Description
2.4 Electronic trip unit ETU
Air circuit breaker 3WL10
62
Manual, 11/2017, L1V30499596002-01
Enhanced protection functions - only available with
MF Advanced metering function
ETU650 LSI
ETU660 LSIG
V
u
Undervoltage protection V
u
Protection function can be enabled/disabled
●
●
Setting range of undervoltage protection
U
u
= U
n
x ...
0.5 to 0.98 (in steps of 0.01)
Default value: 0.9
0.5 to 0.98 (in steps of 0.01)
Default value: 0.9
Setting range of the delay time for undervoltage
protection
0.05 to 120 s (in steps of 0.01)
Default value: 10 s
0.05 to 120 s (in steps of 0.01)
Default value: 10 s
Enabling/disabling of tripping on undervoltage
protection
●
●
V
o
Overvoltage protection V
o
Protection function can be enabled/disabled
●
●
Setting range of overvoltage protection
U
o
= U
n
x ...
1.02 to 1.5 (in steps of 0.01)
Default value: 1.05
1.02 to 1.5 (in steps of 0.01)
Default value: 1.05
Setting range of the delay time for overvoltage
protection
0.05 to 120 s (in steps of 0.01)
Default value: 10 s
0.05 to 120 s (in steps of 0.01)
Default value: 10 s
Enabling/disabling of tripping on overvoltage
protection
●
●
f
u
Underfrequency protection f
u
Protection function can be enabled/disabled
●
●
Setting range for underfrequency protection
f
u
= f
n
x …
0.9 to 0.999 (in steps of 0.001)
Default value: 0.9
0.9 to 0.999 (in steps of 0.001)
Default value: 0.9
Setting range of the delay time for
underfrequency protection
3 to 300 s (in steps of 0.01)
Default value: 3 s
3 to 300 s (in steps of 0.01)
Default value: 3 s
Enabling/disabling of tripping on
underfrequency protection
●
●
f
o
Overfrequency protection f
o
Protection function can be enabled/disabled
●
●
Setting range for overfrequency protection
f
o
= f
n
x …
1.001 to 1.1 (in steps of 0.001)
Default value: 1.1
1.001 to 1.1 (in steps of 0.001)
Default value: 1.1
Setting range of the delay time for
overfrequency protection
3 to 300 s (in steps of 0.01)
Default value: 3 s
3 to 300 s (in steps of 0.01)
Default value: 3 s
Enabling/disabling of tripping on
overfrequency protection
●
●
PP
Reverse power protection RP
Protection function can be enabled/disabled
●
●
Setting range for reverse power PR = S
n
x …
-0.050 … -1.0 (in steps of
0.001)
Default value: -0.1
-0.050 … -1.0 (in steps of
0.001)
Default value: -0.1
Setting range of the delay time for reverse
power protection
0.5 to 100 s (in steps of 0.1)
Default value: 5 s
0.5 to 100 s (in steps of 0.1)
Default value: 5 s
Definition of direction of power flow
Bottom → top; top → bottom
Default value: top → bottom
Enabling/disabling of tripping on reverse power
●
●
Summary of Contents for SENTRON 3WL10
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Page 8: ...Table of contents Air circuit breaker 3WL10 6 Manual 11 2017 L1V30499596002 01 ...
Page 170: ...Operation 6 3 Troubleshooting Air circuit breaker 3WL10 168 Manual 11 2017 L1V30499596002 01 ...
Page 180: ...Technical specifications Air circuit breaker 3WL10 178 Manual 11 2017 L1V30499596002 01 ...
Page 199: ...Air circuit breaker 3WL10 Manual 11 2017 L1V30499596002 01 197 Circuit diagrams 10 ...
Page 212: ...Circuit diagrams Air circuit breaker 3WL10 210 Manual 11 2017 L1V30499596002 01 ...
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