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1MAC050144-MB C
Section 4
Protection functions
615 series ANSI
367
Technical Manual
transformer. The CT transforming ratios can be corrected on both sides of the power
transformer with the CT ratio Cor Wnd 1 and CT ratio Cor Wnd 2 settings.
4.6.2.6
Signals
Table 322: 87T Input signals
Table 323: 87T Output signals
Name
Type
Default
Description
I_A1
SIGNAL
0
Phase A primary current
I_B1
SIGNAL
0
Phase B primary current
I_C1
SIGNAL
0
Phase C primary current
I_A2
SIGNAL
0
Phase A secondary current
I_B2
SIGNAL
0
Phase B secondary current
I_C2
SIGNAL
0
Phase C secondary current
BLOCK
BOOLEAN
0=False
Block
BLK_OPR_LS
BOOLEAN
0=False
Blocks trip outputs from Restrained stage
BLK_OPR_HS
BOOLEAN
0=False
Blocks trip outputs from Unrestrained stage
Name
Type
Description
TRIP
BOOLEAN
Trip combined
OPR_LS
BOOLEAN
Trip from low set
OPR_HS
BOOLEAN
Trip from high set
BLKD2H
BOOLEAN
2nd harmonic restraint block status
BLKD5H
BOOLEAN
5th harmonic restraint block status
BLKDWAV
BOOLEAN
Waveform blocking status
Содержание 615 Series ANSI
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Страница 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
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Страница 707: ...Section 15 1MAC050144 MB C Applicable standards and regulations 700 615 series ANSI Technical Manual ...
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