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Monthly Archive for: «April, 2011»

Power Substation

Electrical substation introduction and elements

An power substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high or medium to low or the reverse using transformers…. Read more

Apr 29, 2011 | By Edvard

Electrical substation introduction and elements
Solar Power

Overview of solar panel types

There are three common technologies used in solar panels, all of which are based on the common element silicon, which makes up a large proportion of the earth. Monocrystalline cells… Read more

Apr 25, 2011 | By Edvard

Energy and Power

Change output voltage of transformer with taps

Most power transformers have taps on either primary or secondary windings to vary the number of turns and, thus, the output voltage. The percentage of voltage change, above or below… Read more

Apr 20, 2011 | By Edvard

Change output voltage of transformer with taps
Maintenance

Maintenance Of Meduim Voltage Circuit Breakers

Medium-voltage circuit breakers rated between 1 and 72 kV may be assembled into metal-enclosed switchgear line ups for indoor use, or may be individual components installed outdoors in a substation…. Read more

Apr 17, 2011 | By Edvard

Maintenance Of Meduim Voltage Circuit Breakers
Energy Efficiency

KNX automation makes buildings more efficient

In light of climate change and increasingly scarce resources, the energy-efficient operation of buildings is gaining in importance. Essential requirements for this are an energy-efficient architectural design, an insulated building… Read more

Apr 15, 2011 | By Edvard

KNX automation makes buildings more efficient
Electric Motor

VSD – Power supply connections and earthing

In accordance with accepted practice and the local, power is normally provided to a VSD from a distribution board (DB) or a motor control center (MCC). Adequate arrangements should be… Read more

Apr 13, 2011 | By Edvard

VSD - Power supply connections and earthing
Energy and Power

Scientist and inventor – Mihailo Pupin

Mihailo (Mihailo Idvorsky) Pupin was born in Idvor, Banat, October 9, 1854. Received his academic education at Columbia College, New York, and his scientific education at the universities of Cambridge,… Read more

Apr 11, 2011 | By Edvard

Dr. Mihajlo Pupin (1854-1935), inventor and scientist
Energy and Power

Switchboard Construction Basics For Engineers

Power distribution systems are used in every residential, commercial, and industrial building to safely control the distribution of electrical power throughout the facility. Most of us are familiar with the… Read more

Apr 09, 2011 | By Edvard

Switchboard Construction - Siemens Basics
High Voltage

HGI generator circuit breaker – ABB

The circuit-breakers type HGI can be used as generator circuit-breaker in all types of power plants with unit sizes between 60 – 180 MVA and nominal voltages up to 21kV…. Read more

Apr 05, 2011 | By Edvard

ABB Generator Circuit-Breakers Type HGI
Renewable Energy

Are renewable resources practical?

While few people disagree that renewable energy is a good idea, most also recognize there are two practical barriers to implementation on a wide scale. First, all renewable energy sources,… Read more

Apr 01, 2011 | By Edvard

Are renewable resources practical?


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