HYDROELECTRIC POWER

Hydroelectric power plants are a very important source of energy. Enormous amounts of energy can be harnessed and converted into electricity because of large volumes of water that flow at high velocity, especially when a dam has been created to increase the height of water fall . Hydroelectric power plants have been installed all over the world and have successfully delivered energy in the form of electricity to countless millions of people. 


      




Some of us might never of noticed the huge Penstock pipes  (which can sometimes be several meters or feet in diameter)  containing high velocity water that rotates a water turbine connected to the rotor/ electricity generator which uses a trusted method of magnets/copper wire to produce electricity which is then sent through step up voltage devices for transmission along power lines.

There are also those interested in finding better ways to harness power from their smaller streams on private property and it has now become a pastime for certain individuals to look for the most efficient and also cost effective ways of producing home hydroelectricity as can be seen in the next media presentation.



     


Maybe at this point it would be prudent to introduce anyone who is interested in hydroelectricity or electricity in general to how we are to understand V, I and R i.e. voltage, current and resistance. When we are testing our theories and products we will definitely need something called a MultiMeter. Without this Meter we are blind because we cannot really see electricity. We have to measure it and collect the data. We need a multimeter to measure and what we end up with is Meter Data. The following media presentation will hopefully broaden our understanding of electrical measurement.



     


All multimeters have two probes and analog multimeters have been used by engineers and technicians even  before we were born. One of the differences we find today in more advanced models  of multimeter related instruments  is the ability to record data which is actually the Meter Data. These advanced multimeters can also be used to troubleshoot networks. Instead of having to record data and trends by using a pencil/pen and notepad it is possible to store all the meter data from the different points being and analyzed and build tables or plot graphs to troubleshoot electrical happenings over time periods.  Meter and sensor data from different parts of a plant can also be fed to a form of distributed control system in a power plant control room. The media presentation below shows how standard multimeters work but it is also important to remember that hydroelectric plants have other devices performing the same measurements but at the same continually recording and analyzing data to optimize power systems and to carry out something called preventative maintenance.

Manufacturers and suppliers of electricity metering products offer both fixed and portable types of measurement devices including sequential event recorders, paperless chart recorders and programmable logic controllers with displays that have replaced many of the older types of alarm annunciators. There is continual development in newer electrical measurement devices and their data storage, data retrieval , data analysis and intelligent control capabilities.