Motor & Driver Applications

Electric motors, taken together, make up the single largest end use of electricity in many developed countries. In many developed countries, in industrial applications, electric motors account for roughly 60% of electricity consumption; in the process industries, electric motors can account for more than 70% of electricity use.

The cost of running a motor can be as much as ten times to the purchasing cost of a motor. Therefore operation of motors represents a huge potential for energy savings.

The electric motor does not function in isolation: the motor driven unit (MDU) consists of the electric motor, sometimes controlling equipment such as a soft starter or variable speed drive (VSD), supporting mechanical equipment (gear, belt, clutch, brake…) and the application it is driving (pump, fan, compressor). The motor system also includes all other components that suffer from energy losses while executing its function (water or air ducts, throttles, valves). Optimizing this entire motor system is the best way to minimize energy use and CO2 emissions.

  • Electric motors and the applications they drive (pumps, fans and compressors) are the single largest user of electricity, consuming > 2.5 times as much as lighting
  • By 2040, the annual global electricity savings for motors and motor systems could reach up to 3,050 TWh per year
  • New and existing technologies offer the potential to reduce the energy demand of motor systems across the global economy by 20% to 30% with short payback periods

Energy Savers Motor & Drive ECM Solutions

Variable Frequency Drives

Today an increasing amount of fixed rate/rpm drives and motors are replaced by optimized Variable Frequency Drives / Variable Speed Drives (VFD/VSD).

A variable frequency drive is a motor controller that is used to change the speed of an AC motor by changing the frequency of the supply voltage. VFDs allow a motor to be operated at almost any speed. The speed can be changed gradually, allowing the drive to control motor acceleration and deceleration. Drives may also feature many motor control functions, motor torque control and motor braking.

These VFD units can realize very significant cost and energy savings, when installed and configured correctly:

  • Reduce Energy Consumption
  • Increase production through tighter process control
  • Extend equipment life
  • Reduce maintenance demand

40-60% of all motor systems would benefit from the proper use of Variable Frequency Drives (VFD) to improve the energy efficiency of industrial motor systems.

Energy Savers provide an extensive portfolio of VFDs ranging from ABB, Danfoss and Mitisubishi. Size 1hp -500hp

Troubleshooting & Correct Calibration Variable Frequency Drives

However, we often find sub-optimal installations:

  • No parametrisation for optimal efficiency under UAE conditions
  • No integrated Harmonics Filtering (effective filtering to avoid VFD-generated and harmonics compensation)
  • Here is how we can help:
    • VFD Performance Audit and Power Quality Analysis
    • VFD Re-Parametrisation / Performance Optimisation
    • VFD-specific Harmonics and PFC Upgrade/Retrofit

Our VFD Optimization engagements realize regularly efficiency improvements of +20% and net ROI Break-even within less than 6 months

Preventative Maintenance

Preventive maintenance is defined as regularly scheduled inspections, tests, servicing, replacements, repairs and other tasks intended to help reduce the impact and frequency of equipment failures. This includes scheduled preventive maintenance, predictive maintenance and inspection activities.

The purpose of preventive maintenance is to try to maintain the equipment in optimum working condition and to help prevent any unplanned downtime due to breakdowns. Because components start to wear over time, replacing items prior to failure can cost you far less than the potential consequences of failure while in service. Some people see maintenance as an expense and it can often be one of the first departments to suffer from cuts during difficult times, however, this is very much false. Preventing problems from occurring will almost always be far less than the costs you will incur due to actual failures

Benefits of Electrical System Preventative Maintenance:-

  • Avoided disruption & downtime
  • Improved lifespan equipment
  • Lower safety risk to operator
  • Operation costs
  • Forecast expected component replacement. Budgetary analysis

Our qualified field service engineers provide comprehensive maintenance and testing services with a scope of work that includes:

  • Equipment inspection
    • Protective device testing
    • Cleaning and lubrication
    • Adjustments
    • Electrical testing, including insulation, current path, system function

and other services.

  • Electrical Distribution system
    • MDB panels Air Circuit breakers, MCC isolators and Distribution board.
    • Bus Bars & Cabling
    • Breakers
    • Thermography
    • Safety Testing Bs7671 Standards

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