Harmonic Filtration
PROTECT YOUR EQUIPMENT FROM ELECTRICAL POLLUTION
Prevent power disruptions, reduce maintenance costs, and improve efficiency with harmonic filtration.
We have successfully helped our clients with solutions across a range of industries and applications.
📞 Call 011 615 4640 or Fill out the form to get started.
REDUCE ENERGY COSTS
IMPROVE POWER QUALITY
PREVENT EQUIPMENT DAMAGE
Why you need to eliminate harmonics in your electrical systems
Harmonics are a type of electrical pollution which results in distorted voltage and current wave forms. This negatively impacts your electrical systems by increasing the root mean square (RMS) of the voltage and current, lowering the power factor and deteriorating the quality of the electrical supply. Harmonics in your electrical systems could lead to:
Increased energy consumption, thus increased operating costs
Poor power quality & efficiency
Reduced equipment lifespan & increased maintenance
Interference with communication systems & other electronic equipment
Reduced power system capacity, reducing reliability
Tripped circuit breakers, blown fuses
Increased neutral current, leading to overloaded systems & overheating, becoming a potential fire hazard
Reduce costs, maximise savings and improve efficiency & equipment lifecycles with Alpha Power Solutions!
Capacitors supplied by Alpha Power Solutions have the following features:
Depending on the harmonic content of an electrical installation, we use either active or passive harmonic filters. We have found that these methods are the most effective and cost-effective.
Alpha Power is an expert in both power factor correction and harmonic filtration. With over 30 years’ experience, we have successfully helped our clients with solutions across a range of industries and applications.
Our harmonic filters eliminate or reduce to acceptable levels, distortions caused by harmonics.
Our harmonic filters
Alpha Power’s harmonic filtration filters are available in a passive or active range to best suit your application’s requirements. We can conduct a detailed analysis of your network to determine which filter will suit your application best.
There are two main types of harmonic filters: passive and active. Passive filters use a combination of capacitors and inductors to filter out harmonic frequencies, while active filters use power electronics to actively cancel out harmonics in real-time.
Not sure which filter you require? We will figure it out for you! Contact us!
Here are a few key attributes of each filter:
| Active harmonic filters | Passive harmonic filters |
| More precise harmonic correction compared to passive filters since they tend to respond quickly to changes in harmonic levels | No maintenance is required and they typically have a longer lifespan compared to active filters. |
| Typically, more expensive than passive filters and require more maintenance. | Lower cost and equipment specific. |
| Handle higher levels of harmonic distortion than passive filters. | Contains no electronic components, making them less vulnerable to general failures and failures caused by power surges. |
| Need to be installed in well-ventilated rooms and generate a fair amount of noise (up to 65 dB). | No power source is required to function, making them ideal for remote locations. |
Industries we serve
Our harmonic filters benefit industries that use non-linear loads such as variable frequency drives, soft starters, LED lighting, and uninterruptible power supplies that create harmonic distortion in the electrical system.
The following is a list of industries we serve:
Data Centres & IT
Manufacturing
Healthcare
Energy & Utilities
Retail & Commercial Buildings
Hospitality & Leisure
Mining & Metals
Chemical & Petrochemical
The two major contributors to harmonics include electronically controlled equipment and multiple electronic devices connected to your system. The nature of these electronics causes extremely quick pulses, creating a sine wave that becomes non-linear in shape. The end result affects the operation and longevity of your inter-connected systems and equipment.
By installing harmonic filtration units, these industries can improve power quality, prevent equipment damage, increase efficiency, and reduce operating costs!
Frequently Asked Questions
What are harmonics?
Harmonics are a type of electrical pollution that can negatively impact your electrical system. They are currents or voltages whose frequencies are an integer (whole number: zero, or positive or negative number) multiple of the fundamental frequency. They occur due to a distortion in an electrical network created by non-linear electrical devices such as variable speed drives, DC drives, soft starters, UPS, etc.
How do passive harmonic filters work?
When harmonic currents flow through passive harmonic filters, they are absorbed and dissipated as heat, which improves power quality and reduces the risk of damage to electrical equipment.
What does a passive harmonic filter consist of?
They typically consist of passive components such as inductors and capacitors that are connected in a specific configuration to cancel out harmonic frequencies.
How do active harmonic filters work?
These filters are wide-spectrum harmonic current sources capable of generating a large range of harmonic currents and use very high-speed switching devices like IGBTs, ensuring a response time of a few milliseconds. They produce counter-harmonic currents in phase opposition to that produced by non-linear loads, and these generated currents are injected into the system in real time, ensuring effective cancellation of all harmonics present in the network.
What does an active harmonic filter consist of?
They typically consist of a high-performance CPU which controls IGBT’s.
What are acceptable harmonic distortion levels?
A total harmonic distortion (voltage) or THD(V) of 2.5% and a total harmonic distortion (current) or THD(I) of 15% are usually considered safe levels.
How can you reduce harmonic distortion levels?
Depending on the severity and source of the harmonic distortion, active or passive harmonic filters can be installed to reduce the harmonic levels present in a system. Contact us and one of our experts will get back to you.
Can I have my harmonic levels measured by Alpha Power?
Yes, Alpha Power Solutions can measure the harmonic levels in your electrical systems on your premises. Get started with solutions from Alpha Power!
Prevent equipment malfunction, shutdown & premature failure with harmonic filtration equipment from Alpha Power Solutions. Contact us 011 615 4640 or complete the enquiry form.
TRUSTED BY INDUSTRY LEADERS
Our proven solutions have helped businesses across a wide range of industries save on electricity costs and improve efficiency. Here are just a few of the companies that trust Alpha Power Solutions to optimise their energy usage and keep their operations running smoothly.
INDUSTRIES THAT BENEFIT FROM OUR SOLUTIONS
Our energy-saving solutions are tailored to meet the needs of various industries. Whether you're in manufacturing, food processing, or retail, we help businesses like yours cut electricity costs, improve efficiency, and reduce downtime. Explore how we can support your industry.
| Abattoir | Dairy products processing | Paper & cardboard manufacturing |
| Bakery | Data centre | Paper & cardboard printing |
| Brewery & cooldrink bottler | Distribution centre | Paper mill (modern & traditional) |
| Brick manufacturing | Food processing plant | Pharmaceuticals manufacturing |
| Cable manufacturing | Metal fabrication | Plastic recycling |
| Cement product manufacturing | Metal recycling | Plastics product manufacturing |
| Chemical industry | Milling (flour, animal feeds, etc) | Saw milling and wood processing |
| Chicken farming (industrial) | Mineral processing | Store retail (large) |
| Cold storage | Packaging manufacturing (metal) | Tobacco product manufacturing |
| Manufacturing (components & parts) | Packaging manufacturing (paper & plastic) | Warehousing (large) |
POWER UP YOUR SAVINGS
We make it easy for you to start saving on electricity costs. Follow these three simple steps to get started.
1
CONTACT US
Call, email, WhatsApp, or fill out our form. We’ll align with your energy goals and start the conversation about reducing your electricity costs.
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2
SEND US YOUR ELECTRICITY BILL
We’ll analyse your bill to provide a preliminary cost/benefit analysis, showing you how much you could save.
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3
GET YOUR PERSONALISED SOLUTION
We’ll give you a tailored plan detailing your potential savings and the cost of the solution, so you can make an informed decision.
I want to reduce my Power/electricity cost
Tailor made solutions to help you reduce electricity costs by up to 20%, call now or use the form to send us your requirements.
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