Electrical cabinet cooling systems are designed to maintain internal electrical enclosure temperatures so as to ensure electrical equipment inside the enclosure remains below maximum design temperatures. Research shows the life expectancy of electrical equipment is halved for every 18 ºF increase in temperature. So, it’s imperative to provide cabinet cooling systems for electrical enclosures subject to high heat loads, especially those enclosures situated in locations where natural cooling is ineffective or exposed to dust and chemical pollution. In order to reduce running costs and to ensure proper cooling, high efficiency cooling systems should be used.
Electrical equipment such as VFDs, contactors, and PLCs generate heat through power losses. This same equipment can lose efficiency, operate erratically, or even fail prematurely due to excess temperatures, resulting in reduced productivity, customer dissatisfaction, and lost revenue.
Excess heat can cause electrical components, such as PLCs, VFDs, and power supplies, to lose efficiency and reliability, and may even cause them to fail early. In an industrial setting, these components are housed in protective enclosures, which trap waste heat and raise the temperature of the enclosure air above their maximum allowable temperature.
When you are selecting an enclosure air conditioning supplier, you’ll want to make sure the supplier is capable, competent, and that their equipment meets your requirements. So, before placing an order, spend a little time evaluating potential suppliers to make sure you select one that will deliver the quality you need. Continue reading →
Mechanical and electrical equipment used in water and wastewater treatment systems include a range of pumps, blowers, motors, meters, and sensors for critical operations. Electrical controls for this equipment must be protected from hazards such as corrosive vapors, cleaning fluids, chemical reagents, and contaminated water, as well as environmental dust and dirt, particulates from treatment chemicals, and inclement weather.
Designing an enclosure cooling system for a water treatment plant is different than for most other industrial settings. The environment in and around the plant is far more likely to have high humidity, and to be exposed to the corrosive liquids and vapors from the harsh chemical reagents required to sterilize the infrastructure from viruses, bacteria and other toxins present in the wastewater stream.
Choosing the right enclosure air conditioner involves more than just selecting a unit with adequate capacity. It’s important to consider the energy efficiency of the air conditioner as well as its long term reliability.
For many projects, a buyer will insist on several bids from vendors before placing orders. This is a valid requirement but, unless care is taken when selecting enclosure air conditioners, products selected may not meet operational requirements because the comparison process doesn’t take into account aspects other than the initial price. Continue reading →
Although many electrical enclosures are naturally ventilated, there are a number of sound technical reasons for using sealed electrical enclosures. These include keeping components clean, dry, and preventing ingress of corrosive materials and dust. However, modern electrical and electronic equipment generates a significant amount of heat that must be removed from the enclosure, and sealed electrical enclosures cannot rely on traditional ventilation or fans for cooling. Thus, closed loop cooling is needed to ensure internal temperatures are maintained at safe levels. Continue reading →
The widespread adoption of enclosure air conditioners to keep electrical enclosures cool has enhanced enclosure reliability and allowed the use of sensitive equipment in harsh locations. Further, the availability ofonline tools for selecting air conditioners has made it easier for enclosure cooling designers to choose the right air conditioners for their applications. But sometimes solutions are not that obvious and outside help is required. Here are seven enclosure air conditioner questions that, perhaps, you should have asked.