Chapter 11 Phase Reversal & Phase Imbalance Set Limits/Relays
11.3 G
ROUP
7, F
UNCTION
0: V
OLTAGE
P
HASE
R
EVERSAL
D
ETECTION
Ö
To change the
PHASE REVERSAL
settings, follow these steps:
NOTE:
PRESS
MAX/MIN/LIMITS
, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH
.
MAX
AC VOLTS
A B C N
AC AMPS
MAX/MIN
LIMITS
VOLTS
PRINT
PROG
PHASE
NEXT
7.
AMPS
B C A
I I I
A B C
N N N
I I I
A B C
LM2
LM1
MIN
MAX
AC VOLTS
A B C N
AC AMPS
MAX/MIN
LIMITS
VOLTS
PRINT
PROG
PHASE
NEXT
70.
AMPS
B C A
I I I
A B C
N N N
I I I
A B C
LM2
LM1
MIN
_
__
Step 1
:
a.
Enter Group Level of Programming Mode
(see Chapter 2).
b.
Press
MAX/MIN/LIMITS
until
7.
appears in upper
display.
c.
Press
VOLTS
to activate the Group.
Ö
70.
appears in upper display.
Ö
Lower display indicates current settings for
Enable/Disable Phase Reversal Detection.
MAX
AC VOLTS
A B C N
AC AMPS
MAX/MIN
LIMITS
VOLTS
PRINT
PROG
PHASE
NEXT
70
AMPS
B C A
I I I
A B C
N N N
I I I
A B C
LM2
LM1
MIN
__
_
Step 2
:
a.
Press
VOLTS
once.
Ö
Three dashes appear in lower display.
b.
Press
PRINT/PROG
to change current Set
Above/Below, Trip Relay 1, and Trip Relay 2 settings.
Ö
This toggles the segments UP (above limit) or DOWN
(below limit).
c.
Press
VOLTS
to store.
39
GE Industrial Systems