Modbus is one of the first and probably one of the most popular systems in use today for creating an intelligent system for controlling electrical devices. Developed in 1979, Modbus is a serial communications system that allows facility managers to control a number of devices from one centralized location using a series of predefined commands. This system not only allows for centralized control, but also better monitoring or device performance in order to provide more economical energy usage.
Ask any electrical professional what the most important piece of equipment he or she carries and the answer you will almost certainly receive is their current sensor. There are different current sensors for DC current and for AC current, and this article will focus on the technology used for accurately assessing AC currents.
A current transformer is a device that is designed to create an alternating current from a direct current. The device will measure the direct current in its primary winding and convert it to a proportional alternating current in its secondary winding. They are used to reduce a high voltage current into a much smaller and easier to manage current that can be easily monitored.
Building automation is one way that corporations are not only saving money when it comes to operating their various facilities, but reducing their carbon footprints. So, how does building automation help companies save money by reducing energy consumption? The key lies in the use of BACnet.
If you’re looking at current transformers, you have two main options: split-core transformers and solid-core transformers. A contactless, split-core transformer’s claim to fame is its ability to be snapped over pre-existing wires, making them ideal for retrofitting projects and more
When it comes to current sensors, you have two main options: open loop or closed loop. Open loop current sensors can measure either AC or DC current and offer you electrical isolation between the circuit you are trying to measure and the output of the sensor in order to provide you with a more accurate measurement. In addition, they tend to be less expensive than their closed loop counterparts. Electricians and engineers prefer to use open loop current sensors in a battery powered circuit because they have a low power requirement to operate.
When it comes to reducing the power demands of the your building, one of the easiest ways to do it is to increase the load carrying capabilities of the existing circuits in your system while reducing power system losses. This can be done through a process known as power factor reduction. Here’s what you need to know about power factor reduction.
There are a number of different types of current transformers available on the market today to deal with the various applications they are needed for. One of the configurations that is commonly seen needs a split core transformer. You will likely find split core transformers used in harsh environments or inaccessible places where monitoring of electrical current is needed. Split core transformers are used because their installation is uncomplicated and straightforward. A split core transformer is a hinged device that will snap open and closed over a conduit or conductor. No need for complex wiring installation or lots of screws and brackets to hold something to the conductor.
The benefits of flexibility for a current transformer are pretty easy to identify. Flexibility means that you can put the current transformer capability in different configurations as needed to deal with hard to reach places and mechanics. A flexible current transformer will do the job when it is important to get into those spaces that would otherwise be impossible to get to.
When considering what it takes to correctly and safely work with electricity, it is important to understand some of the common components frequently used. A good example is a current sensor. In the most basic terms, a current sensor is a device that finds electric current normally passing through an electrical wire, and subsequently produces a signal of some kind that is proportional to the current it has detected.
