VFD and Soft Start Motor Controls
Leppert-Nutmeg works with customers throughout New England to identify the best possible motor drives and controls solution that will maximize the efficiency of a customer’s application. An electric motor that is matched with a properly designed motor control or drive will experience a longer motor life, less downtime and improved energy and cost savings.
These results are why our technicians work with you to find the right Soft Start or VFD for your electric motor setup. We offer both AC and DC Drives from Emerson Control Techniques, Baldor, WEG, Mistubishi, and others.
Variable Frequency Drives: Efficient drives, big savings
The complexity and variety of VFDs means it’s critical to pair the right VFD with the right electric motor application. Leppert-Nutmeg has over 45 years of experience finding the Drive-motor combinations that maximize efficiency and minimizing costs. Our analysis includes ensuring your motor is rated for VFD use; determining cable length; filter requirements, open or closed loop, inputs and outputs. We even help identify if your utility company offers rebates for VFD purchases and retrofits.
Pumps, fans and compressed air systems soak up 40% of electric consumption. The right drive system can reduce usage and energy savings quickly translate to dollars. Leppert-Nutmeg can help you save up to 60% in these types of applications and up to 30% on many of other applications with the right drive. An energy kWh meter is built into every Emerson Control Techniques drive we sell to help monitor energy usage and document the savings.
Leppert-Nutmeg works step-by-step to provide you with the best variable frequency drive for your electric motor needs. We will even check for stray currents after installation to ensure that the motor is properly protected and does not suffer premature bearing failure.
Soft Start Controls
Electric motors incur a tremendous amount of stress during start-up process. Soft start devices, as the name indicates, help ease this stress, thereby reducing the wear and tear. While soft starters may not be as common as VFDs, there are many instances when a soft starter may be the right choice for your motor.
Applications with pumps, conveyors and fans are prime candidates for soft start devices because of their characteristic stop-start nature. Soft starters minimize the start-up stress by slowly ramping up the voltage instead of blasting a static motor with a large energy jolt. Soft starter options:
- Two-phase units
- Three-phase units
- Open-loop designs
- Closed-loop designs
- Voltage and current variations
- Diagnostic sensors
- Safety and mounting variations