The Tesla coil is one of Nikola Tesla’s most famous inventions. It is essentially a high-frequency air-core transformer. It takes the output from a 120vAC to several kilovolt transformer & driver circuit and steps it up to an extremely 200?C High Voltage Ceramic Chip Capacitor voltage. Voltages can get to be well above 1,000,000 volts and are discharged in the form of electrical arcs.
Van de Graaf generators generate static electricity, not very useful, but Tesla coils were originally developed for the wireless transmission of electricity. All you need is two Tesla coils one to transmit and one to receive the energy. I remember reading a story of a lab that had two Tesla coils across the room from each other and they were energizing one and the other had its terminals bonded. After energizing the one they noticed the other started to smoke and they realized that they were transmitting power wirelessly.
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Tesla himself got arcs up to 100,000,000 volts, but I don’t think that has been duplicated by anybody else. Tesla coils are unique in the fact that they create extremely powerful electrical fields. Large coils have been known to wirelessly light up florescent lights up to 50 feet away, and because of the fact that it is an electric field that goes directly into the light and doesn’t use the electrodes, even burned-out florescent lights will glow.
Electrons cannot easily pass directly across the dielectric from one plate of the capacitor to the other as the dielectric is carefully chosen so that it is a good insulator. When there is a current through a capacitor, electrons accumulate on one plate and electrons are removed from the other plate. This process is commonly called ‘charging’ the capacitor—even though the capacitor is at all times electrically neutral. In fact, the current through the capacitor results in the separation of electric charge, rather than the accumulation of electric charge. This separation of charge causes an electric field to develop between the plates of the capacitor giving rise to voltage across the plates.
The enter voltage source may have an extensive variety of voltage qualities. Air conditioning wellsprings of 50Hz to 400Hz at under 24Vac to 480Vac are regular. DC sources going from 5Vdc to 300Vdc can likewise be found. It is basic for the client to comprehend the data voltage necessity as this will affect general framework utilize and plan. Administrative offices, for example, Underwriters Laboratory, Canadian Standards Association, IEC and others are profoundly included with any circuits joined with the force framework. Notwithstanding is controlling the fundamental inverter circuits of the force supply; the data voltage source is additionally used to power helper control circuits and other auxiliary force necessities. The data channel stage gives molding of the information voltage source. This molding is for the most part as amendment and sifting in air conditioning sources, and extra separating in dc sources. Over-burden assurance, EMI, EMC and observing circuits can likewise be found. The yield of the data channel is ordinarily a dc voltage source.
High voltage capacitors should be stored with the terminals shorted, since temporarily discharged capacitors can develop potentially dangerous voltages when the terminals are left open circuited. Large oil filled old capacitors must be disposed of properly as some contain polychlorinated biphenyls PCBs. It is known that waste PCBs can leak into groundwater under landfills. If consumed by drinking contaminated water, PCBs are carcinogenic, even in very tiny amounts. If the capacitor is physically large it is more likely to be dangerous and may require precautions in addition to those described above. New electrical components are no longer produced with PCBs.
High voltage power supplies are a key part in electrostatic applications. An assortment of modern and experimental utilizations of high voltage power supplies are exhibited for the researcher, architect, specify and client of electrostatics. Modern procedures, for instance, are also used in military power supply and oblige huge checking of operational conditions with a specific end goal to expand item yield, enhance quality, and lessen the cost. New advances in force supply innovation give more elevated amounts of checking and procedure control. Investigative tests can likewise be impacted by force supply impacts. Contributing impacts, for example, yield exactness, security, swell, and regulation are examined.
Plating refers to covering a metal surface with a layer of another metal or alloy that has some inherent desired properties like corrosion resistant, resistance to wear and tear, heat resistant, lustrous and smooth finish etc. Different types of metal plating include plating with gold, plating with silver, plating with chromium, plating with zinc, plating with rhodium, plating with composite materials, plating with Cadmium, plating with nickel, plating with copper, plating with alloys etc. There are various methods used for plating. Coating non metals with metals is called metallizing.