As electrical components become increasingly smaller and are more densely packed into electrical control panels, the amount of heat generated inside cabinets continues to increase. When considering heat dissipation in control panels it’s important to note what electrical equipment manufacturers specify as a maximum allowable operating temperature for their components. Maintaining a maximum internal control […]
In industrial facilities, electronic equipment is frequently used for motor control and most machines are PLC controlled. This use of electronic equipment has increased electrical enclosure heat loads because of the high heat dissipation characteristics of electronic equipment. At the same time, electronic equipment is susceptible to malfunction if allowed to get too hot, […]
An electrical enclosure located outdoors faces a number of unique challenges. Apart from exposure to all kinds of weather, the ambient temperature in summer is high and the effect of solar radiation must be considered. In these conditions, it is likely the internal enclosure temperature will be elevated and may exceed safe limits unless the […]
Air to air heat exchangers are an ideal solution for cooling electrical enclosures—when used correctly. What is the right way to use an air to air heat exchanger? Here are some tips.
Although air to air heat exchangers have been around for many years, there are misconceptions about how they work and why they are so useful. Many are skeptical about this form of cooling and feel that it’s no better than fan-assisted cooling or natural ventilation. The truth is air to air heat exchangers are a […]
Control panel designers face an ongoing conflict between meeting the technical requirements for electrical control panels and budget allocations. On the one hand, there’s the desire to choose generously sized control panels that optimize the layout of electrical equipment and, on the other, the need to exercise tight cost restraints that inevitably mean compromises […]
Industrial control panel designers often overlook the importance of effective enclosure cooling. For this reason, many panels are designed for natural ventilation and insufficient consideration is given to the combined effects of ambient temperature and enclosure heat load. This results in an inability to maintain the cabinet’s internal temperature at a safe level.
The treatment of water, whether for human consumption or purifying wastewater, involves the use of various processes to clean and disinfect the water. A number of chemicals are used along with processes such as biological treatment, aeration, coagulation and settlement.
The selection of an enclosure air conditioner is relatively simple provided you pay attention to the details and correctly size the unit. Proper selection is important because an air conditioner that’s too large will cycle frequently, causing relatively wide temperature fluctuations that contribute to thermal stresses. In addition, the frequent cycling could reduce the service […]
An air to air heat exchanger has the unique ability to cost effectively deliver convection cooling to heat producing electrical equipment with the advantages of a closed-loop cooling system. The closed-loop design cools and recirculates the air inside the electrical enclosure, while isolating electrical components from environments that pose contaminant problems.
In the world of industrial cabinet cooling, air to air heat exchangers may seem like the odd duck. Most engineers, designers and plant operators know that filtered fans or air conditioners can be great solutions to maintaining cool temperatures in electrical enclosures, but many may not understand the unique benefits of air to air heat […]
Industrial electrical equipment gives off “waste” heat as it operates—a result of inefficiency in converting electrical energy to work. Unfortunately, the equipment itself, such as variable frequency drives (VFDs), switching gear, motor starters, and power supplies, is designed with maximum operating temperatures above which it loses even more efficiency or fails to operate.
Regional climates play a critical role when planning control panel installations. Carefully analyzing climate conditions at the control panel enclosure site prior to installation helps identify the extent to which the electrical components will be exposed. Harsh indoor and outdoor climates can create multiple sources of risk for potential electrical equipment failure.
Components in an industrial control panel enclosure are subjected to heat generated by equipment inefficiencies as well as heat transferred from outside sources, high ambient temperatures, and nearby industrial machines. The components may also experience low temperatures due to cold weather. As long as they are maintained within the manufacturers’ specified temperature range, the […]
Filters are an important part of any thermal management system. Whether the enclosure cooling system is comprised of cooling fans or uses an air conditioner, air filters are used to protect motors, drives and electrical components from harsh environmental elements such as dust and dirt. Filters require cleaning or replacement at regular intervals since clogged […]
This year’s summer has again been hot and some areas have experienced exceptionally heavy rainfall and high humidity. Consequently, enclosure air conditioners have had their work cut out keeping electrical enclosure temperatures and humidity under control. With cooler weather coming on, this is a good time to perform end-of–summer maintenance checks and make sure that […]
During the life of an electrical enclosure, it’s fairly certain alterations will be made to accommodate changing requirements. Sometimes these changes are minor, but in other circumstances, it’s necessary to make major alterations to cater to plant expansion. In any event, it is always good engineering practice to size electrical enclosures to allow a certain […]
Taking proper steps to build an industrial control panel enclosure the right way, with cooling in mind, means the electrical components will last longer, provide trouble free service and be easy to maintain.
Industrial electrical equipment is crucial to the operation of many manufacturing operations and their reliability is of utmost importance. Businesses cannot afford costly downtime due to electrical component malfunctions from overheating or damage from dust and dirt, moisture or corrosive chemicals.
The environment of an industrial control panel has a significant effect on system reliability and should be carefully evaluated during the control panel design stage. Environmental aspects that affect industrial control panels include ambient temperature, contamination, corrosion and vibration, and different strategies are required to ameliorate their effects. These include the installation of effective […]
The almost insatiable demand for high-speed internet has led to a situation where the number of telecom enclosures needed to meet these requirements is growing almost exponentially. Although modern telecom equipment is robust, the power requirements of high-speed data communication equipment are such that the power density inside telecom enclosures is increasing at a […]
Almost every industrial or municipal facility, such as a telecom tower, water treatment plant, or food and beverage factory, runs on electrical distribution systems and process controllers housed in industrial control panels. In most cases, these enclosures trap waste heat given off by the electrical equipment inside, which causes their interior temperature to rise.
Today’s telecommunications networks are essential for the Internet, cell phones, and industrial control and communications, in addition to radio and television. As bandwidth and power demands increase, the electrical component densities in telecom equipment, such as transmitters and receivers, increase at similar rates.
Industrial control panels house valuable electrical and electronic equipment which must be protected from excess heat. Components, such as PLCs, VFDs, transformers, and power supplies, are designed to operate within an optimal temperature range, and often these temperatures are exceeded within the confines of the control panel.
When it comes to evaluating the cost of ownership for an electrical enclosure cooling system, things can get complicated. Choosing an easy way out by basing the entire purchasing decision on price alone would be a big mistake. Picking the least expensive unit that barely meets your minimum specifications could cost you much more in […]