A070695 V4 EN
Figure 386:
Inrush current in transformer
It is recommended to use the second harmonic and the waveform based
inrush blocking from the 87T function, if available.
5.1.6
Signals
Table 669:
INR Input signals
Name
Type
Default
Description
I_2H_A
SIGNAL
0
Second harmonic phase A current
I_1H_A
SIGNAL
0
Fundamental frequency phase A current
I_2H_B
SIGNAL
0
Second harmonic phase B current
I_1H_B
SIGNAL
0
Fundamental frequency phase B current
I_2H_C
SIGNAL
0
Second harmonic phase C current
I_1H_C
SIGNAL
0
Fundamental frequency phase C current
BLOCK
BOOLEAN
0=False
Block input status
Section 5
1MAC059074-MB A
Protection related functions
770
615 series ANSI
Technical Manual
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