ABB RET650 Technical Manual page 340

Relion 650 series transformer protection
Hide thumbs Also See for RET650:
Table of Contents

Advertisement

Section 12
Control
334
Name
Type
ULOW
BOOLEAN
UBLK
BOOLEAN
HOURHUNT
BOOLEAN
DAYHUNT
BOOLEAN
HUNTING
BOOLEAN
SINGLE
BOOLEAN
PARALLEL
BOOLEAN
TIMERON
BOOLEAN
ADAPT
BOOLEAN
TOTBLK
BOOLEAN
AUTOBLK
BOOLEAN
MASTER
BOOLEAN
FOLLOWER
BOOLEAN
MFERR
BOOLEAN
OUTOFPOS
BOOLEAN
UGTUPPDB
BOOLEAN
ULTLOWDB
BOOLEAN
COMMERR
BOOLEAN
ICIRC
BOOLEAN
TRFDISC
BOOLEAN
VTALARM
BOOLEAN
T1PG
BOOLEAN
T2PG
BOOLEAN
T3PG
BOOLEAN
T4PG
BOOLEAN
1MRK 504 135-UEN A
Description
Busbar voltage below the set limit
voltBusbMinLimit
Busbar voltage below the set limit
voltBusbBlockLimit
Number of commands within the latest hour
exceeded maximum level
Number of commands within the last 24 hours
exceeded maximum level
Number of commands in opposite direction
exceeded maximum level
Transformer operates in single mode
Transformer operates in parallel mode
Raise or lower command to the tap activated
Transformer is adapting
Block of auto and manual commands
Block of auto commands
Transformer is master
This transformer is follower
Number of masters is different from one
Difference in tap positions exceeded the set limit
Voltage greater than deadband-high, ULOWER
command to come
Voltage lower than deadband-low, URAISE
command to come
Communication error
Block from high circulating current
Transformer is disconnected
VT supervision alarm
Transformer 1 included in parallel group
Transformer 2 included in parallel group
Transformer 3 included in parallel group
Transformer 4 included in parallel group
Technical manual

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents