Presentation/seminar on energy management in motors
Contents in ppt
1) Why energy management in motors?
Electric motors account for 60-70 percent of any industrial plant electricity consumption.Electric motors drive both core industrial processes, like presses or rolls, and auxiliary systems like compressed air generation, ventilation or water pumping.The largest proportion of motor electricity consumption is by mid‐size motors with output power of 0.75 kW to 375 kW.
2) Efficient operation of motors
A well‐designed motor system also must be operated properly. Efficient operation means:
3) losses in motors
A typical electromechanical system involves a motor, an electrical control system, a variable‐speed drive (VSD) and a mechanical load. The magnitude of energy losses depends on the application and the degree to which an advanced technical solution is used.Over time motors in older applications tend to migrate upwards to a higher horsepower rating than is needed. Or at other times the application’s power demand increases and the motor may be undersized for the new load. In either case, energy is wasted. The motor’s efficiency and power factor drops off when operated outside of its design load rating of 75% to 100% of the motors rated load.
4) Motor Management plan
Motor Management Plan is a set of ongoing policies and practices that help commercial and industrial facility managers proactively plan and effectively manage their motor population reducing equipment downtime and energy costs
a) Maintenance
b) Energy Efficient Motors
c) Rewinding
d) Proper size
e) Pf correction
6) What are its short falls
Lack of awareness among motor purchasers of the potential for energy and cost savings by using more efficient motors within energy‐efficient EMDS.Company organizational structures that manage their equipment procurement budget separately from operations and maintenance budgets.The fact that motors are often integrated into equipment produced by vendors before sale to the final end‐user
Click here to download ppt on energy management in motors
Contents in ppt
1) Why energy management in motors?
Electric motors account for 60-70 percent of any industrial plant electricity consumption.Electric motors drive both core industrial processes, like presses or rolls, and auxiliary systems like compressed air generation, ventilation or water pumping.The largest proportion of motor electricity consumption is by mid‐size motors with output power of 0.75 kW to 375 kW.
2) Efficient operation of motors
A well‐designed motor system also must be operated properly. Efficient operation means:
•No
operation without use, no idle time (factory automation has to give on/off);
•No
unnecessary fast start and brakes (well‐defined production cycles and
intervals)
•No
unnecessary long overloads (defined starting conditions, soft start,
VFD‐starting programmed, clutch); regular mechanical checks (oil quality for
wear, vibration for bad alignment) and maintenance (bearings, fan, dust, oil);
•Regular
electrical checks (electronic spikes, thermal image of motor) and maintenance
(overheated windings, unbalanced phases).
A typical electromechanical system involves a motor, an electrical control system, a variable‐speed drive (VSD) and a mechanical load. The magnitude of energy losses depends on the application and the degree to which an advanced technical solution is used.Over time motors in older applications tend to migrate upwards to a higher horsepower rating than is needed. Or at other times the application’s power demand increases and the motor may be undersized for the new load. In either case, energy is wasted. The motor’s efficiency and power factor drops off when operated outside of its design load rating of 75% to 100% of the motors rated load.
4) Motor Management plan
Motor Management Plan is a set of ongoing policies and practices that help commercial and industrial facility managers proactively plan and effectively manage their motor population reducing equipment downtime and energy costs
•It
is an essential part of a plant’s energy management strategy. Having a
motor management plan in place can help companies realize long-term motor
system energy savings and will ensure that motor failures are handled in a
quick and cost effective manner.
•It
deals with identification of critical and non critical motors what to do about
them if there is a failure or impending failure before it occurs. A good Motor
Management Plan also takes into consideration the economic and reliability
benefits of upgrading to premium efficient motors whenever possible.
5) Ways of motor managementa) Maintenance
b) Energy Efficient Motors
c) Rewinding
d) Proper size
e) Pf correction
6) What are its short falls
Lack of awareness among motor purchasers of the potential for energy and cost savings by using more efficient motors within energy‐efficient EMDS.Company organizational structures that manage their equipment procurement budget separately from operations and maintenance budgets.The fact that motors are often integrated into equipment produced by vendors before sale to the final end‐user
Click here to download ppt on energy management in motors
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