High Voltage
Construction and service life of GIS
GIS is assembled of standard equipment modules (circuit breaker, current transformers, voltage transformers, disconnect and ground switches, interconnecting bus, surge arresters, and connections to the rest of the electric power system) to match the electrical one-line diagram of the substation…. Read more
Jun 04, 2011 | By Edvard Csanyi
Hydropower
How to determine the hydropower available at site
To determine the power available at a site, head and flow measurements must be taken. Flow is the rate at which water moves, measured in liters per minute (I/m) or gallons per minute (gpm). This can be measured by channeling… Read more
Jun 03, 2011 | By Edvard Csanyi
Energy and Power
How contactor controls an electric motor?
When a relay is used to switch a large amount of electrical power through its contacts, it is designated by a special name: contactor. Contactors typically have multiple contacts, and those contacts are usually (but not always) normally-open, so that… Read more
Jun 01, 2011 | By Edvard Csanyi
