Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 16)

1-2 Overview of Drive
7000L-UM302B-EN-P – June 2013 7000 “C” Frame - Marine
The Main Benefits of the 7000L “C” Frame Liquid-cooled Drive
Include:
 Completely integrated MV drive package reduces customer
installation costs and start-up time.
 Higher power rating capability (up to 9000 hp / 6715 kW)
 18 Pulse and AFE rectifiers for low harmonic solutions that meet
IEEE 519-1992 Harmonic Guidelines
 Motor friendly current and voltage output waveforms for use
with standard new and existing motors
– Inverter duty motors not required
– Motor temperature derating not required
– No additional dv/dt or peak voltage stress to motor insulation
system
– Tested up to 15 kilometers (9.3 miles) cable distance
between drive and motor
 Spacious cable termination cabinet for ease of use by installation
contractor
 Cable termination stabs accommodate:
– 3 cables in / 3 cables out (Direct-to-Drive or AFE rectifier)
– 9 cables in / 3 cables out (18 pulse)
–
Top or bottom entry and exit of line and load cables
 90% of drive losses are rejected outside the control room
 Integral liquid-cooled DC link inductor reduces overall
dimension and eliminates external interwiring.
 Integral pumping panel includes:
– Line supply c/w disconnect and fusing
– Closed loop coolant system
– Iron and chloride free liquid ethyl-glycol / deionized water
mixture
– Low conductivity coolant (1-2 micro-Siemens / cm 3
)
– Isolated from medium voltage
– Fully serviceable low voltage compartment isolated from
medium voltage power
– Monitors coolant temperature, flow, level, conductivity, and
pressure
– Redundant pumping system (optional)
– Automatic pump change over on pump failure
– 1/2 turn valves with quick disconnect couplers for pump
replacement when drive is operating
– Full drip tray to contain any spilled coolant
– Drain and fill pump for convenient filling
– Industrial schedule 80 CPVC piping for pump panel, headers
and manifolds (no condensation possibility)
– Control hardware for cycling of main / redundant cooling
pumps and heat exchanger fans