This year Weschler Instruments celebrates its 80th year as a supplier of meters and instrumentation. Much has changed in electronic measurement equipment and technology since 1941. Vacuum tubes were replaced by transistors and then integrated circuits. Analog indicators became digital readouts and then graphical touchscreens. Manual operation migrated to automatic sequencing and then fully computerized tests.
A main panel is an installed box where the power from the utility company enters the premises. A subpanel is an installed features that acts as a middle ground for the main panel and other types of circuits that are connected to your property. In this brief guide, Hardcore Electric will provide you with information pertaining to main panels and subpanels and instruct on their usage.
Situation: Worker approaches the enclosure and the disconnect switch for the 480V power source is in the OFF position. The disconnect switch has failed with one phase (L1) in the closed position (L2, L3 are open). The ground leads of the devices are NOT connected to ground because of an improper installation or termination failure.
Control panel builders utilize several factors to create optimal functionality. Taking these considerations a step further to ensure safe operation, designers should adhere to widely accepted standards, notably Underwriters Laboratories (UL) UL508A. UL508A provides guidance for panel design, including the approved method to determine short circuit current rating (SCCR).
More often than not, there’s an ideal tool for the job. For example, you wouldn’t try cooking a steak in the microwave, as that particular tool is not engineered for properly preparing that kind of food. You’d of course cook a steak on the grill, as that type of heating application is best designed to heat the steak to your exacting specifications. In today’s industrial enclosure marketplace, there are numerous options for enclosure material, and each has its own specifications, ideal applications, liabilities, and value propositions.
Whether the utility provides electricity, gas, water, or sewage treatment, management has a duty to protect employees by providing a safe work environment and Personal Protective Equipment (PPE) required for the job in the facility and in the field. However, despite various PPE options, many utilities fail to supply or specify important lighting tools – namely headlamps.
Authorized employee training is one of the most important aspects of a complete energy control program. Training delivers the knowledge that employees need to effectively lock out equipment for servicing or maintenance. This type of training should include the use of energy control procedures as well as lockout locks, tags and devices.
Professor Friedhelm Loh has received the highest recognition for his success and commitment – from the top levels of business and politics and far beyond Germany’s borders. Through his personal achievements, his top political honours and great entrepreneurial courage, he has nevertheless remained – as he says himself – a “simple worker” and above all: grateful.
A new generation of switches for touchless switching has been developed for switching without touching. Switching without contaminating the surface with potentially harmful germs, viruses or bacteria. How do these switches work and what are they capable of?
Utilities that are replacing their aging remote terminal units (RTUs) and SCADA systems are doing so to ensure system reliability, improve usability and enhance future scalability – taking advantage of technology advancements in data connectivity and remote management. But how a utility approaches such a project is critical to ensuring that their system upgrade will be seamless and cost-effective.
Electrical control panels are an integral part of any automated manufacturing process. While control systems are a fundamental aspect of electrical engineering, many people aren’t aware of the key control panel components required to function safely and reliably.
One of the key ways to help protect your organization against nefarious actors and cyberattacks is proactive firmware and software management. Keeping your firmware and software up to date isn’t a one-off exercise. It’s a process. And manufacturers are well advised to adopt version updates as they become available. Especially as more manufacturers implement digital strategies to improve operational efficiency, reveal data-driven insights, and use cloud-based technologies.
The International Society of Automation (ISA) and the ISA Global Cybersecurity Alliance (ISAGCA), with contributing author Pierre Kobes, have released a white paper entitled, “Applying ISO/IEC 27001/2 and the ISA/IEC 62443 Series for Operational Technology Environments.” Many organizations have established policies and procedures governing the IT security in their office environment predominantly based on ISO/IEC 27001/2.
Spanish company Packfeeder has developed a family of automatic, robot-supported bottle unscrambling machines for the packaging industry. The so-called Pickfeeder uses the eXtended Transport System (XTS) from Beckhoff to implement a machine concept that is highly flexible and suitable for the most demanding sorting jobs in packaging with virtually no changeover effort.
If you don’t know every last industrial asset that’s installed in your production facilities and stocked in your storerooms, you’re not alone. Over a period of decades, it’s easy to lose sight of what assets you have as those assets are replaced, parts are restocked and employees change roles. But maintaining a complete understanding of your assets – from industrial control devices and parts, to machines and equipment – is a prerequisite to optimizing how you manage them.
Multi-function safety relays are often the best choice for applications where single-function relays aren’t capable enough and a safety-rated PLC is overkill. Many machines and robots require safety circuits to stop all or part of operation in the event of an emergency. Safety circuits are also used to keep all or part of a machine or robot from running while there is human activity in close proximity, either for normal operations or maintenance.
