Description
2.8 Electronic trip unit ETU
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
80
Manual, 10/2018, L1V30499596002-01
Alarms and functions
ETU650 LSI
ETU660 LSIG
Alarms
Pre-alarms PAL response thresholds - function trigger
Enabling/disabling of PAL response threshold
overload current I
r pal(1)
●
●
Enabling/disabling of PAL response threshold
overload current I
r pal(2)
●
●
Setting range for PAL response threshold over-
load current I
r pal(1)
= I
r
x …
50%, 100% (in steps of 1%)
Default value: 50%
50%, 100% (in steps of 1%)
Default value: 50%
Setting range for PAL response threshold over-
load current I
r pal(2)
= I
r
x …
50%, 100% (in steps of 1%)
Default value: 50%
50%, 100% (in steps of 1%)
Default value: 50%
Enabling/disabling of PAL response threshold
rated current I
n pal(1)
●
●
Enabling/disabling of PAL response threshold
rated current I
n pal(2)
●
●
Setting range for PAL response threshold
rated current I
n pal(1)
= I
n
x …
0.1 to 10 (in steps of 0.01)
Default value: 3
0.1 to 10 (in steps of 0.01)
Default value: 3
Setting range for PAL response threshold
overload current I
n pal(2)
= I
n
x …
0.1 to 10 (in steps of 0.01)
Default value: 3
0.1 to 10 (in steps of 0.01)
Default value: 3
Crossing the response threshold rated current I
n
pal(1)
Direction: from bottom, or from top
Default value: bottom
→ top
Default value: bottom → top
Crossing the response threshold rated current I
n
pal(2)
Direction: from bottom, or from top
Default value: bottom → top
Default value: bottom → top
Checking the phase sequence / alarm
1)
●
●
Checking the phase sequence can be enab-
led/disabled
●
●
Setting range for phase sequence
L1L2L3; L3L2L1
Default value: L1L2L3
L1L2L3; L3L2L1
Default value: L1L2L3
Trip/alarm COS PHI
1)
●
●
Trip COS PHI can be enabled/disabled
●
●
Setting range for checking the COS PHI
0.50 to 0.95 (in steps of
0.01)
Default value: 0.95
0.50 to 0.95 (in steps of
0.01)
Default value: 0.95
Functions Frequency adaptation
●
●
Frequency adaptation with the ETU of the 3-
series with a DIP switch, with the ETU of the 6-
series with menu
50Hz; 60Hz
Default value: 50Hz
50Hz; 60Hz
Default value: 50Hz
Nominal voltage adaptation
●
●
Nominal voltage
100 V AC to 690 V AC
Default value: 400 V AC
100 V AC to 690 V AC
Default value: 400 V AC
1)
Only available with MF Basic or MF Advanced metering function