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Archive: Category «Transmission and Distribution»

High Voltage

Reducing Distribution Line Losses

One of the main benefits of applying capacitors is that they can reduce distribution line losses. Losses come from current through the resistance of conductors. Some of that current transmits… Read more

Jun 19, 2012 | By Edvard Csanyi

Reducing Distribution Line Losses
Transmission and Distribution

Sag and tension of transmission and distribution lines

The energized conductors of transmission and distribution lines must be placed to totally eliminate the possibility of injury to people. Overhead conductors, however, elongate with time, temperature, and tension, thereby… Read more

Jun 17, 2012 | By Edvard Csanyi

Sag and tension of transmission and distribution lines
High Voltage

How HV transmission lines affects humans and plants?

By increasing population of the world, towns are expanding, many buildings construct near high voltage overhead power transmission lines. The increase of power demand has increased the need for transmitting… Read more

Mar 20, 2012 | By jiguparmar

How HV transmission lines affects humans and plants?
High Voltage

Using HVDC Technology For Transmitting Electricity

An alternate means of transmitting electricity is to use high-voltage direct current (HVDC) technology. As the name implies, HVDC uses direct current to transmit power. Direct current facilities are connected… Read more

Mar 05, 2012 | By Edvard Csanyi

Using HVDC Technology For Transmitting Electricity
Electrical Lectures

Types of neutral earthing in power distribution (part 2)

Resistance grounding has been used in three-phase industrial applications for many years and it resolves many of the problems associated with solidly grounded and ungrounded systems. Resistance Grounding Systems limits… Read more

Feb 09, 2012 | By jiguparmar

Low voltage switchgear - Power distribution
Energy and Power

Flexible AC Transmission System – What and Why?

Flexible AC Transmission System (FACTS) have been evolving to a mature technology with high power rating. This technology has wide spread application, became a top rate, most reliable one, based… Read more

Dec 05, 2011 | By Edvard Csanyi

Flexible AC Transmission System - What and Why?
Transmission and Distribution

What is the reason beyond three phase transmission?

As the need for increased transmission line capacity have forced power utility and owner to maximize power density in existing transmission corridors.  Many experienced have already been done on this,… Read more

Nov 28, 2011 | By Edvard Csanyi

Three-phase electric power systems
High Voltage

North American versus European distribution systems

Distribution systems around the world have evolved into different forms. The two main designs are North American and European. For both forms, hardware is much the same: conductors, cables, insulators,… Read more

Nov 17, 2011 | By Edvard Csanyi

North American versus European distribution systems

Understanding Underground Electric Transmission Cables

Underground cables have different technical requirements than overhead lines and have different environmental impacts. Due to their different physical, environmental, and construction needs, underground transmission generally costs more and may… Read more

Sep 21, 2011 | By Bipul Raman

Underground XLPE cables left to right: 345 kV, 138 kV, 69 kV, and distribution
High Voltage

Gas-Insulated Transmission Line – GIL

The gas-insulated transmission line (GIL) is a system for the transmission of electricity at high power ratings over long distances. In cases where overhead lines are not possible, the GIL… Read more

Jan 12, 2011 | By Edvard Csanyi

Gas-Insulated Transmission Line - GIL
High Voltage

Basics Of Subtransmission Systems

Subtransmission systems are those circuits that supply distribution substations. Several different subtransmission systems can supply distribution substations. Common subtransmission voltages include 34.5, 69, 115, and 138 kV. Higher voltage subtransmission… Read more

Dec 17, 2010 | By Edvard Csanyi

Transmission Lines
Energy and Power

Historical Review of Power System Stability Problems

As electric power systems have evolved over the last century, different forms of instability have emerged as being important during different periods. The methods of analysis and resolution of stability… Read more

Dec 08, 2010 | By Edvard Csanyi

Historical Review of Power System
Energy and Power

Power System Stability

Power system stability is the ability of the system, for a given initial operating condition, to regain a normal state of equilibrium after being subjected to a disturbance. Stability is… Read more

Oct 23, 2010 | By Edvard Csanyi


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