One Alpha Electrical Services Sdn Bhd added a news
Nov 29, 2018 at 12:49 pm —
Core Concepts of Energy Management

Core Concepts of Energy Management

Energy management in any business scenario is all about increasing or improving energy efficiency. This is, in turn, a partially a technical pursuit but one with a marked grounding in science. Equally, although there are some aspects that are undeniably highly specialized, the essential science should be familiar to most readers (even if it is only vaguely) from their school days. Thus, when regulations specify that an energy manager is suitably qualified, this most likely means that a simple grasp of physics and chemistry would be expected. This article looks at some of the fundamental scientific concepts needed for the job, and the basic specific topics that may be helpful.   Energy and power   Energy can be defined as ‘electricity, fuel, steam, heat, compressed air and other like media’. Your physics teacher probably defined it more properly as ‘capacity to do work’ but our real-world definition is better suited to our purposes. When we buy or use the energy it may be billed or reported in a variety of units of measurement, but all have their equivalents in kilowatt hours (kWh) which is how most practitioners commonly express energy consumption.   ‘Power’ has a quite specific meaning: it is the rate at which energy is delivered, commonly expressed in watts (W) or kilowatts (kW), although horsepower (HP) will also come to mind in some contexts. Because both are measures of power, there is a conversion factor between the two: 1 HP is equal to 0.746 kW. The energy used by a piece of equipment running at a fixed power for a certain time is the time multiplied by the power. A 3 kW heater running for two hours will use 3 × 2 = 6 kWh. A 55 HP diesel engine running flat out for two hours will deliver 55 × 0.746 × 2 = 82.06 kWh and so on.    Power factor   In an electrical circuit, power is calculated by multiplying voltage and current together. In the case of mains power, where the current alternates, this relationship holds true at any given instant, so the instantaneous power will vary as the voltage and current continuously vary through the cycle. However, in order to deliver the maximum useful power, the current and voltage must be exactly in step. If they are not – for example, if the load characteristics make the current waveform lag slightly behind the voltage waveform – then throughout the cycle, either the voltage will coincide with a current that is less than it would have been or the current coincides with a voltage that is lower than it would have been had they been in step. Indeed, there will be four occasions in each cycle when the instantaneous power is zero (two when the current is zero, and two when the voltage is zero). The result: less power will be developed for a given current. The power factor is the ratio between delivered useful power and what it would have been with perfect synchronization of current and voltage. Poor power factor means that a higher-than-necessary current must be drawn in order to deliver the required useful power. This increases the load on the supply cables and switchgear, increases line losses and (depending on the tariff) can impose higher supply-capacity and maximum-demand charges.   Efficiency   This is another word that has quite a narrow meaning in the context of energy management, where it refers to the ratio between useful energy output and energy input. Examples might be the useful heat output from a boiler divided by the amount of fuel put in; or the work done by a car engine relative to diesel consumed. Take the earlier example of the engine which delivered 82.06 kWh over two hours. If it used 25 litres of fuel in the process, how efficient was it? From appropriate conversion tables, we see that 25 litres of diesel contain 25 × 10.6 = 265 kWh. So the efficiency of the engine was 82.06 / 265 = 30.9 %.   