Mechanical Tests
Vibration and Shock Stress in Stationary Use
Standards IEC 60255-21 and IEC 60068
Vibration Test (sinusoidal)
IEC 60255-21-1, class 2 and
IEC 60068-2-6
Sinusoidal 10 Hz to 60 Hz: ± 0.075 mm
Amplitude 60 Hz to 150 Hz; 10 m/s
2
acceleration
Frequency sweep 1 octave/min
20 cycles in 3 axes perpendicular to one another
Shock Test
IEC 60255-21-2, class 1
Semi-sinusoidal
Acceleration 50 m/s2
Duration 11 ms
3 shocks each in both directions of the 3 axes
Seismic Tests
IEC 60255-21-3, class 2 and
IEC 60068-3-3
Sinusoidal 3 Hz to 35 Hz: Frequency sweep
1 octave/min
1 cycle in 3 axes perpendicular to one another
3 Hz to 8 Hz: ± 7.5 mm amplitude (horizontal axes)
3 Hz to 8 Hz: ± 3.5 mm amplitude (vertical axis)
8 Hz to 35 Hz: 20 m/s2 acceleration (horizontal axes)
8 Hz to 35 Hz: 10 m/s2 acceleration (vertical axis)
Vibration and Shock Stress during Transport
Standards
IEC 60255-21 and IEC 60068
Vibration Test (sinusoidal)
IEC 60255-21-1, class 2 and
IEC 60068-2-6
Sinusoidal 5 Hz to 8 Hz: ± 7.5 mm
Amplitude 8 Hz to 150 Hz: 20 m/s
2
acceleration
Frequency sweep 1 octave/min
20 cycles in 3 axes perpendicular to one another
Shock Test
IEC 60255-21-2, class 1 and
IEC 60068-2-27
Semi-sinusoidal
Acceleration 150 m/s
2
Duration 11 ms
3 shocks each in both directions of the 3 axes
Continuous Tests
IEC 60255-21-2, class 1 and
IEC 60068-2-27
Semi-sinusoidal
Acceleration 100 m/s
2
Duration 16 ms
1000 shocks each in both directions of the 3 axes
1.7
1.7.1
1.7.2
7XR81 – Coupling Device for Rotor Ground-Fault Protection
1.7 Mechanical Tests
SIPROTEC, Coupling Units for Generator Protection, Manual 21
C53000-H5040-C072-1, Edition 09.2018
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