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PowerMonitor Products Application Guide
Control
After analyzing the real-time and historical data from PowerMonitor units, an energy management action plan can be
devised to start driving new activities to achieve the desired business goals.
Energy Cost Reduction
Demand management systems, for example, automatically project future demand to confirm the peak limit is not
exceeded. Load management systems can monitor the electrical consumption of selected equipment and turn them on
and off in an operator-selected sequence to minimize peak demand. Loads are prioritized to let you configure the order
in which loads are shed and restored. Load shifting maintains a more consistent level of energy use over time, which eases
demands on utilities and avoids subsequent charges.
Power Factor Correction can also help minimizecostly penalties from utility providers. Most plants have several highly
inductive loads, such as lightly loaded motors and illumination transformers and ballasts. These inductive loads can
severely effect power factor. Power factor correction capacitors are one means to combating this issue.
Operating Equipment Efficiency
Proper Utilization of equipment such as HVAC systems or air compressors can be a leading cause of wasted energy. Many
companies who have installed power monitors and analyzed their energy data have noticed that their HVAC systems and
lighting systems are running through the weekend or at night when no one is working. By simply installing an automated
system to control these systems and educating employees to turn off equipment that is not in use, can reduce energy
consumption.
Downtime Reduction through Power Quality Monitoring
Power quality events, generally referring to deviations from an ideal sinusoidal voltage waveform, can lead to significant
cost in the form of plant downtime and equipment replacement cost. Utility providers are only responsible for power
reliability. It is up to the consumer to manage the quality of their power. Voltage sags are one of the most common power
quality problems facing many industrial customers. Voltage sags are a reduction in AC voltage that can last from
0.5 cycles to 1 minute. System faults or heavy startup current due to switching on loads cause voltage sags and can result
in damaged equipment, data corruption, errors in industrial processing, and system halts. Monitoring these power
quality-related events and using the PowerMonitor 5000 power quality logs lets you pinpoint the occurrence of power
quality events and mitigate them by installing the necessary equipment.
For more information on power quality detection and mitigation methods, download the Power Quality Issues, Impacts,
and Mitigation for Industrial Customers white paper, POWER-WP002, or view the
Power Quality and Energy
Management Virtual
Brochure.
Rockwell Automation Publication 1400-AT001A-EN-P - September 2018
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