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Peterson 6750B Electric Drive

Peterson 6750B Electric Drive. 6750 Electric Grinder Control Room. 6750 Electric Grinder Control Room. 6750B. 6750B Installation. 6750B Installation. Screen Installation. Variable Frequency Drive (VFD).

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Peterson 6750B Electric Drive

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  1. Peterson 6750BElectric Drive

  2. 6750 Electric Grinder Control Room

  3. 6750 Electric Grinder Control Room

  4. 6750B

  5. 6750B Installation

  6. 6750B Installation

  7. Screen Installation

  8. Variable Frequency Drive (VFD) • A VFD is a system for controlling the rotational speed of a alternating current (AC) electric motor by controlling frequency of the electrical power supplied to the motor.

  9. Variable Frequency Drive Advantages over soft start control • Variable speed on each motor will improve overall machine operation • Drive features will reduce mechanical stress • Drive safety features detect and protect the system from several types of power and motor faults. • Improved power factor and energy efficiency • Additional control possibilities

  10. Variable Speed Control: • With a soft-starter system, the motors are limited to running at base speed • With the variable speed control, it is possible to adjust the motor speeds within the speed range mandated by the motor manufacturer • The drives can be set to share the load between them

  11. Effect of Rotor Speed • High Speed operation – 10,000 fpm tip speed • Slower speed operation – 7,500 fpm tip speed

  12. Reduction of Mechanical Stress • The drive features allow programming acceleration ramps to soften the mechanic stresses involved in starting the machine • The drive ramps can be extended to a maximum of 3600 seconds. • Adjustable torque limit and current limit protect the motor from overload and minimize peak currents

  13. Safety Features • On the AC power side, the drive will detect to a missing power phase or low or high line conditions • On the motor side, the drive will protect itself from a short circuit, extreme over-current, ground fault and missing motor phase

  14. Peterson 6750BElectric Drive

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