Representing ETAP electrical engineering software and Real-Time systems. (OTI).
Representing numerous suppliers of leading edge hardware and software products, Applied Energy Solutions target our product offerings to the Utility, Engineering, Industrial, and Commercial markets. Applied Energy Solutions was incorporated in 2004 and has its head offices in Johannesburg, South Africa. We are the only Authorized ETAP Distributor in Southern Africa (Sole Distributor) for Operation
11/08/2011
In general, arcing current in systems below 15.0 kV will be less
than the 3-phase fault current because of arc impedance.
For buses with nominal kV in the range of 0.208 to 1.0 kV, use the following attached formula
10/08/2011
Beware: a standard breaker is only capable of interrupting a DC component (with its AC components super-imposed thereon) when the supply network has a time constant of no more than 45 milli-seconds and the breaker has first contact seperation at the minimum time that the manufacturer specifies. If, in your application where the supply network's time constant is greater than 45 milli-seconds, you then need to rate the breaker higher. I cannot over-stress this point for those using IEC62271-100 !!
03/08/2011
The ratio of zero-sequence to positive sequence impedance is show in this diagram for the most commonly applied transformer connections and earthing arrangements.
Beware: IEC60909 doesn't calculate the dc and ac decays on unbalanced faults, such as line-to-line-to-ground faults. This is usually not too serious, except when the the single-line-to-gound fault level is higher than the three-phase symmetrical fault level!
01/08/2011
One of the World's Largest Wind Farms Takes Advantage of ETAP Power System Monitoring, Predictive Simulation and Event Playback
ETAP Press Release | Colorado Green Wind Power Project | One of the World’s Largest Wind Farms Goes. Operation Technology, Inc. (OTI), developer of ETAP enterprise solution for electrical power systems, has gifted their ETAP software to the University of Tennessee Chattanooga College of Engineering and Computer Science department to be used in the new ETAP-TVA Power Simulation Lab.
Applied Energy Solutions Representing numerous suppliers of leading edge hardware and software products, Applied Energy Solutions target our product offerings to the Utility, Engineering, Industrial, and Commercial markets. Applied Energy Solutions was incorporated in 2004 and has its head offices in Johannesburg, South Afr
Watch this space ... we're loading some awesom training videos on harmonics and transient stability.
AES joins the Facebook family .....
Applied Energy Solutions / ETAP South Africa Representing ETAP electrical engineering software and Real-Time systems.
01/08/2011