Section 4
1MAC050144-MB C
Protection functions
380
615 series ANSI
Technical Manual
4.6.3.6
Signals
Table 328: 87LOZREF Input signals
Table 329: 87LOZREF Output signals
4.6.3.7
Settings
Table 330: 87LOZREF Group settings
Table 331: 87LOZREF Non group settings
Name
Type
Default
Description
I_A
SIGNAL
0
Phase A current
I_B
SIGNAL
0
Phase B current
I_C
SIGNAL
0
Phase C current
I0
SIGNAL
0
Zero-sequence current
BLOCK
BOOLEAN
0=False
Block signal for activating the blocking mode
Name
Type
Description
TRIP
BOOLEAN
Trip
PICKUP
BOOLEAN
Pickup
BLK2H
BOOLEAN
2nd harmonic block
Parameter
Values (Range)
Unit
Step
Default
Description
Trip value
5...50
%In
1
5
TRip value
Minimum trip time
40...300000
ms
1
40
Minimum trip time
Restraint mode
1=None
2=Harmonic2
1=None
Restraint mode
Pickup value 2.H
10...50
%In
1
50
The ratio of the 2. harmonic to fundamental component
required for blocking
Parameter
Values (Range)
Unit
Step
Default
Description
Operation
1=Enable
5=Disable
5=Disable
Operation Disable / Enable
Reset delay time
0...60000
ms
1
20
Reset delay time
CT connection type
1=Type 1
2=Type 2
2=Type 2
CT connection type
Содержание 615 Series ANSI
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Страница 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Страница 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Страница 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Страница 707: ...Section 15 1MAC050144 MB C Applicable standards and regulations 700 615 series ANSI Technical Manual ...
Страница 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
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