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Technical Data
4.3 Functional Data
Conducted interference,
only auxiliary supply
IEC-CISPR 22
Radio interference field strength
IEC-CISPR 22
Insulation tests
Standards:
Voltage test (100 % test)
All circuits except for auxiliary
supply, binary inputs and
communication interfaces
Auxiliary voltage and binary
inputs (100 % test)
RS485/RS232 rear side
communication interfaces
and time synchronization
interface (100 % test)
Impulse voltage test (type test)
All circuits except for
communication interfaces
and time synchronization
interface, class III
■
98
150 kHz to 30 MHz
Limit class B
30 MHz to 1000 MHz
Limit class B
IEC60255-5-2000
2.5 kV (rms), 50 Hz
3.5 kV–
500 V (rms), 50 Hz
IEC60255-5-2000
5 kV (peak); 1.2/50 μs; 0.5 J
3 positive and 3 negative impulses
at intervals of 5 s
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
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