Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 15)

Chapter
1
7000 “C” Frame - Marine 7000L-UM302B-EN-P – June 2013
Overview of Drive
Introduction
The PowerFlex® 7000 represents the third generation of medium
voltage drives at Rockwell Automation. The PowerFlex 7000
medium voltage AC drive is part of the PowerFlex family of AC
drive products. The Allen-Bradley PowerFlex® family of Drives
incorporates leading-edge technology, embedded communications,
and significant commonality across multiple platforms, networks,
operator interface programming and hardware. Designed for end
users, solution providers and OEMs, PowerFlex 7000 liquid-cooled
drives meet applications ranging from 3,000 to 9,000 horsepower
(2240-6715 kW).
The PowerFlex 7000L is a general purpose stand alone medium
voltage drive that controls speed, torque, direction, starting, and
stopping of standard asynchronous or synchronous AC motors. It is
intended for use on a host of standard and specialty applications such
as fans, pumps, compressors, mixers, conveyors, kilns, fan-pumps,
and test stands. Primary industries for these applications include
petrochemical, cement, mining and metals, forest products, power
generation, and water / waste water.
The PowerFlex 7000L is a global product that adheres to the most
common standards from NEC, IEC, NEMA, UL, and CSA. It is
available with the world‟s most common supply voltages at medium
voltage, from 2400-6600 volts.

The design focus is on high reliability, ease of use, and lower total
cost of ownership.
 For 2400V and 3300V designs, contact factory.
Liquid Cooling
The PowerFlex 7000L “C” Frame liquid-cooled drive utilizes a
closed loop system to cool the converter main power components
and the integral DC link inductor.
The Main Benefits of Liquid Cooling Include:
 Smaller drive dimension compared to air-cooled drives of similar
rating
 Higher power rating capability
 Quiet operation in control room
 Low loss rejection to the control room reduces air conditioner
loading
 Majority of losses rejected outside the control room via a liquid-
to-air or liquid-to-liquid type heat exchanger