Posts Tagged ‘power factor’

3 Strategies to Reduce Peak Demand at Industrial Sites

January 5th, 2015 | Make a comment | Posted in Energy Efficiency - building
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New article by Martin M. who chose to highlight the 3 basic strategies for engineers and technicians at the industrial sites…You too can have your articles published by sending a mail to the team.

Introduction

3 Strategies to Reduce Peak Demand at Industrial Sites

The cost of investing in renewable energy sources is quite high. In addition, the costs of the main raw materials for electricity generation such as coal and oil are always rising. This means that the cost of electricity continues to increase despite the best of efforts.

Therefore, despite the long-term promises by the governments to reduce the cost of power, it is important that industries integrate short terms strategies to reduce peak power demand.

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Tariff and metering for low voltage systems

December 29th, 2014 | Make a comment | Posted in Electrical distribution
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Let Marvin tell you about reducing power losses and remember that you too can send us your articles by mail.

Different countries, regions, and power utility companies use different variables for billing and tariff structures. The primary objective of this article, thus, is not to focus on particular tariffs, rather, the basic elements that permeate across all the regions.

In short, I seek to highlight the two fundamental ways to reduce peak power demand and power losses in the generation and transmission.

Power Peak Demand Reduction

To get the most out of the generation and transmission company, the primary objective is to reduce power peak demand while seeking higher demand during the low load periods. Most power utility companies offer reduced tariffs at specified times of the day and year. Do note that the higher the peak demand, the higher the bill amount.

For large industries operating on LV and MV, there may be as many as four different rates used for calculation in the course of the day. The primary objective of the attending engineer is to get the maximum load, or shift the loads to maximize on the lowest rates.

Tariff and metering for low voltage systems
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Are Power Factor Correction Units Necessary For Residential Consumers? (Debate)

December 8th, 2014 | 4 Comments | Posted in Power quality
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Few weeks ago, we received this debate from Martin M., one of the visitor of the blog. So here is his interesting opinion on Power Factor Correction…

You too can send us a mail if you want to create a debate on the topic of your choice.

Are Power Factor Correction Units Necessary For Residential Consumers

You may have come across a nice, clear video on the importance of purchasing Power Factor Correction (PFC), also known as KVAR units for residential consumers. You may be luckier and actually met a salesperson, all verbose on how you can save a lot of money by installing a simple device between the power supply and the home appliances.

The selling point implicitly relies on people’s ignorance, as well as well laid-out misinformation and skewed facts. The main selling points for the scammers include the following

  • Home appliances such as refrigerators and washing machines are induction equipment and thus draw reactive power from the system.
  • Many industries use the PFC units to save energy, and so should you.
  • There are a number of positive ‘testimonials’ from satisfied clients.

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Using Capacitors in Electrical Circuits

July 29th, 2013 | 1 Comment | Posted in Electrical distribution
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Introduction

Use of Shunt capacitors in a High Tension (HT) or Low Tension (LT) installation has become a necessity and also mandated by most of the utilities worldwide. Let us understand some concepts behind the use of a Shunt Capacitor.

Need for Capacitor Installation

There is a growing need for energy conservation and all efforts are being made towards the same. On the other hand, the electrical loads in almost all categories of customers i.e. Industrial, Commercial, Residential, Agricultural are inductive loads in nature.

These inductive loads include: electrical equipments and devices like: Induction Motors, Fans, Industrial A.C. machines. With the advent of technology and greater level of automation in the last few decades, the electrical load mix is greatly becoming Inductive in nature.

The drawback of these inductive machines is that they draw a huge amount of Reactive Power (KVAr) from supply side, thus causing lowering of Power Factor (P.F.).

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Electric Generator Terminologies (back to basics)

March 27th, 2013 | 1 Comment | Posted in Electrical distribution
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Hi, here is an article written by a member of the Electrical Engineering community. He has already contributed to the community by writing a first article about the basics and types of electric generators.

Now today’s lecture is about the terminologies related to electric generators. It’s kind of a theoretical knowledge but an electrical engineer should know these terminologies if he wants to work on electric generators.

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