EarthQuake 3300V Manuel d'instructions Page 24

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Chapter3. Specification and Operation
hapter3. Specification and Operationhapter3. Specification and Operation
hapter3. Specification and Operation
N5000 INSTRUCTION MANUAL
N5000 INSTRUCTION MANUALN5000 INSTRUCTION MANUAL
N5000 INSTRUCTION MANUAL
Figure 3-15 power cell control board
Figure 3-14 Organization of Inverter control part
3.3.5 Power Cell Bypass (optional)
It is common to halt all the inverter system when the power cell failure occurs. But in “Power Cell
Bypass” method, inverter eliminates only the layer in which power cell failure occurred and keeps
running for high inverter efficiency.
In N5000 series, additional bypassing switches are installed to run the inverter with lowered
voltage for important loads that should not be stopped. So that operator can fix the inverter
without stopping. Additional switches are composed of bidirectional SCRs because the 3-phase
current of the load is bidirectional.
Optic connector
Program download connector
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