Tag Archives | Power

Dynamic Voltage Restorer (DVR): Meaning and Configuration | Electricity

In this article we will discuss about:- 1. Meaning of DVR 2. Basic Configuration of DVR 3. DVR Characteristics 4. Equations 5. Operating Mode 6. Voltage Injection Methods. Contents: Meaning of DVR Basic Configuration of DVR  DVR Characteristics  Equations Related to DVR  Operating Mode of DVR Voltage Injection Methods of DVR 1. Meaning of DVR: Among the power quality problems [...]

By |2017-12-28T10:24:53+05:30December 28, 2017|Dynamic Voltage Restorer|Comments Off on Dynamic Voltage Restorer (DVR): Meaning and Configuration | Electricity

Flexible AC Transmission Systems: Objectives & Controllers | Electricity

In this article we will discuss about:- 1. Introduction to Flexible AC Transmission Systems 2. Concept and Objective of FACTS 3. General Symbols 4. Types of FACTS Controllers 5. Types of FACTS Compensators 6. Structure and Characteristics. Contents: Introduction to Flexible AC Transmission Systems Concept and Objective of FACTS General Symbols for FACTS Controllers Types of FACTS Controllers Types of [...]

By |2017-12-28T10:24:53+05:30December 28, 2017|Transmission Systems|Comments Off on Flexible AC Transmission Systems: Objectives & Controllers | Electricity

Flexible AC Transmission Systems: Objectives & Controllers | Electricity

In this article we will discuss about:- 1. Introduction to Flexible AC Transmission Systems 2. Concept and Objective of FACTS 3. General Symbols 4. Types of FACTS Controllers 5. Types of FACTS Compensators 6. Structure and Characteristics. Contents: Introduction to Flexible AC Transmission Systems Concept and Objective of FACTS General Symbols for FACTS Controllers Types of FACTS Controllers Types of [...]

By |2017-12-28T10:24:53+05:30December 28, 2017|Transmission Systems|Comments Off on Flexible AC Transmission Systems: Objectives & Controllers | Electricity

Unified Power Flow Controller: Modes and Control System | Electricity

In this article we will discuss about:- 1. Functional Control Mode of UPFC 2. Operating Modes of UPFC 3. Control System. Functional Control Mode of UPFC: i. Shunt Controller: a. Reactive (VAR) control side b. Automatic voltage control mode ii. Series Convector: a. Direct voltage injection mode b. Line impedance compensation mode c. Bus voltage regulation and control mode d. [...]

By |2017-12-28T10:24:53+05:30December 28, 2017|Power Flow|Comments Off on Unified Power Flow Controller: Modes and Control System | Electricity

Distributed Generation of Electric Power | Electrical Engineering

In this article we will discuss about:- 1. Introduction to Distributed Generation 2. Perspectives on Interconnection of Distributed Generation 3. Advantages 4. Disadvantages. Introduction to Distributed Generation: The distributed generation uses smaller-sized generators than does the typical central station plant. They are distributed throughout the power system closer to the loads. The normal distribution system delivers electric energy through wires [...]

By |2017-12-28T10:24:52+05:30December 28, 2017|Electric Power|Comments Off on Distributed Generation of Electric Power | Electrical Engineering

Working Voltage and Transmission of Power | Electrical Engineering

Before discussing the method of determination of the most economical working voltage for transmission of electrical power we will discuss here the advantages and limitations of high voltage transmission. The advantages of adopting high voltage for transmission are given below: (i) With the increase in transmission voltage the size of the conductor (area of x-section of the core carrying the [...]

By |2017-11-09T17:47:52+05:30November 9, 2017|Voltage|Comments Off on Working Voltage and Transmission of Power | Electrical Engineering

Necessity of Extra High Voltage (EHV) Transmission | Electricity

Modern trend is to use extra high voltage (EHV) and ultra-high voltage (UHV) for transmission of huge blocks of power over long distances. The reasons for adopting of EHV/UHV range for transmission purposes are given below: 1. Reduction of Electrical Losses, Increase in Transmission Efficiency, Improve­ment of Voltage Regulation and Reduction in Conductor Material Requirement: For transmission of given amount [...]

By |2017-11-09T17:47:47+05:30November 9, 2017|EHV Transmission|Comments Off on Necessity of Extra High Voltage (EHV) Transmission | Electricity

Problems Associated with EHV Transmission | Electricity

The major problems associated with EHV transmission are discussed below: Problem # 1. Corona Loss and Radio Interference: The corona is not only a source of power loss but it is also a source of interference with radio and television. The corona loss depends on various factors such as system frequency, system voltage, air conductivity, air density, conductor radius, conductor [...]

By |2017-11-09T17:47:47+05:30November 9, 2017|EHV Transmission|Comments Off on Problems Associated with EHV Transmission | Electricity

Limitations in EHV AC Power Transmission | Electricity

There are certain limitations in the transmission of power by EHV ac system. These limitations and design aspects are discussed below: 1. Stability Considerations: Power transferred is expressed as: if resistance and shunt leakance of the transmission line are neglected. For equal terminal voltages (i.e. VS = VR = V) Maximum steady state transfer of power takes place theoretically for [...]

By |2017-11-09T17:47:47+05:30November 9, 2017|EHV Transmission|Comments Off on Limitations in EHV AC Power Transmission | Electricity

High Voltage Direct Current (HVDC) Transmission | Electrical Engineering

In this article we will discuss about:- 1. Introduction to HVDC Transmission 2. Principle of HVDC Transmission 3. Power Control 4. Ground Return 5. Earth Electrode and Station Earth 6. Transient Overvoltages and Insulation Coordination 7. Corona 8. Circuit Breaking 9. Comparison with EHV-AC Transmission 10. Limitations. Contents: Introduction to HVDC Transmission Principle of HVDC Transmission Power Control in HVDC [...]

By |2017-11-09T17:47:47+05:30November 9, 2017|HVDC Transmission|Comments Off on High Voltage Direct Current (HVDC) Transmission | Electrical Engineering
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