Controls… 4 Steps to Calculate Short Circuit Ratings in Industrial Control Panels 1 May 202018 Apr 2021 By ABB Low Voltage A short circuit is a low-resistance connection established by accident or intention between two points in an electric circuit. This excessive electric current potentially causes circuit…
Controls… Basic Questions to Ask About Control Panels 12 Jan 20206 Dec 2020 By Jerry Smith Electrical control panels are designed and used to control mechanical equipment. Each one is designed for a specific equipment arrangement and includes devices that allow an operator…
Drives Cost benefits of AC drives 17 Aug 2019 By ABB. In addition to their technical advantages, AC drives also provide many cost benefits. In this post, these benefits are reviewed, with the costs divided into investment, installation and…
Drives… Line and Load Reactors Basics 11 May 201914 Feb 2021 Reactors can protect both motors and variable frequency drives (VFDs) from harmful current and voltage spikes. Reactors also help reduce power line distortion, known as harmonics, by adding impedance to…
Drives How To Maintain A VFD Drive 28 Apr 20196 Dec 2020 By Dave Polka, ABB. Do you know how to maintain variable frequency drives (VFDs)? Doing so is easier than you might think. By integrating some simple, logical steps into your…
Drives Adjustable Speed Drives 10 Apr 201914 Apr 2019 By Leeson. By definition, adjustable speed drives of any type provide a means of variably changing speed to better match operating requirements. Such drives are available in mechanical, fluid and…
Drives AC Tech MCH Series Drives HVAC Application Guide 22 May 201715 Apr 2019 By Lenze/AC Tech. Affinity Laws Most HVAC systems are designed to perform during peak load conditions that rarely occur during the year. Various flow control methods such as inlet guide…
Drives How Do I Derate Three Phase Inputs For Single Phase Applications? 8 Feb 201718 Apr 2021 Often times those using a Variable Frequency Drive (VFD) may find they need to connect a higher horsepower VFD to a single phase input power source. Since most high horsepower…
Drives Mating New Variable Frequency Drives to Existing Motors 8 Feb 201710 Apr 2021 Motors connected to VFDs receive power that includes a changeable fundamental frequency, a carrier frequency, and very rapid voltage buildup. These factors can have negative impacts, especially when existing motors…
Drives Ultra-Low Harmonic Drives Keep Harmful Harmonics out of Food and Beverages 24 Oct 201611 Apr 2021 By ABB. Customers expect their equipment to handle their products with care and avoid unnecessary shaking or vibrations. While this requirement is an obvious one for the food and beverages…