VOLT-VAR MONITORING
Solutions to maximize energy use efficiency
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VOLT VAR MONITORING
Analyzing Volt-VAR to increase efficiency
Key features include:
    > Advanced substation data recording
    > Compatible with the full suite of Grid Apps™
    > Accuracy traceable to NIST standards
    > Connects to existing panel-mount Test Switches
DATASHEET
Currently, a significant amount (about 10 percent) of electric energy produced by power plants is lost during transmission and distribution to consumers. Much of this loss is due to phase differences between the voltage produced at power plants and the current drawn by consumers. In an ideal and perfectly efficient system, this voltage and current would be perfectly "in-phase" (time synchronized) with each other. Any "out-of-phase" conditions translates into system losses which today, on a per-year basis, equates to approximately $35 Billion of losses; providing huge cost saving opportunities for the utility companies.

Much of these losses can be avoided through a disciplined approach to monitoring and controlling the "volt-var" phases shifts (or angles), throughout grid networks, by employing a technique known as volt-var optimization (VVO).

VVO uses real-time information and online system modeling to provide optimized and coordinated control for unbalanced distribution networks with discrete controls. Electric distribution companies can achieve huge savings in the new frontier of energy-efficiency improvement by maximizing energy delivery efficiency and optimizing peak demand. VVO helps achieve these objectives by optimizing reactive resources and voltage control capabilities continuously throughout the year.

Such VVO regulating devices are typically installed in substations and on feeders across the grid. Substation transformers equipped with onload tap changers, can adjust the feeder voltage at the substation, depending on the loading condition of the feeders. Such transformers provide fine-tuning capability for voltage at specific points on the feeders. Reactive compensation devices (such as capacitor banks) are commonly used to reduce the reactive power flows throughout the distribution network. Utilizing such devices, in a comprehensive VVO program can have significant positive effects on VVO (resulting in significant energy/cost savings).

Fischer Block device sensors running ASAP VV™ capture instantaneous voltage, current, and frequency across all three phases at each installed location throughout the grid, providing the vital information necessary for VVO optimization and monitoring.

ASAP VV™ is just one application available on Fischer Block device sensors. Click here for a full listing of device related Grid Apps™ which provide a host of additional features and benefits.
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