ABB RELION REX640 Technical Manual page 912

Protection and control

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Table of Contents

Protection functions

Vector shift and rate of change of frequency are two parallel criteria typically used

for detection of Loss of Mains.

Chosen protection criteria can be included in the Application Configuration tool to

create multicriteria loss of mains alarm or trip.

VVSPPAM Input signals

Table 862: VVSPPAM Input signals

VVSPPAM Output signals

Table 863: VVSPPAM Output signals

VVSPPAM Settings

Table 864: VVSPPAM Group settings (Basic)

Values (Range)

Table 865: VVSPPAM Group settings (Advanced)

Values (Range)

Over Volt Blk value

Under Volt Blk value 0.15...1.00

Table 866: VVSPPAM Non group settings (Basic)

Values (Range)

Three-phase voltages

Block signal for acti-

vating the blocking

Protection function internally

1MRS759142 F

Start value for vec-

Voltage above

which function

will be internally

Voltage below

which function

will be internally

Operation Off / On

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