Definition: The word 'static' corresponds to something which undergoes no change or is fixed and a 'switch' is used for the purpose of making or breaking a connection in an electric circuit. The static switch is a device which executes switching operation without the presence of moving parts. Generally, the power semiconductor devices that hold the ability to get turned ON or OFF within a fraction of microseconds, find application as fast-acting static switches. In low power applications, … [Read more...] about Static Switch
Types of Power Electronic Converters
Power electronic converters are classified into four major categories. Out of the four major categories, two are further classified. A power electronic system may have one or more power electronic converters. Here in this content, we will discuss each type of power converter in brief. The power semiconductor devices that constitute the power converter exhibit switching characteristics to shape the input power of one form to an output power of some other form. Introduction Power Converters … [Read more...] about Types of Power Electronic Converters
Power Electronics
Definition: A study that utilizes electronic power devices from converting one form of electric power into another form of electric power with proper control is known as Power Electronics. Basically, in power electronics, solid-state electronics, is used that performs the action of control and convert of the electric power. Power Electronics is regarded as an important subfield of electrical and electronics engineering. The pictorial representation given below provides an idea about the … [Read more...] about Power Electronics
Band Stop Filter
Definition: The type of filters that are designed to block or highly attenuate a specific band of frequencies is known band stop filter. It is sometimes known as band reject or band eliminate filter. A more common name for these filters is Notch Filter. It is a second-order filter that has two cut-off frequencies. Band reject filters are formed by utilizing the characteristics of high pass and low pass filters. What are Filters in Electronics? Filters serve as crucial components of the … [Read more...] about Band Stop Filter
Phase Difference in AC Circuits
Phase Difference is defined as the delay between two or more alternating quantities while attaining the maxima or zero-crossings giving rise to the difference in their phases. This difference in two waves is measured in degrees or radians and is also known as phase shift. It is sometimes defined as the difference between two or more sinusoidal waveforms in consideration with a reference axis. It is denoted by φ and corresponds to the shift in the waveform along the horizontal axis from a … [Read more...] about Phase Difference in AC Circuits
Solid State Relay (SSR)
Solid State Relay also known as Solid State Switch is an electronic device used for switching the load on and off when the external supply voltage is provided across the input terminals of the device. It is abbreviated as SSR. These are basically semiconductor devices used to control the load thus these devices use electrical properties of solid-state semiconductors like transistors, MOSFET, TRIAC, etc. to execute input and output switching operations. What are Relays? Relay is basically a … [Read more...] about Solid State Relay (SSR)
Human-Machine Interface (HMI) in SCADA
Human-Machine Interface abbreviated as HMI is a user interface which is a combination of hardware and software that permits easy interaction between human and machine. Thus, it is named so. The main purpose of establishing such an interaction between humans and machines is to control and monitor the processes ongoing at the remote locations without physically being present at that particular location. The human-machine interface is a crucial component of automated industrial processes and … [Read more...] about Human-Machine Interface (HMI) in SCADA
Intelligent Electronic Devices (IED) in SCADA
Intelligent Electronic Devices abbreviated as IED is defined as devices that have single or multiple microprocessors integrated within it. Its main purpose involves the transmission or reception of data or control signals to or from an external device. The external device in consideration with the whole system can be transducers, relays, control units, etc. IEDs are regarded as a key part of industrial control systems used for the purpose of advanced power automation. Thus, is useful in … [Read more...] about Intelligent Electronic Devices (IED) in SCADA
Remote Terminal Unit (RTU) in SCADA
Definition: Remote Terminal Unit (RTU) in SCADA systems is a microprocessor-based electronic device present at geographically distributed remote locations in order to facilitate communication of various devices within the distributed SCADA system. It consists of input-output hardware and communication interface for remote sensing and controlling of ongoing processes. The sole purpose of an RTU present at the remote site of the SCADA system is to send all the collected data and information to … [Read more...] about Remote Terminal Unit (RTU) in SCADA
SCADA System Architecture
In the previous article, we have discussed the basics of the SCADA system. SCADA stands for Supervisory Control and Data Acquisition system which is used for the purpose of controlling the processes that are geographically distributed. Generally, the overall SCADA system performs under the control of centralized software and hardware combination. In this article, we will discuss the architectural design of SCADA systems. Now a day most of the SCADA systems are based on a distributed … [Read more...] about SCADA System Architecture