)

Values (Range)

Operation mode

4=Freq< + df/dt

5=Freq> + df/dt

6=Freq< OR df/dt

7=Freq> OR df/dt

Start value Freq>

0.9000...1.2000

Start value Freq<

0.8000...1.1000

Table continues on the next page

Three-phase voltages

Block signal for acti-

vating the blocking

Operate signal for overfre-

Operate signal for underfre-

Operate signal for frequency

Start signal for overfrequency

Start signal for underfre-

Start signal for frequency

1MRS759142 F

Frequency protec-

tion operation

mode selection

Frequency start val-

ue overfrequency

Frequency start val-

ue underfrequency

Technical Manual