Search

Monthly Archive for: «August, 2011»

Page 1 of 212

Bus protection – Overcurrent differential

When selecting relays for bus protection, a major concern is the ability of the protective relaying scheme to restrain from tripping for close-in line faults. Tripping for bus faults, the… Read more

Aug 31, 2011 | Edvard

How to save electrical energy at home

In our home we use lot of electrical equipment like TV, Freeze, Washing machine, Mp3 player, music system, computer laptop. But we have not adequate knowledge for how to use… Read more

Aug 23, 2011 | jiguparmar

How to save Electrical energy at Home

Capacitor protection by surge arresters – ABB

Generally speaking, capacitor protection by surge arresters has been a difficult task before ZnO arresters became available. The high discharge currents and possible energies associated with an arrester operation at… Read more

Aug 22, 2011 | Edvard

Capacitor protection by surge arresters

Autotransformers in few words

It is possible to obtain transformer action by means of a single coil, provided that there is a “tap connection” somewhere along the winding. Transformers having only one winding are… Read more

Aug 19, 2011 | Edvard

Autotransformers in few words

Budgeting and Financing Substation

The construction of new substations and the expansion of existing facilities are commonplace projects in electric utilities. However, due to the complexity, very few utility employees are familiar with the… Read more

Aug 16, 2011 | Edvard

Budgeting and Financing Substation
Page 1 of 212