Category: Power Systems
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How does diesel engine generate electricity?
What is power plant? A power plant is a facility that converts the energy of fuels into electricity. The term power plant is often used to refer to a coal-fired, nuclear, natural gas, or oil-fired electric generating station. Power plants are typically large industrial facilities that provide enough electricity to supply an industrial town or…
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Data Acquisition and Telemetering in Power Systems
To be able to manage and control a power system, the network engineer requires reliable and current information about the state of the network. He obtains this information from power flows, bus voltages, frequency and load levels along with the position of circuit breakers and isolators, the source of these data being in the power…
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Supervisory Control and Data Acquisition in Power Systems
The term supervisory control and data acquisition (SCADA) refers to the network of computer processors that provide control and monitoring of remote electrical or mechanical operation e.g. management of power distribution grid or the control of mechanical processes in a manufacturing plant. Typical the old SCADA systems would encompass computers and network links that manage…
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A Detailed Note on the Benefits and Working of Automatic Voltage Controllers
Automatic voltage Controllers hold a regular voltage level to electrical tools loads that require a steady, dependable voltage supply. With a range of voltage regulation equipment to select from, it can be difficult to pick the excellent one for your tool loads. It is indispensable to be aware of what to look for in an…
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Key Factors to Consider In Substation Design
Substations are the points in the power network where transmission lines and distribution feeders are connected together through circuit breakers or switches via busbars and transformers. This permits the control of power flows in the network and the normal switching operations for maintenance purposes. We discuss the key factors to consider when designing substations as…
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Types of Insulators used in Power Systems
We have various types of overhead line and substation insulators. Generally they can be classified as: Post Insulators The post insulators comprise of pedestal posts and solid core cylindrical types. Pedestal post insulators The pedestal post insulator stacks employed in substations are available as single units with a range of lighting impulses withstand ratings (LIW)…
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How Ground Fault Interrupter (GFI) is used as a Safety Device
The function of a ground fault interrupter (GFI) is to disconnect the power if a current leakage to ground is detected. GFI is also termed to as Ground fault circuit interrupter (GFCI). We have two types of ground fault interrupters: those designed for life protection and those designed for equipment protection. GFI used for life…
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Single-phase and Three-phase Power Systems
Single-phase Power System To help us understand single-phase power system, consider the sine wave shown in figure 1(a) below of a 120 Vac single-phase power connected to a plug. We know very well that, voltage is the difference in potential between two points. Therefore the sine wave in figure 1(a) shows only the voltage difference…