Rockwell-automation 6012DB PowerFlex Medium Voltage Variable Frequency Manual do Utilizador descarregar pdf (Página 22)

22 Rockwell Automation Publication 6000-UM001B-EN-P - October 2014

Chapter 2 Drive System Layout

Isolation Transformer Auxiliary Cooling Fans

Six fans are mounted directly underneath the isolation transformer to force air

directly through the windings - to ensure reliable cooling. A baffle structure

surrounds the periphery of the transformer structure to ensure the cooling air

does not bypass the interior of the transformer windings. These fans are powered

by a tertiary winding in the isolation transformer. Separate fan control power is

not required.

Top-mounted Main Cooling Fan(s)

The top mounted cooling fan(s) work with the auxiliary cooling fans to ensure

reliable cooling of the isolation transformer. They ensure the air is exhausted

from the cabinet by creating an induced draft.

Incoming Line Power Cable Connections

The incoming line cables connect to the line side terminals on the isolation

transformer. Incoming line cables can be brought in through the top or bottom of

the isolation transformer cabinet. Generous working space is provided, if stress

cones are required. See publication 6000-IN006_-EN-P

for additional details.

Outgoing Motor Cable Connections

The outgoing motor cables connect to a cable stand-off assembly on the cabinet

side sheet (Fixed-mounted Power Module configuration) or to the cable stand-

offs mounted on the Isolation Transformer (Drawout Power Module

configuration).

The outgoing motor cables connect to output phase of the power module array.

Outgoing motor cables can be brought in through the top or bottom of the

isolation transformer cabinet. Generous working space is provided. See

publication 6000-IN006_-EN-P

for additional details.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 137 138

Sem comentários

Rockwell-automation 6012DB PowerFlex Medium Voltage Variable Frequency Manual do Utilizador Página 22