Gastrodomus SFO500B, User Manual

Page: 52 / 73

Chapter 2 - Machine Specifications
13
Harmonics
The harmonic distortion, for the sum of harmonics from the second to the fifth, should not
exceed 10% of the total voltage with effective value between live conductors. A further
distortion of 2% for the sum of the harmonics from the sixth to the thirtieth on the total
effective value between live conductors is tolerated.
Unbalance of the three-phase power supply voltage.
Neither the inverse sequence component, nor the zero sequence component should exceed
2% of the direct sequence component of the voltage.
Voltage pulses.
These must not last longer than 1.5 ms with a rise/descent time between 500 ns and 500 ms
and a peak value not greater than 200% of the effective value of the rated power supply
voltage.
Breaks in voltage.
The power supply should not be broken or the voltage must not drop to zero for more than 3
ms, regardless of the instant of the supply wave. More than 1 s should elapse between two
consecutive breaks
Voltage drops.
Voltage drops should not exceed 20% of the peak voltage of the power supply for more than 1
cycle. More than 1 s should elapse between two consecutive voltage drops.
Liability
NOTE The manufacturer will not be liable for defects, breakdowns or
malfunctioning arising from the non-compliance with the power supply
values stated.