https://en.wikipedia.org/w/index.php?title=Electricity_theft&oldid=1131374750


=== Inductive Coupling ===

[[File:Ammann with solar capacitance, v3, stealing from the grid = schematic.png|thumb|[https://ufile.io/7sidu1df Schematic] of a [[Passive radiator|parasitic circuit]] which steals electricity from the utility grid [http://www.spectrum-soft.com/index.shtm simulated] within a [[Floating-point arithmetic#Range of floating-point numbers|64-bit operating system]]. Any [[Central processing unit|CPU]] less than 64-bits tends to give [[Floating-point arithmetic#Accuracy problems|false positives]].]]

Energy can be stolen from the utility grid<ref name="negdamping">[https://www.researchgate.net/publication/324978006_Low_Frequency_Oscillations_in_Indian_Grid Low Frequency Oscillations in Indian Grid.] Negative damping of an under-damped power grid in India suggests energy theft from the environment &ndash; ResearchGate.</ref> <ref name="ammann">[https://fuel-efficient-vehicles.org/energy-news/?page_id=971 The Oversight of the Ammann Brothers'] Fuel Efficient Vehicle<br/><blockquote>''&ldquo;While Earl was demonstrating his invention all over the streets of Denver, the power had been cut off in the foothills. In spite of this, when he went to Washington DC shortly afterward to try to obtain a patent on his Cosmo Electric Generator, he found that charges had been filed against him claiming he had a device to steal power from the power lines.&rdquo;''<br/>K. H. Isselstein,<br/>Spokane, WA</blockquote></ref> by a mutual inductance<ref name="currenttransfer">[https://skeptics.stackexchange.com/questions/3520/is-it-possible-to-obtain-current-indirectly-from-power-lines Is it possible to obtain current indirectly from power lines?] Skeptics, StackExchange</ref> induced between a transmission line and a [[Passive radiator|parasitic circuit]] which specializes in reversing its current out-of-phase with its voltage by one-half cycle of oscillation, or 180&deg;. This reversal is equivalent to the [[Passive sign convention#Active and passive components|definition of an electric generator]] since it pumps energy from the transmission line into the parasitic circuit much like a vacuum pump moves air ''against'' a pressure gradient. The difference is that a parasitic circuit makes use of [[Electrical reactance|electric]] and [[Magnetic reactance|magnetic]] reactance to improve efficiency and reduce its energy expenditure to almost nil. Consequently, the magnetic coupling need not be placed directly on top of the transmission line. It may be located at a considerable distance depending upon the efficiency of the parasitic circuit.