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VFD-A800/W800 Variable Frequency Drive for Face Conveyor Systems

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VFD-A800/W800 Variable Frequency Drive for Face Conveyor Systems

The Cat VFD-A800/W800 provides efficiency and maximized profitability for the motor control of armored face conveyors in underground longwall applications. The variable frequency drive consists of an air-cooled VFD unit, a liquid-cooled VFD unit, and an external cooling station. The Cat medium voltage drive delivers enhanced motor control and increased energy efficiency on motor applications with a rated power of up to 800 kW (1,072 hp).

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Rated Power1072HP

Input Voltage3300V ± 10%

Maximum Operational Torque210%

ConverterCurrent Source Inverter (CSI)

Slew Rate20%-80% < 20 m/sec

Motor TypeAC motor

Output Frequency0-60 Hz

Input Frequency50/60 Hz ± 5%

Output Voltage0-3300V

Operation4Q

Power Factor (cos phi)> 97.5% (PWM)

SetupVFD separate from motor (cable distance up to 4 km/2.5 miles)

Length146in

Weight - VFD-A800 - Air Cooled14771lb

Width49in

Height51in

Weight - VFD-W800 - Water Cooled17196lb

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