Any type of current flow creates a proportional magnetic field, and DC current transducers measure this generated field using Hall Effect technology. Hall Effect is defined as the generation of a magnetic field perpendicular to the current and a voltage difference across an electrical conductor transverse to an electrical current in the conductor. This article discusses how Hall Effect devices work, their limitations, and how they can be improved.
Industrial automation is a great way for businesses to cut down their operations costs. By allowing machines to complete menial tasks on their own, without supervision, and with a high degree of reliability, automation eliminates the various costs associated with retaining a worker to do the same thing—including labor, human resources, and damages for unintended errors.
With the negative effects of climate change—stronger storms, colder winters, hotter summers—becoming more and more visible, the utilization of renewable energy sources is becoming more and more commonplace. In Germany, for example, solar energy has become one of the top sources of electricity in the country.
When measuring or monitoring the amount of current passing through a transmission line, an ammeter—a device that measures electric currents—is connected to the primary conductor (transmission line) via a current transformer (CT). A CT reduces the amount of current flowing through the primary conductor to protect the measuring instrument. The CT, in turn, is connected to the measuring instrument via a secondary winding.
You’ve probably seen one of those hollow circular devices that enclose transmission lines and are connected by smaller wires to an electrical measuring device, particularly an ammeter. This device, known as a current transformer or current sensor, protects ammeters from power overload by reducing dangerous amounts of current flowing through a power line to more tolerable levels as it enters the measuring device.
When it comes to electric power transmission, high-voltage direct current (HVDC) systems are not used frequently. These systems only become ideal when the power has to run underground, underwater, or around hundreds of miles above ground. The extensive length of the bulk transmission implies the need for enough technologies to make sure that power lines and terminals are safe and efficiently working.
Transducers work by measuring energy (usually electrical) found in a system, and converting this into another energy form, such as sound. In many applications, several transducers are needed to achieve the desired results.
The power usage of major businesses is often high and the accompanying expense is equally astronomical. Having accurate data on how much electricity is consumed can give you ideas on how to create opportunities for savings.
It goes without saying that a current sensor, regardless if it’s a split core or solid core, has to be very accurate. This can be achieved either by having core built with high-quality, expensive materials and manufacturing processes; or by getting a device that is easy enough to calibrate on various kinds of electrical measurement systems.
Living in Hawaii has many perks, the great weather and the numerous beaches chief among them. There’s one thing that residents of the Aloha State aren’t so thrilled about, however: the high electricity costs, which, by some estimations, is three times higher than the national average.