In common parlance ‘efficiency’ is often used interchangeably with ‘efficacy’ or ‘effectiveness’. If the occupants of a building tell you its heating system is efficient, they usually mean that it keeps them warm, not that the boilers are well-tuned and properly controlled to minimize standing losses. Beware also when promoting ‘efficiency savings’ as this term has connotations of downsizing and redundancies.   Energy balance    Most people talk about ‘consuming’ energy (be it in the form of gas, oil, electricity, heat, compressed air or steam) but purists would argue that we don’t consume energy, we merely convert it from one form to another. Nobody seriously argues that we stop using the term ‘consume’ but the point about conversion is important in a way. In the engine example, we used 265 kWh of chemical energy in the diesel fuel to generate about 82 kWh of useful mechanical work. But as energy cannot be destroyed, where did the missing 183 kWh go? It came out as heat in the exhaust and cooling system. There is an overall balance between what goes in and what comes out.    Heat and temperature   Heat is one key manifestation of energy. A flow of heat can be expressed in energy units (such as kWh). You can meter, buy, or use a quantity of it. The engine in the earlier example produced it by converting chemical fuel energy. Ten tonnes of steel at 300 °C contains twice as much heat as five tonnes at 300 °C. Temperature, by contrast, is just a measure of how hot something is. You cannot buy or use temperature; it is not a form of energy. You can see how different heat and temperature are if you think about taking some ice from the freezer and adding heat to it.    At first, starting from a temperature of −15 °C (for example), its temperature rises as it absorbs the heat. When it reaches melting point, it continues to absorb heat as it turns to water. During this process, its temperature stays constant at 0 °C but its heat content continues increasing (if you completely stop adding heat, the ice water mix does not change).    Once it is all melted, the liquid water continues to absorb heat and its temperature starts climbing again until it reaches the boiling point, whereupon the temperature again stops rising while the water evaporates. Only when there is no more liquid left can the water, now as vapour, start to increase in temperature (and become what is called ‘superheated’). With a few odd exceptions that don’t go through a liquid phase, as you add heat to any solid its temperature rises unevenly, remaining on a plateau while it is melting or vaporizing before following the same trajectory back down as it first condenses to a liquid and then solidifies when heat is removed from it.    Common physical manifestations of this are:   a) Your drink with ice in it starts to warm abruptly once all the ice has melted or; b) Boiling a pan of water rapidly does not raise its temperature.   One tricky point you will need to know. When engineers and scientists talk about temperature differences they use a unit of measurement called a kelvin represented by a capital K. One kelvin is numerically equal to a one-degree difference between two temperatures in Celsius (centigrade degree in the old usage); when it is 19 °C indoors and 5 °C outside, the temperature difference is 14 K.   So, there you have it. Many of the key elements or concepts, things that an energy manager needs to think about and be aware of, summarised as in the proverbial nutshell. There will be more like this on our brand new energy manager site that is to be launched (and will be linked to from here) in the very near future. Stay tuned! read more
One Alpha Electrical Services Sdn Bhd added new video in Energy Management
Nov 9, 2018 at 02:49 pm —

