REVCON RLD B, Руководство по эксплуатации

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Electrical Installation
Operating instructions RLD 99
ELTROPLAN
-
REVCON

Elektrotechnische Anlagen GmbH
4.5 Application example
Figure 4.5.1
Within greater plants several power feedback units may be coupled. Figure 4.5.1 shows an
example of a crane system with some possible combinations.
The operation of several inverters at one common DC-bus allows reducing the amount of
power feedback units. On the other hand several power feedback units may be coupled to
transmit more power. It's also possible to drive several motors at one inverter, as they react,
seen from the DC-bus (and that's, what the power feedback unit sees), like one big motor.
To proportion such a plant it is important to look at the worst case. The maximum feed-
back power of the power feedback unit has to be higher as or, at a minimum, equal to the
total amount of the braking power of the connected motors.
FC
FC FC
FC