Power Substation
Arriving at the scene of a substation fire. What should you do first?
Power substations contain transformers, large quantities of oil, energized electrical equipment and, in some cases, cylinders of compressed gas. Some of the oil may contain polychlorinated biphenyls (PCBs). On arriving at… Read more
Jun 23, 2014 | By Edvard Csanyi
Medium Voltage
The role of medium voltage switchgear in power system
Most electrical appliances used in household, commercial and industrial applications work with low voltage. High voltage is used not only to transmit electrical energy over very large distances, but also… Read more
May 23, 2014 | By Edvard Csanyi
Maintenance
An example of calculating transformer size and voltage drop due to starting of large motor
Let’s calculate voltage drop in transformer 1000KVA, 11/0.480 kV, impedance 5.75% due to starting of 300 kW, 460V, 0.8 power factor, motor code D (kva/hp). Motor starts 2 times per hour… Read more
May 12, 2014 | By jiguparmar
Transmission and Distribution
9 typical issues addressed in a T&D network planning project
Transmission and distribution network planning projects are highly individual, because in each case the special conditions of the supply area, load demand and geographic distribution, technical standards and requirements, current… Read more
May 02, 2014 | By Edvard Csanyi
High Voltage
An example of calculating the technical losses of T&D lines
There are two types of losses in transmission and distribution line. Technical Losses and Commercial Losses. It’s necessary to calculate technical and commercial losses. Normally technical losses and commercial losses… Read more
Apr 25, 2014 | By jiguparmar
Transmission and Distribution
How Best to Spend $450 Billion on Power Grid
Today’s power grid is suffering from a backlog in capital investment. While electrical power demand surged over recent years, electrical industry restructuring left utilities in a state of suspended animation…. Read more
Apr 23, 2014 | By Edvard Csanyi
Transmission and Distribution
5 technologies to boost efficiency in the T&D system
One example of efficiency measures aimed primarily at the utilities that operate the T&D system is an initiative underway at the US Department of Energy to implement new efficiency standards… Read more
Apr 18, 2014 | By Edvard Csanyi
Transmission and Distribution
3 awesome HVDC projects in Australia you should know about
Modern HVDC systems combines the good experience of the old installations with recently developed technologies and materials. The result is a very competitive, flexible and efficient way of transmitting electrical… Read more
Apr 16, 2014 | By Edvard Csanyi
High Voltage
Hey Mom, look at that big HVDC Transformer!
HVDC transformers are key components of HVDC stations. HVDC converter and inverter stations terminate long-distance DC transmission lines or DC sea cables. This type of transformer provides the interface between… Read more
Mar 19, 2014 | By Edvard Csanyi
Power Substation
How To Locate Current Transformers in HV Substation
Current transformers are used for protection, instrumentation, metering and control. It is only the first function that has any bearing on the location of the current transformer. Ideally the current transformers… Read more
Mar 14, 2014 | By Edvard Csanyi
High Voltage
8 main disadvantages of HVDC transmission
Few weeks back I posted an article about advantages of HVDC over HVAC transmission systems. Advantages of HVDC are numerous and very well recognized, but like everything on this earth… Read more
Jan 10, 2014 | By Edvard Csanyi
Transformers
Large power transformer tailored to customers’ specifications
An LPT (Large Power Transformer) is a large, custom-built piece of equipment that is a critical component of the bulk transmission grid. Because LPTs are very expensive and tailored to… Read more
Dec 30, 2013 | By Edvard Csanyi
Smart Grid
Comparison of major power grid failures in US and around the world (2)
Continued from first part: Comparison of major grid failures in United States and around the world (part 1) On the International side, about 1/5 of the power outages (9 of… Read more
Dec 27, 2013 | By Edvard Csanyi
Smart Grid
Comparison of major power grid failures in US and around the world (1)
The creation and delivery of power is one basic infrastructure expected by all modern industrial societies. Power distribution basics started in the US in the early 1900s when the first… Read more
Dec 25, 2013 | By Edvard Csanyi
Transmission and Distribution
An overview of South Africa’s energy sector with emphasis on increased demands
Electricity provision involves three phases: generation, transmission and distribution. Generation is the process by which electricity is produced; transmission is the transportation of electricity that has been generated in power… Read more
Dec 20, 2013 | By Edvard Csanyi