Energy Wastage Gone Crazy!

At the One Alpha Group, we can't say with any definite certainty that we 101% know everything there is to know about energy efficiency and energy management, although we'd be willing to hazard a humbly non-boastful guess that our ideas might be better than most. This, however, is an outstanding example of how not to manage energy efficiently. Will you tell them or shall I?
One Alpha Electrical Services Sdn Bhd added a news
Nov 9, 2018 at 02:30 pm —
Why Energy Management Pays Huge Dividends ...

Why Energy Management Pays Huge Dividends ...

Efficient Energy Management Services Explained ... On the most profound level imaginable, effective energy management is no longer an optional extra or an element of business efficiency that you can afford to 'get around to' when you have a moment. Sadly, effective energy management - just like any other single element of running your business to the best of your ability (and therefore maximum profitability) is not going to wait until you get around to it. On the contrary, a single second of unnecessary delay has the potential to kill your business as completely as if someone broke in and stole every penny you have ever had. It can stop you dead in the water so effectively that you never, ever quite get moving again, stranded on the rocks of business wastage for perpetuity. Don't believe me? Think I'm 'over-the-top' exaggerating? Well, close your eyes and try to imagine this scenario ... You know that the wiring in your factory or building is overloaded and out-of-date, pensionable, almost medieval, but you are also responsible for 'economising' whenever and however you can. So, you chance to leave things as they are, even though you know that doing so constitutes an increased risk in many more ways than one. You choose to keep the lines moving and the lights burning, even though you know better than anyone that doing so becomes an ever more imminent hazard. Guess what? A clue - no-one's luck lasts forever! One day, it will fail, and the lights will go out and the lines will stop and then where are you? Note. You. You took the decision with the best intentions but now, my friend, you are an outcast, public enemy #1. You are just about to reap the results of your inaction - most likely, by carrying the can on your own. First, it was your decision - yeah, okay, taken for all the most laudable reasons, but your decision nevertheless - so you ultimately shoulder the blame. But, secondly and much more critically, everything grinds to a halt, for who knows how long? So, what happens now? Let's imagine a few different scenarios here, because - trust me - none end up with you as a hero (ironically, as that was exactly what you thought you were being)! Say you are in a perishable goods business; well, your stuff has just started to perish. Thousands of dollars of destroyed stock that can literally be washed down the toilet pan tomorrow. Maybe you are in a competitive, cut-throat business like a car or furniture or carpet or any other kind of manufacture? Well, you just threw open a window through which your competitors can race away into the blurriest distance as they keep going while you cannot, and you have absolutely no chance of closing the gap anytime soon. Need I go on pointing out the painfully obvious? The truth is, no matter what your business is, you will lose money if you suffer energy management 'glitches'. Thus, managing your energy usage, effectiveness and efficiency is not an optional extra in such a cut-throat, dog-eat-dog modern business world. It is not a 'get around to it when I have a moment' decision that you can ignore with any realistic expectation of peace of mind. Instead, it is something that must be dealt with immediately! Effective energy management is a critical element of each and every modern business and will become increasingly fundamental for however you make your money in the coming years and decades. Now more than ever before, energy management has ceased to be a passive, 'sit on the sidelines and wait' game! Instead, it is about being proactive, taking action in anticipation of problems arising, moving early and decisively to make sure the worst never happens with you potentially sitting atop a flame of blame! One Alpha staff are vastly experienced energy managers, armed with the latest electronic diagnostic technology and fully qualified to use it! Furthermore, we are officially recognised qualified and approved energy managers, certified by Suruhanjaya Tenaga (Malaysian Government Energy Commission) to provide registered electrical management services within the terms of the Efficient Management of Electrical Energy Regulations (2008). Energy efficiency, saving you money whilst preserving your safety will always be the ultimate goal of our efforts to reduce the amount of energy required to power your business, providing a clear benefit in both financial and ecological terms. Our Certified Energy Efficiency Consultants are primed, waiting and keen to help your business achieve these aims. All it takes is just one telephone call, SMS or carrier pigeon! In addition, we make it our goal to provide a wide range of energy saving proposals for our Clients to consider maximizing Energy Efficiency: Energy efficiency audits, analysis and solutions - TNB bill analysis (we will study your last 12 months TNB Bill, and give you a detailed report, with graphs, and our recommendations on how to reduce your monthly electricity bill). Training for your technicians on electrical safety & energy efficiency and more… For testimonial letters regarding past energy management projects from satisfied clients, please visit our testimonials page at https://www.onealphagroup.com/index.php?ws=pages&pages_id=10533. To know more and/or to arrange a no-commitment initial consultation, call us on +603-7610 4543, SMS or email us. We'll spare no energy in responding as quickly as we possibly can ... read more
One Alpha Electrical Services Sdn Bhd added a news
Nov 6, 2018 at 10:23 am —
M&E Engineering For Business Expansion

