15 Protection relay and functionality tests
Table 1687: Electromagnetic compatibility tests
Description Type test value Reference
1 MHz/100 kHz burst disturb-
ance test
• Common mode
• Differential mode
2.5 kV
2.5 kV
IEC 61000-4-18
IEC 60255-26, class III
IEEE C37.90.1-2012
3 MHz, 10 MHz and 30 MHz
burst disturbance test
• Common mode
2.5 kV IEC 61000-4-18
IEC 60255-26, class III
Electrostatic discharge test
• Contact discharge
• Air discharge
8 kV
15 kV
IEC 61000-4-2
IEC 60255-26
IEEE C37.90.3-2001
Radio frequency interference
test
10 V (rms)
f = 150 kHz...80 MHz
10 V/m (rms)
f = 80...2700 MHz
10 V/m
f = 900 MHz
20 V/m (rms)
f = 80...1000 MHz
IEC 61000-4-6
IEC 60255-26, class III
IEC 61000-4-3
IEC 60255-26, class III
ENV 50204
IEC 60255-26, class III
IEEE C37.90.2-2004
Fast transient disturbance
test
• Communication
• Other ports
2 kV
4 kV
IEC 61000-4-4
IEC 60255-26
IEEE C37.90.1-2012
Surge immunity test
• Communication
• Other ports
1 kV, line-to-earth
4 kV, line-to-earth
2 kV, line-to-line
IEC 61000-4-5
IEC 60255-26
Power frequency (50 Hz)
magnetic field immunity test
• Continuous
• 1...3 s
300 A/m
1000 A/m
IEC 61000-4-8
IEC 60255-26
Pulse magnetic field immuni-
ty test
1000 A/m
6.4/16 µs
IEC 61000-4-9
Table continues on the next page
1MRS759142 F Protection relay and functionality tests
REX640
Technical Manual
1949
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