U1>
U
a>b
a
b
t
tReset1
t
t1
AND
TR1
ST1
OFF
Delay
ON
Delay
IEC10000100-2-en.vsd
IEC10000100 V2 EN-US
Figure 122:
Logic diagram for step 1, Definite time delay, DT operation
U1<
ST1
TR1
tReset1
t1
IEC10000039-3-en.vsd
IEC10000039 V3 EN-US
Figure 123:
Example for Definite Time Delay stage 1 reset
Section 9
1MRK 505 394-UEN A
Voltage protection
262
Line differential protection RED650 2.2 IEC
Technical manual
Summary of Contents for RED650
Page 1: ...RELION 650 SERIES Line differential protection RED650 Version 2 2 Technical manual...
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