M&E Engineering For Business Expansion

The One Alpha Group has several individual companies under the same 'banner', all with a specific focus on an element of the electrical engineering world. In this article, I'll consider and highlight the purposes and methods of One Alpha M&E, and in particular, how the services of such a qualified, professional M&E engineering practice can help to boost your business. An M&E engineer is an expert in mechanical and electrical engineering. In some parts of the world, M&E engineers have 'morphed" into an MEP variant, a title that means that they officially include plumbing in the work they do. The terminology has not spread to South East Asia yet, although water management is an important element of the work One Alpha M&E regularly tackle. Different title, broadly the same job description. So, what is this job? What does a professional M&E engineering practice do, and what is their prime focus? M&E engineers are experts in designing systems that make the interior of buildings as suitable as possible for the occupation of human beings. They design the systems, then arrange and supervise the installation to ensure that it fully satisfies the primary requirements of the particular situation. After the initial system installation, regular servicing and maintenance care are needed and these are also services that One Alpha M&E provide. The engineers from a qualified M&E engineering practice like ours have to wear many 'different hats' sometime, but the majority of the work can be distilled into just two scenarios: When a new construction project is on the drawing board, the M&E experts must make sure that all energy-related building systems are designed and installed correctly; With existing buildings, the job of the M&E specialist is to identify weak spots and faults, subsequently suggesting steps that can be taken to remedy the situation to improve performance. So, how can this help boost your business? To begin with, engaging the services of an M&E engineering practice such as One Alpha M&E should never be considered to be a cost. Instead, view it as an investment, as a relatively modest outlay for getting the job done properly in the first place or for upgrading your present business premises to the latest specifications that will be returned to you many times over the months and years. In both cases, as an example, working with an M&E engineer allows you to enjoy significantly lower operating costs alongside improved productivity prompted by enhanced working conditions. Alongside this, there are psychological and workforce satisfaction benefits too, as your employees can clearly recognise that you are making their workplace as attractive and amenable as possible. Depending on the nature of your business, energy efficiency might be an attractive 'sales point' too. This would be particularly true if, for example, you are building or renovating business premises for rental, as these are definitely features that a modern, forward-thinking business tenant would welcome and perhaps be willing to pay more for. Engaging an M&E specialist as part of a project team tasked with constructing a high-performance, energy-efficient building from scratch is the most cost-effective and efficient strategy, and provide significant benefits throughout the whole lifecycle of the building. This also ensures appropriate building code compliance, which is very important as a building that needs much expensive modification to comply is instantly significantly less cost-effective. As for older buildings, they suffer over the years and gradually their quality and performance deteriorate, ultimately guaranteeing less efficiency and higher costs. The quality and durability of all the equipment in that building gradually decreases and as that happens, the price of maintenance and/or replacement rises accordingly. A visit from a qualified M&E Engineer can help reduce or remove the problem entirely as they help identify the trouble and recommend solutions. Furthermore, as technology becomes ever more dependable, efficient and cost-effective to harness, older electronic and electrical equipment and fittings may well have had their day, or you may be spending way to much to keep the equipment you use going. Once again, a visit from one of our professional M&E Engineers helps you to isolate, identify and solve the problem. So, new building project or old building headache, engaging professional M&E Engineers should be one of your very first priorities if you want maximum business efficiency and cost-effectiveness from this point on. To find out more about what One Alpha M&E can contribute to your project or predicament, why not call us today on +60.3.7610.4543. One last thing. Of course, anyone can claim expertise nowadays. So, for actual proof of our M&E wizardry, take a look at this presentation on the efficiency of water-cooling systems recently prepared for a client by our chief M&E Engineeer, Ir. Andy Goh.           read more
One Alpha Electrical Services Sdn Bhd added new file in One Alpha M&E
Nov 6, 2018 at 09:47 am —
One Alpha Electrical Services Sdn Bhd added new file in Electrical Load
Nov 6, 2018 at 09:33 am —
One Alpha Electrical Services Sdn Bhd added a news
Nov 6, 2018 at 09:28 am —
Protective Relay Calibration ¨C The ¡®What¡¯ And ¡®Why¡¯...

Protective Relay Calibration ¨C The ¡®What¡¯ And ¡®Why¡¯...

