Canadian Electrical Industry News Week

 

 

 

 

Power Factor Correction June 23 2016

Joy Silber
Amid all the talk about how to reduce CO2 emissions and limit climate change, renewable energy sources such as wind and solar often take centre stage. But there’s another technology poised to deliver energy reductions of 10% or more that gets far less attention: power factor correction (PFC).
If you’re not familiar with PFC, you are far from alone. To date, it’s been a largely overlooked method of reducing energy consumption, costs and CO2emissions, and achieving sustainability. But PFC is actually far more effective than many “green” alternatives because it effectively enables companies to get more power out of the same amount of utility electricity.


Understanding power factor
I won’t kid you: PFC is a bit complicated to explain and understand, making a full discussion of it beyond the scope of this post. You can learn all about it from this free Schneider Electric paper titled Energy efficiency improvement through optimization of the power factor correction.
But the basic concept is it takes more energy to power a given load than the actual power that the load consumes. That’s because some of the energy is lost in translation, so to speak. Power factor is used to determine just how much more energy will be required to power the load. This amount is measured by calculating a ratio that shows how efficient any given machine is. A motor with a power factor of .90, for example, is 90% efficient. To determine how much energy you’ll need in kVA to power that machine, you perform an equation: 100 (for a 100kW motor) ÷ 0.90 = 111kVA. So you’ll need 111kVA of utility power to run that 100kW motor.

Saving energy with power factor correction
Obviously, the lower your power factor of a given piece of equipment, the less efficient it’s going to run. And that inefficiency can cost you more than just a higher utility bill because in some areas, you’ll get penalized for consuming more power than your contract allows, taking into account your power factor.
The key to ensuring that doesn’t happen is to use a capacitor bank or energy compensator. These systems perform PFC to help reduce the amount of power an AC device has to consume to generate its rated amount of power. Some systems, such as Schneider Electric’s VarSet low-voltage capacitor banks, automatically correct power factor. This results in a power factor close to 1, meaning virtually no power is wasted.


Using PFC systems can deliver a number of benefits, including:
• significant savings on electricity bills, with ROI typically within two years (actual savings vary depending on local utility penalties)
• improved energy efficiency
• attained sustainability goals
• reduced energy use waste
• increased available power at your facility
• reduced carbon footprint
• Improved equipment reliability and lifespan by filtering “dirty power”


Sounds an awful lot like many of the same benefits that solar and wind deliver, doesn’t it? The savings can indeed be impressive, and they’re relatively simple to achieve. To learn more about power factor correction in your facility, email:powersolutions@schneider-electric.com


Joy Silber is the Strategic Marketing & Sales Optimization Manager of Power Solutions at Schneider Electric. With experience across multiple industries: Food and Beverage, Mechanical, Agriculture and Power Transmission, Joy has held previous roles in National Sales Development, Market Segment Management, Marketing Services Management and Business Development. She has a B.S. from North Carolina State University and is an active volunteer in her community. This article was first published as a blog

 


 Salex Expands to Southwestern Ontario                                                                   

LDS Salex 12 175

Salex continues to support the Southwestern Ontario market with representation of key market leaders in lighting and controls, including its partnership with Axis Lighting, Beghelli Canada and OSRAM.

Axis Lighting is an innovative, forward-thinking manufacturer delivering high-performance LED luminaires for general, ambient and task lighting in office, commercial and institutional spaces. One of their leading-edge developments includes Stencil. Stencil brings together lighting segments and connectors called Hubs, the building blocks for creating forms and patterns of all sizes. 

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The Jaibot executes its tasks based on building information modeling (BIM) data. The robot is a completely cordless and easy-to-use system that doesn’t require expert skills. It locates itself accurately indoors, drills the holes dust-controlled and finally marks them according to the trade. 

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EIN AEA virtual 400Mark your calendars for Nov. 24-25 and get ready for a virtual trade show and amazing technical presentations. AEA, the exhibitors and presenters are so excited to present this event to the entire province of Alberta.

Attendees will have easy access to virtual booths with an opportunity to have their questions answered by qualified people, and win some prizes throughout the days at both the trade show Virtual Floor and by attending the seminars.

 

Go HERE to register and for the full event details

 

 


 



Lighting ControlsBy Jeremy Day

Building a control system for a modern lighting installation can seem like an impossibly complex task. To simplify it, a systematic approach to understanding the needs of the design, facility, and user can be employed. In this white paper, we aim to define the questions one must answer to construct an appropriate control system.

First, and perhaps counterintuitively, one must start with the control narrative. A lighting programming and control narrative is a document that is essential to coordinate the design/construction process with a fully realized final architectural product. 

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Terry BeckerBy Terry Becker

Changes in the CSA Z462 Workplace electrical safety standard are slowing down. Good news! The 2021 edition will see significant reorganization of content in Clause 4.1, changes to existing annexes, some new annexes and a significant change to the arc flash PPE category method of determining “additional protective measures” for a work task’s arc flash risk assessment are included in the 2021 edition.

CSA Z462 2021 edition will not be 100% technically harmonized with the 2021 edition of NFPA 70E...


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Shat-R-Shield Ironclad VR ProShat-R-Shield's Correctional Cell Fixture is designed to withstand extreme abuse by using materials that are virtually indestructible. Built with 1/2" thick 304 Stainless Steel and a cast .400" thick diffused lens, this light fixture is built to withstand hard/repetitive impacts and its tight design offers no point of entry.

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Rutul Bhavsar 1 400By Blake Marchand

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Sustainability at Mohawk College. Rutul’s interests lie in the more progressive areas of the industry, automation, control, and energy efficient technologies. It is no doubt a positive sign for the industry to have talented individuals such as Rutul who are passionate about contributing to a more sustainable future. 

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