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Table 438:
87T Non group settings (Advanced)
Parameter
Values (Range)
Unit
Step
Default
Description
Min winding tap
-36...36
1
36
The tap position number resulting the minimum
number of effective winding turns on the side of
the transformer where the tap changer is.
Max winding tap
-36...36
1
0
The tap position number resulting the
maximum number of effective winding turns on
the side of the transformer where the tap
changer is.
Tap nominal
-36...36
1
18
The nominal position of the tap changer
resulting the default transformation ratio of the
transformer (as if there was no tap changer)
Tapped winding
1=Not in use
2=Winding 1
3=Winding 2
1=Not in use
The winding where the tap changer is
connected to. Also used to
Step of tap
0.60...9.00
%
0.01
1.50
The percentage change in voltage
corresponding one step of the tap changer
4.3.2.9
Monitored data
Table 439:
87T Monitored data
Name
Type
Values (Range)
Unit
Description
OPR_A
BOOLEAN
0=False
1=True
Trip phase A
OPR_B
BOOLEAN
0=False
1=True
Trip phase B
OPR_C
BOOLEAN
0=False
1=True
Trip phase C
BLKD2H_A
BOOLEAN
0=False
1=True
2nd harmonic restraint block
phase A status
BLKD2H_B
BOOLEAN
0=False
1=True
2nd harmonic restraint block
phase B status
BLKD2H_C
BOOLEAN
0=False
1=True
2nd harmonic restraint block
phase C status
BLKD5H_A
BOOLEAN
0=False
1=True
5th harmonic restraint block
phase A status
BLKD5H_B
BOOLEAN
0=False
1=True
5th harmonic restraint block
phase B status
BLKD5H_C
BOOLEAN
0=False
1=True
5th harmonic restraint block
phase C status
BLKDWAV_A
BOOLEAN
0=False
1=True
Waveform blocking phase A
status
BLKDWAV_B
BOOLEAN
0=False
1=True
Waveform blocking phase B
status
Table continues on next page
Section 4
1MAC059074-MB A
Protection functions
534
615 series ANSI
Technical Manual
Содержание Relion 615 series
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