If you operate your business from a specific geographical site – be it an industrial park, in the wider business community or even in the town centre – protective relay calibration is something that you, and (to an even greater extent, your safety experts) need to understand and be on top of. This articles should give you a greater insight into what protective relays are, what they do and why they need regular service and calibration. To begin at the very beginning, a protective relay is a gadget or device that is designed to protect your electrical equipment and machinery. As many industrial and commercial business machines cost many thousands of dollars to replace, protecting what you have with relatively cheap protective relays is plain common sense. The protective relay to sense when something abnormal is happening with the energy flow into your machine or machines and to 'trip' a suitable circuit breaker to cut the power, thereby preventing damage or even total, cataclysmic failure if the input is sufficiently damaging. Incidentally, although the most obvious cause of such a failure would be an overflow of electricity, it can also be triggered thermally or it may be a current reversal, under-frequency, reverse power flow and over-voltage. This is completely dependent on the type of relay you have and the risks that it is designed to protect against. In the 'old days', protective relay devices were primarily electromechanical, connected to a physical circuit breaker. Of course, the ubiquitous microchip has taken over in recent times, although electromechanical relays still exist all over the world, mainly because they have such a long lifespan. However, the microchip has brought many advantages, such as offering types and levels of protection that were not practical previously, so in this case, at least, progress must be welcomed. How they work is not the most important point in any case. The thing that really matters is that you are certain that your protective relays offer the broadest possible range of protection in the widest range of risk situations. In very simple terms, your protective relay works as a sensing device, which is one reason that microchip driven systems can be made so much more accurate. The relay is also designed to clear the fault or overcome the risk as quickly as possible, thus ensuring that potential 'down time' is minimised. A microchip device can also be used to protect several machines at the same time, as it is 'intelligent' enough to identify not only what the problems is, but exactly where it is threatening. Of course, it should follow from the foregoing that the degree of protection offered by your protective relays is 100% dependent on making sure that they are correctly installed and then calibrated. Very obviously stated, the job of your relays is to 'kick in' when something starts to go wrong. Any later or slower than this could be fatally slow, as fires, destroyed machines and therefore huge cash flow and business damage could easily happen. This is where professional protective relay calibration is crucially important. Guessing the settings you will use is no good, nor is it necessarily the best idea to install the device with factory defaults, because they may not match your requirements. So, if you have new protective relays to install or existing devices already in place, you first need to identify what you need to protect and against what. For example, a pernicious risk of heat damage can be a major problem in some industries or businesses, but it may not be true in your unique situation. Thus, there is no 'one size fits all' solution that suits everyone. It is something best established through detailed consultation with an expert. This is especially true for older installations as requirements or demands on your business may change, and even microchips are not perfect! If it has been some time since you had your protective relays checked, there is a decent chance that the calibrated settings have 'slipped', which could represent a disastrous risk that you are not even aware of One Alpha Group, boasting around four decades of 'hands-on' experience of electrical installation, inspections and safety, are exactly such experts an all aspects of electrical installations, servicing and testing. We have the knowledge, the specialist personnel and the experience to diagnose and deal with all your protective relay problems, beginning with a no-obligation phone call to +60.3.7610.4543.   read more
One Alpha Electrical Services Sdn Bhd added new video in Electrical Services
Nov 4, 2018 at 12:06 pm —

Electrical Safety In Vehicles

Electrical safety is always of paramount importance in every situation, and oftentimes it is quite obvious exactly what electrical safety constitutes, or how it applies to a specific situation. Have you ever thought about electrical safety in the case of a vehicle accident? Probably not, in One Alpha's experience. After all, you are already shaken up enough by being involved in a collision without having to think of electrical safety too. But you really need to. Watch to see why ...
One Alpha Electrical Services Sdn Bhd added new video in Electrical Services
Oct 25, 2018 at 06:13 pm —

Solar Energy, Solar Power - For The Future, For NOW!

This solar power video examines the use of solar power banks and shows how solar energy is collected using solar panels in some pretty major industries. It was shot on the roof of a major motor vehicle manufacturing plant, and shows how the company has slashed their power bills with a huge number of solar panels in circuit with solar power banks - to accumulate the solar power - that together have dropped the electricity costs of a factory that uses a lot of electricity by a very cost-significant margin. Advising on the suitability of solar power and solar energy for your factory or office building is just one of the myriad range of power management services offered by the One Alpha Group. Call us about it on +607-2345153 today.
One Alpha Electrical Services Sdn Bhd added new video
Oct 15, 2018 at 06:30 pm —

Electrical Inspection 'Never-Do's' and Single Line Diagrams

In this video, we see some of the most common 'failures' that clients make when it comes to the absolute integrity of their electrical installations, and why they are so often unsafe. On the good side, the electrical single line diagram they have on the wall is a perfect ec=xemple
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