Automatic Voltage Equalizer | Active UNITS 

Voltage Balancing | Surge Suppression |  Active Harmonic Filter | VAR Compensation


Low, Medium & High Voltage Systems

“ Solutions for energy efficient and reliable power distribution systems. “


Recognizing and Solving Power Quality Issues -News Article

Recognizing and Solving Power Quality Issues -News Article

Informative news article which highlight the common problems and presents new concepts and remedial equipment designs by EM Energy Solutions to increase facility power quality, increase safety, and reduce operating costs.Power quality issues can affect multiple...

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EM Energy Solutions Energy Storage Systems (ESS-CPT)

EM Energy Solutions Energy Storage Systems (ESS-CPT)

EM Energy Solutions ESS, built on state-of-the-art-technology are desinged to be highly fexible and modular in power and capacity. A wide variety of smart operation modes and the flexibility to connect to any voltage level, makes EM Energy Solutions ESS a...

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EM-ENERGY SOLUTIONS designs products for increased power quality and energy optimization in electrical distribution systems. Our new revolutionary patented AVE technology, together with our state-of-the-art harmonic filters and VAr compensator solutions, will lower overall costs in terms of reduced downtime, energy consumption, and emissions along with extended lifetime on electrical equipment and increased personnel safety.

The AVE series, harmonic filters, and VAR compensators can be scaled to fit all conventional distribution systems. Installation is simple; equipment connects in parallel on the supply transformer secondary side and protects all downstream equipment against transients, harmonic distortion, voltage unbalance, unbalanced voltage sags, arc-flash, and improves power factor.

Industry Challenge

Today’s use of electronics and power electronics is setting higher demands for power quality. The industry is experiencing considerable costs in terms of increased power bills, reduced operational lifetime, and damage to electrical equipment. Many of these problems are related to the harmonic distortion created by the increased use of power electronics, transient voltage surges, and unbalanced voltage dips caused by uneven phase loads.

Voltage imbalance is a large and expensive problem in the industry. Electric motors will operate at higher temperatures and lower efficiency, which results in significantly reduced life expectancy and increased power consumption. For electrical equipment, a rule of thumb is that an average temperature increase of 10 degrees. Celsius equals a 50% reduction in life expectancy.

Equipment failure and system lockup result in unreliable operation with downtime and production stop. Many industries run delicate processes that require a fully functional production line. Production stop related to faulty equipment can significantly impact production output and, subsequently, a company’s earnings.

Another high potential industry hazard is Arc-Flash. Arc-Flash is one of the most dangerous incidents for both personnel and equipment. It is an electrical explosion/discharge that results from a low-impedance connection through the air to ground or another high voltage phase in the electrical system. It may also be initiated through accidental contact, underrated equipment compared to available short circuit current, contaminated insulated surfaces, as well as other causes.

An arc-Flash event can dissipate large amounts of deadly energy in the form of a shock wave and superheated metal plasma. Temperatures can reach as high as 19 000 degrees Celsius, even hotter than the surface of the sun.
This kind of energy can set fire to clothing and severely burn human skin in fractions of a second. According to Industrial Safety and Hygiene News report, there is, on average 30 000 Arc-Flash incidents every year with an estimated 7000 burn injuries, 2000 hospitalizations, and 400 fatalities.



EM Energy Solutions deliver products for voltage balancing, harmonic filtering, UPS and VAR compensation 

For voltage balancing, we deliver the AVE series is designed for balancing phase voltages with respect to ground and mitigating transient events to a non-damaging level. Any kind of voltage imbalance on a system will be detected, and the unit will redirect the energy from the high voltage phases to the low voltage phase. The AVE suppresses transient voltage spikes without degradation of itself and does not allow the installation to be exposed to voltages several times the nominal rating. If the voltage is controlled, there is no force behind the current to push it into damaging levels. Due to this, AVE also increases the installations safety factor by reducing the risk of electric shock, arc-flash, and potential fire.

Our active filter units are designed to mitigate harmonic current distortion and subsequent voltage harmonics, by real-time modulation and of the measured harmonic current distortion. By injecting the same harmonic current measured in the distribution system 180 degrees phase-shifted, it will cancel out both current and voltage harmonics.

Our VAr compensating units will ensure optimal power factor. And will compensate for both leading or lagging power factor, and provide a power factor ≈1. Conventional solutions based on capacitor technology are to slow for many of the fast consuming reactive loads and are not able to follow the reactive power demand, which leads to under and overcompensation of reactive power. Our 3-level IGBT topology technology allows for real-time response, preventing any under or overcompensation.

The active units come in a variety of combinations and can have both VAr compensation and Harmonic current compensation in the same unit. By assessing the plant’s power quality situation, the solution can be tailor-made, to provide the most cost-effective solution. We also offer solutions for energy backup, enabling plants to ride through momentary or long term power outages.

To summarize, our technology serves as a surge suppressor, voltage regulator, load balancer, and harmonic filter. It is easy to install and connect in parallel on the transformer secondary side. It will protect all downstream equipment, thus making other power quality technology, such as MOV based devices unnecessary and obsolete. By having our units installed, the result will be substantial cost savings and increased electrical safety.