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How much does it cost to build a wind energy converter?
£10,234 to be exact.
What are some disadvantages of the pelamis wave energy converter?
advantages —Low cost of investment is less —It also displace above 2000 carbon dioxide emissions tons per year. —Avoids pollution —The Pelamis has a similar output to a modern wind turbine. —When complete, the project should meet the average electricity demand of more than 15,000 Portuguese households. —There is going to be only starting investment. —Minimum environmental impact. —Plenty of space plus high 'power-density'. —Survivability - 100 year wave —100% available technology —Hydraulic Power Take Off —Power smoothing —Tunable —Maximum site flexibility —Minimum work on-site —Off-site maintenance dis advantages · Disturbance or destruction of marine life (including changes in the distribution and types of marine life near the shore) · Possible threat to navigation from collisions due to the low profile of the wave energy devices above the water, making them undetectable either by direct sighting or by radar. Also possible is the interference of mooring and anchorage lines with commercial and sport-fishing. · Degradation of scenic ocean front views from wave energy devices located near or on the shore, and from onshore overhead electric transmission lines
What is semi converter?
Semi-converter is an electronic circuit in which the rectification is done with the help of controled rectifiers and diodes. Had doides been not used and instead if we use all four tyristors, then the converter will become a full converter. Semi converter saves the cost by introduction of two diodes replacing two tyristors out of total four. Farhan <a href="http://www.bitsbyta.com">Visit Bitsbyta.com</a>
What is Quasi Square wave or Modified Square wave Inverters?
Quasi Square Wave or Modified Square Wave actually mean the same thing. Modified square wave is the actual wave form. Quasi Square Wave is a marketing term used by many low cost inverter manufactures. Inverters convert Direct Current DC to Alternating Current AC. Old obsolete inverter technology created square wave output. As stated by the name the wave form is square not sinus as required to have pure sine wave AC. Modified square wave has a step or dead space between the square waves. This reduces the distortion or harmonics that causes problems with electrical devices. Modified Square Wave inverters will work fine for pure resistive loads, like lamps or heaters. It will also work well with pure inductive loads, like universal motors in mixers and blenders. If these devices have electronic speed control this could be damaged. Devices that have transformers in their power supplies, Microwave Ovens, TVs, Computers etc. will run hotter and less efficient. These devices will not last as long as the would on pure sine wave inverters. For the money the modified square wave inverter will cost more in the long run by reduced efficiency and possible damage to appliances. I highly recommend that you use a pure wave inverter it will cost less by increased efficiency, problems and possible damage to your appliances.
Why wave trap in switchyard either in one phase or in two phases why you not use wave trap in three phases?
Most of the time I see wavetraps on single phases. A wave trap is simply a low pass or band block filter. It is used to block the transmission of carrier waves from propogating beyond where they are desired. Usually these carrier waves are injected onto a single phase for each application, but there is nothing stopping someone from injecting on two or all three, other than the additional cost of injection equipment (additional cost that does not provide much benefit, I might add). The coupling in three phase lines will cause some of the signal injected on one phase to show up on the other two, but it is usually not enough to justify wave traps on these other phases. So the answer is it isn't needed.
