Understanding the applications and practical limitations of industrial control panels is essential to guarantee proper usage as per the situation and requirements. According to the NEC (National Electrical Code) section 409.2, industrial control panels are defined as an assembly of two or more power circuit components or any combination of power and control circuit components. Industrial panels are factory-wired assemblies of control equipment like switches, motor controllers, relays, etc. However, it must be noted that UL listed industrial panels do not include any externally connected load.
A bright sunny day for you may be a disaster in the making for your VFDs. Air conditioning systems are installed to ensure that machinery such as drives, panels, etc. run within the optimum temperature range. But if the temperature surpasses expected levels, things can go wrong very quickly. Heat dissipation is often overlooked in the case of VFDs or AC drives, leading to devastating downtime. Keeping into account a few factors can greatly help keeping the energy dissipation in check, and reduce the risks of unexpected shutdowns.
Pumping systems are widely used in a number of industries from mining to petroleum to manufacturing. These systems account for nearly 20% of the world’s energy used by electric motors! A minute dip in their efficiency can put great financial strain on the entire system and risk the machines’ life. The American Society of Mechanical Engineers (ASME) has published a comprehensive list of standards that can help assess the efficiency of pumping systems.
Underwriters Laboratories (UL) is a century old consulting and certification company that is known throughout the world for its stringent levels of certification for electrical devices and components. Industries such as manufacturing, mining, energy, etc. need to follow a certification system for the equipment they procure to make sure their property and personnel are out of harm’s way. Out of the several UL standards that exist, company's that provide electrical components should be UL508A certified.
The 1970s saw the introduction of PLCs or Programmable Logic Controllers, which would forever change the way automation is achieved in industrial environments. Known for its rugged design and scalable implementation, the PLC was adapted by all major manufacturers and to this day is the norm for industrial automation. Allen-Bradley, Omron, Siemens, AEG, etc. became the leaders in PLC manufacturing, and soon the controllers had the processing capability of a computer while withstanding harsh industrial conditions.
Variable Frequency Drives (VFDs) have slowly become the industrial norm for controlling the output of three-phase AC motors. By varying the voltage and frequency, VFDs achieve smooth and reliable control of the motor’s torque and speed. From motion control applications to ventilation systems to heavy manufacturing, VFDs have become a staple in the industrial landscape.
Variable Frequency Drives form an essential part of any manufacturing plant. Its continuous operation is necessary for maintaining a plant’s output, and any failure results in a chain reaction, effectively bringing the entire industry to a standstill.
In order to stay ahead in industry and to keep a company profitable, it is important to stay up to date with technology. Using the most efficient systems and products in manufacturing can help your company save money and save energy, which helps to not pollute the earth.
It’s a beautiful day outside. But the sun is high overhead and the temperature is going through the roof. As the air conditioning struggles to keep up, all the machinery, drives, panels are running, doing their job. Then, all of a sudden, everything shuts down. After investigation, you find that one of your drives overheated and shorted out the whole area. Heat dissipation in variable frequency drives (VFDs) or AC drives is an easy thing to overlook, but could lead to devastating downtime. Here are some tips on what to keep in mind when calculating how cool to keep drive enclosures.
Topics: Motors & Drives
When it comes to industrial configurations, one of the most important pieces of the puzzle is an energy efficient installation of variable frequency drives (VFDs). Also known as adjustable-frequency drives (AFDs) or AC drives*, VFDs should be a mainstay in nearly any manufacturing operation. After all, being energy efficient is not only more time efficient, but it also ultimately saves in many different costs.