MTE Featured HVAC Solutions
Featured Product from MTE Corporation
Power Quality Solutions for Commercial HVAC
Modern HVAC Systems provide greater energy efficiency, increased control and sensing, while adhering to strict regulatory demands. Accordingly, the number of variable frequency drives (VFDs) has surged within these advanced HVAC systems to match the overall performance expectations. Unfortunately, the increase in VFD usage introduces power quality issues that can lead to equipment damage, costly downtime and reduced efficiency. MTE power quality solutions mitigate the harmonic problems associated with VFDs, resulting in longer system life and better overall performance for your HVAC system.
ROOFTOP & AIR HANDLING UNITS – Often found on schools, hotels, and office buildings, packaged rooftop units (RTU) and air handling units (AHU) make up 31% of the US HVAC market. VFDs are incorporated readily in both systems to manage targeted zone control throughout building ductwork.
CHILLERS – Often found on hospitals, high rise buildings or factories, the chiller units rely on helical rotary compressors, capable of adjusting speed through the use of VFDs. Some chillers feature multiple individual compressors for increased flexibility of airflow and efficiency, which increases the total number of VFDs.
COOLING TOWERS – VFDs are used to control the fan speed to maintain water temperature instead of constantly turning the fans on and off. Cooling towers are typically used in conjunction with Chillers and Air Handling Units.
BLOWERS & FAN MOTORS – VFDs are used together with fan motors to control the power and speed at which air is efficiently distributed throughout the HVAC system. Accurately regulating airflow results in increased comfort and energy savings for the consumer.
Power Quality Challenges for HVAC
The technology used in today’s HVAC equipment is more advanced than ever before as it strives for high efficiency and high output, while meeting or exceeding regulatory demands. While this makes temperature control more effective in commercial buildings and structures, it also presents the potential for new problems. Several of these include interference to telecommunications systems, disruption to programmable logic systems, overheating of components as well as malfunction of the air handler and chiller unit itself.
The cause of these problems may be from harmonic distortion, which is brought into the electrical systems of buildings through the use of VFDs that are installed in air handler and chiller units to control the speed of the compressor motors. These VFDs enable the HVAC system to vary their output to reduce energy costs, but they have a tendency to introduce harmonics into the building’s electrical system.
At the same time, aging HVAC systems tied to older electrical infrastructure present their own harmonic challenges. Factor in the increased use of sensors, used for both safety and efficiency purposes, and the need for power quality solutions grows.
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About MTE
The Power Quality Experts
MTE Corporation was formed in 1982 by bringing together Milwaukee Transformer Co., Transformer Design Inc. and Milwaukee Electronics Corp. – companies that specialized in different fields of magnetics and transformer designs and were long established in their respective fields. MTE vaulted into a leadership role in power quality with its unique AC reactor design and passive filter expertise. We continued to grow as a global leader with innovative Harmonic Filters, Motor Protection Filters and Sinewave Filters.
Now with the addition of TEAL Electronics in 2016, MTE brings a continuum of power quality solutions unmatched in the industry. Building on TEAL’s reputation of high-efficiency transformers and durable power conditioning and distribution units for demanding applications, MTE is building the best power quality company by capitalizing on the individual strength of each while bringing a new dimension in management, marketing, and quality.
Our team of professional design engineers has well over 100 years of collective experience in the industry and is complemented by as much experience in operations. Our engineers utilize state-of-the art platforms and best-in-class simulation/modeling tools so that new designs meet your needs and the latest compliance standards while improving your bottom line. At MTE, we know power quality because power quality is all we do.
