Energy and Power
How capacitors improve the power factor and how to calculate them?
It’s quite simple. By installing capacitors or capacitor banks. Improving the power factor of an electrical installation consists of giving it the means to “produce” a certain proportion of the reactive energy it consumes itself. The capacitor is most frequently… Read more
Nov 16, 2016 | By Edvard Csanyi
Energy and Power
4 steps to diagnose a potential harmonics related problem
If a plant engineer suspects that he might have a harmonics related problem, the following steps can easily be performed as an initial investigation into potential problems: Look for symptoms of harmonics as listed in Table 1 below. If one… Read more
Oct 05, 2016 | By Edvard Csanyi
Energy Efficiency
Three applications where variable speed drive really rocks!
Many industrial sectors have discovered the benefits of using variable speed drive (VSD) control in a wide variety of applications. Businesses in the commercial and public sectors can also utilise the benefits of VSDs, largely in applications involving pumps and… Read more
Aug 03, 2016 | By Edvard Csanyi
Datacenters
Electrical Design Project Of Sun’s Datacenter In Santa Clara, California
This technical article provides a top-to-bottom overview of Sun Microsystems’s Santa Clara, California datacenter from electrical design aspect. Sun’s electrical design tour of Santa Clara datacenter is done through a series of single line diagrams. These diagrams illustrate the various components… Read more
Jul 01, 2016 | By Edvard Csanyi
Energy Efficiency
Tips For Successful Energy Efficiency Of Centrifugal Water Chillers
Centrifugal water chillers comprise a significant portion of industrial and large commercial electrical load. These machines are efficient, typically producing a cooling effect two-to-three times greater than the required energy input. Centrifugal water systems were the focus of cholorfluorocarbon (CFC)… Read more
May 30, 2016 | By Edvard Csanyi
Energy Efficiency
How To Reduce Transformer Losses At Design Stage
Design changes to reduce transformer losses, just as in a motor, always involve trade offs. For example, consider varying the cross-sectional area of the transformer core. An increase tends to lower no-load loss while raising the winding loss. An increase… Read more
Apr 29, 2016 | By Edvard Csanyi
Energy Efficiency
Here is why you MUST use variable speed drives in pumping applications
Pumping applications represent a significant opportunity for applying variable speed drives (VSDs) in new, as well as retrofit installations. The majority of pumping applications need to be controlled. It is unlikely that a pump will run continuously at a maximum… Read more
Mar 26, 2016 | By Edvard Csanyi
Electric Motor
3 reasons for increased efficiency loss in rewound motors
Approximately 300,000 motors are rewound in the UK every year, with an average rating of about 12 kW, so the efficiency of rewound motors is extremely important. The loss in efficiency on rewinding depends on the techniques, processes and skill… Read more
Mar 07, 2016 | By Edvard Csanyi
Energy and Power
Why modern buildings MUST have energy metering and monitoring system
The first step to greater efficiency through energy metering and monitoring is to set objectives for the future system. Ideally, users of the system are involved in this process, and are given an opportunity to provide input on the main… Read more
Feb 19, 2016 | By Edvard Csanyi
Energy Efficiency
8 actions to improve energy efficiency in heating systems
In many buildings, HVAC is the first or second item in terms of energy costs. This technical article deals with optimisation tips and energy efficiency savings in heating systems of a building. Heating systems have always been used when the… Read more
Feb 05, 2016 | By Edvard Csanyi
Energy and Power
Wiring practices to provide future load growth in buildings
Electrical wiring is often installed without consideration for how the use of the space may change over time, particularly in residential building. This article recommends wiring practices that meet the NEC and provide for future flexibility and load growth in residential… Read more
Jan 18, 2016 | By Edvard Csanyi
Energy and Power
How to identify these four parameters and lower facility’s electricity bill
The world is more energy conscious these days. But unlike you, most of the world doesn’t pay electricity bill that rivals the cost of a four bedroom home. You understand the need to know where energy is being expended in… Read more
Jan 13, 2016 | By Edvard Csanyi
Electric Motor
Five factors that mess up motor efficiency and how to improve it
It must be emphasised that the standard electric motor is already a very efficient device with efficiencies above 80% over most of the working range, rising to over 90% at full load. However, because of the high energy consumption, and the… Read more
Dec 23, 2015 | By Edvard Csanyi
Energy Efficiency
7 key steps in lighting design process
To achieve the best overall outcome in a lighting installation, it is important to avoid the tendency of rushing straight into luminaire selection before determining more broadly what is required from the system. The use of a structured design process… Read more
Aug 03, 2015 | By Edvard Csanyi
Energy Efficiency
7 energy-efficiency improvement opportunities in lighting system
There are a lot of opportunities to optimise lighting system in (almost) any industrial facility. Seven practical energy-efficiency opportunities to reduce energy use cost-effectively are given below: Lighting controls Replace T-12 tubes by T-8 tubes Replace mercury lights with metal halide or… Read more
Jul 29, 2015 | By Edvard Csanyi
