Power Quality for Energy Efficiency Retrofits & Renewable Power

Energy Efficiency Retrofits & Power Quality:

Energy efficiency is a popular topic for office buildings as well as both commercial and industrial facilities. Due to the major interest in saving energy, electrical professionals are frequently involved in the design, specification and/or installation of equipment that will reduce energy consumption. Typical energy efficiency projects involve the selection of motors or the use of power electronics equipment or devices which are known to cause electrical disturbances such as harmonics and can also be susceptible to power quality disturbances. This course explains the power quality concerns for two of the most popular retrofits (VFDs and LED lamps). The course explains potential problems, methods to recognize problems after installation and provides recommendations to prevent these problems.

Renewable Energy & Power Quality:

Many buildings have a combination of power sources including utility, renewable energy inverters, standby generators and uninterruptible power supplies (UPS). This abbreviated seminar compares these power sources from a power quality perspective and offers advice for the proper sizing of these power sources, based upon the intended loads. It demonstrates the various levels of power quality achievable for renewable energy inverters based on various filter schemes and provides instruction about the effect that specific loads can have on renewable power sources.

Upon completion of this course, participants should have a meaningful understanding of the various types of power quality problems that can be anticipated when making typical energy efficiency improvements as well as methods to avoid power quality problems.

Participants will also gain an understanding of the power quality considerations for facilities that utilize renewable power sources.

Relevance:

Electrical professionals such as electricians, inspectors, electrical maintenance personnel and facility engineers will benefit from this course because it explains the impact that popular energy efficiency improvement may have on facility power quality as well as the performance and life expectancy of other electrical electronic equipment. It explains the technical differences between various types of equipment, proactive measures to take and remedies that can be applied.

Seminar Outline: Power Quality for Energy Efficiency Retrofits & Renewable Power

Your electrical energy bill

Demand charges

Consumption charges

Reducing electrical energy charges

Energy Efficiency Retrofits

Motor efficiency upgrades

Motor efficiency ratings

Impact of over-sized motors

Power factor ratings

Impact of unbalanced voltage

ECM and Integrated Motors

Best practices for motor efficiency

Motor starter to VFD conversions

Fan/Pump affinity laws

Impact of VFDs on power quality

Integrated Motor/VFD

ECM Motors

Saving electrical energy with fans

VFD power quality considerations

Harmonics & harmonic mitigation techniques

Impact of VFD output voltage on motor windings & bearings

Best practices for drives

LED Lamp Retrofits

Watts reduction

Lamp/driver power supplies

Lamp life expectancy

LED lamp failure modes

Power quality impact of LED lamps

Problems with triplen (3rd, 9th, 15th…) harmonics

Reducing 3rd harmonic currents

Best practices for LED lamp conversions

Renewable Energy Applications

PQ impact of R.E. inverters

Power system with PV Inverter

Utility vs Renewable power

DC Storage systems

PWM voltage

PQ vs. filters for grid-tied inverters

Supra-harmonics

Sizing a R.E. inverter

PQ impacts on other devices

Best practices for renewable energy inverters

EV Charging Systems

EV charging methods

Harmonics associated with EV chargers

Electromagnetic Interference

Effects of EV chargers on other devices

Best practices for EV chargers

Brought to you by Power Quality Specialists @ Allied Industrial Marketing, Inc.

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