Author name: Engr. Aneel Kumar

The currents flowing in the power system network during a fault is dependent on the machines connected to the system. Due to the effect of armature current on the flux that generates the voltage, the currents flowing in a synchronous machine differs immediately after the occurrence of the fault, a few cycles later, and under […]

The fault analysis of a power system is required in order to provide information for the selection of switch-gear, setting of relays and stability of system operation. A power system is not static but changes during operation (switching on or off of generators and transmission lines) and during planning (addition of generators and transmission lines).

CLR is a well-known fault current limiting technique. Compared with many other methods, it is more economical. In addition its effect on the reliability of substation is negligible. However, it occupies a relatively large area in the substation, due to safety considerations. More- over, it may degrade both voltage stability and transient stability of the

Following are some techniques using for limitation of short circuit current. 1. CURRENT LIMITING REACTORS CLR is a well-known fault current limiting technique. Compared with many other methods, it is more economical. In addition its effect on the reliability of substation is negligible. However, it occupies a relatively large area in the substation, due to

Electrical engineering is the historical name for what is now called electrical, electronics, and computer engineering. Originating in the 19th century with the development of electric power and the advent of telephone and wireless communications, electrical engineering continues to have lasting impact not only on technology and the engineering profession, but on all of society.

Electrical energy consumption is the electrical energy use by all the various loads on the power system. Consumption also includes the energy used to transport and deliver the energy. For example, the losses due to heating conductors in power lines, transformers, and so on is considered consumption. Electricity is consumed and measured in several different

Source and linear circuit elements are ideal circuit elements. One central notion of circuit theory is combining the ideal elements to describe how physical elements operate in the real world. For example, the 1 k resistor you can hold in your hand is not exactly an ideal 1 k resistor. First of all, physical devices

Discrete-time signals are functions defined on the integers; they are sequences. One of the fundamental results of signal theory will detail conditions under which an analog signal can be converted into a discrete-time one and retrieved without error. This result is important because discrete-time signals can be manipulated by systems instantiated as computer programs. Subsequent

The basic idea of communication engineering is to use a signal’s parameters to represent either real numbers or other signals. The technical term is to modulate the carrier signal’s parameters to transmit information from one place to another. To explore the notion of modulation, we can send a real number (today’s temperature, for example) by

A major application of electric energy is in its conversion to mechanical energy. Electromagnetic, or “EM” devices designed for this purpose are commonly called “motors.” Actually the machine is the central component of an integrated system consisting of the source, controller, motor, and load. For specialized applications, the system may be, and frequently is, designed