is it possible to operate Plasma opening swich in low conduction current say 40kA?
819272
I think is 40 kV, not kA\n\nI think is possible
371756
Assuming that you are not removing the SCR from the circuit.\nTry to look at the gate signal and the output at the cathode on a double beam 'scope while the servo is trying to operate. Or disconnect the gate and try to turn the SCR on from an external source and see if you get output motion from the servo or whatever the output is.Some caution required with 440 v !!Some recollection from 25 yrs ago may help ? Making a bridge  or H-switch to drive a 1/2 hp dc motor. Collected a pile of dud transistors on bench until able to prevent simultaneous turn-on down one side of the bridge. This is prevented by correct commutation and ensuring that during switching, the instantaneous power dissipation in the device remains outside the specified region.Commutation is aided by placing an air-core inductor in series with the load and then usng a secondary winding on this to make sure that when one side is conducting that the other arms are turned off.It is somewhat tricky and very critical.
1130935
Yes, it IS possible that positive charges can flow in a conductor. Consider a solution of NaCl in water - this solution conducts electricity in the form of Cl- AND Na+ ions moving in opposite directions. In plasma, current is carried by both the free electrons and protons flying around. Electrical current is far more general than just the elementary-school simplification of electrons moving through a wire.
177692
No matter what is the voltage rating, isolation or insulation is tested by using "MEGGER".\nThe value should be atleast above 1 Mega ohm in any case
822104
http://en.wikipedia.org/wiki/Plasma_(physics)\n\nGood question btw
615599
Operating 60Hz appliances at 50Hz or viceversa may result in excessive heat buildup in transformers or in certain types of electric motors. \nIf you wish to safely operate 115V 60Hz appliances at 115V 50Hz then the following steps can be attempted: \n\nContact the manufacturer of the appliance. It may be possible to safely operate at 50Hz with the manufacturer's approval. \n\nSee if an alternate 240V 50Hz or 115V 50Hz power supply or electrical motor is available. Some manufacturers sell the same appliance or electric tool in many countries around the world and may be able to retrofit the power supply or electrical motor to 240V 50Hz. Some regions of Japan have 100V 50Hz supplies while others have 100V 60Hz supplies so it is not uncommon for Japanese manufactured electrical devices to have 50Hz solutions. \n\nIt is possible to purchase 60Hz sine wave power systems that take 240V 50Hz on input and produce 115V 60Hz on output. These solutions are generally very expensive, and it is usually more cost effective just to replace the tool or appliance. See here for a high current frequency conversion solution. \nIf these solutions, for one reason or another, do not work then there are only two further choices: dispose of the appliance or tool, or attempt to operate the appliance or tool at 50Hz and in the process potentially create a situation where the power supply or the motors in the appliance or tool are rendered non-operational.
768061
Good question.\n\nI can't answer it here, it would take to long, but I suggest you go to this web site:\nhttp://www.iter.org/a/index_use_1.htm\nthen click the link to read more under intro to fusion.\nThen go to fusion as an energy source click read more, and then click how.\n\nThis page does a good job on explaining the basics of a plasma confinement. If you have more specific question feel free to ask.
172024
me! Solid Liquid Gas Plasma and the newest BEC( Bose-Einstein Condensation)
765543
try\nhttp://www.dir.ca.gov/title8/2395_42.html\nsection b\n\nGrounds are also tied to the cold water pipes and gas pipes.\nmake sure all circuits are dry and checked with a insulation resistor tester (megger).Readings above 2 Mega Ohms should be OK.
200572
Do you think those would help?\n\nhttp://scholar.google.com/scholar?q=design%20of%20a%20Lithium%20Niobate%20modulator%2040%20gbps&num=20&hl=en&lr=&safe=off&rls=GGLR,GGLR:2005-38,GGLR:en&oi=scholart
63801
A thyristor?\n\nIts a 4-layer semiconductor device that works as an avalanche switch.  It can be triggered into conduction any time but must wait for zero current to turn off.
53579
If atoms or molecules exist between the two electrodes (i.e. NOT a vacuum) and the electric potential is increased between the two electrodes, the electric field reaches the point where it can force the outermost electrons of the existing molecules out of orbit.  This process continues until the electrons reach the other electrode.  During this time, when the electrons rejoin the molecular orbits, photons are released.  This causes the substance to heat considerably.  When a certain number of intervening moelcules have become ionized because of the current flow, much less electric field is required to cause current to flow.  This second stage of the arc is known as a "struck arc," requiring far less voltage than the voltage require to start the arc while it can support far more current flow than it could before the plasma arc was established.  For instance, a struck arc from an arc welder has about 20 Volts across it (as a rule of thumb).  But starting an arc in air without touching the electrodes together requires thousands of volts.  Of course if you hold the electrodes very far apart the arc will die out because there is a resistance to current flow associated with the length of a plasma arc.  \n\nOther than lighting, we should remember that all spark-ignition engines use little arc generators (spark plugs) and a ton of research has been done on striking arcs in air with different electrode spacings, etc.  Electrode tip shapes can hugely effect the peak electric fields between two points.  The tiny electron tubes that make up a plasma screen also work on the arcing principal, but they are operating in a vacuum, so electrons are emitted from the electrode surface to the anode surface with no intervening gas molecules. \n\nI can't answer #2, sorry.
704421
Either an "open or short" circuit
287343
I would probably use Light Emiting Diodes connected to a low voltage dc source using very small gauge twin-lead wire.
966564
What you are proposing violates occupational safety regulations unless you've received the proper training and permits. Keep in mind that getting an electric shock from touching charged water is extremely dangerous because water reduces the skin's resistance to electricity, especially if you have salts dissolved in it. 35 mA is 3.5 times the minimum requirement to send a heart into fibrillation. Given the high voltage and water combination, there is no question that your body's resistance would be low enough to draw the full current limit.\n\nThat said, an arc is when you create a bright plasma conducting path. Dissolving bicarb in the water will make the *water* conduct instead, and load down (short) the HV, suppressing its voltage. You'll likely just heat the water that way. Your best bet is to use distilled water. Give the electrodes sharp points to enhance the electric field near the points. Bring the electrode close enough underwater, and you'll get your arc. Note that arcs create high pressure, and the water may splash out of the container and electrocute you.
274871
An induction coil liberates only very high voltages- high voltage electricty does not in itself stimulate the emission of any type of radiation. Hoever if you use that high voltage to produce beams of high energy electrons you can start doing damage- A simple x ray generator would consist of a high voltage supply which would accelerate electrons to a high velocity- this electron beam would be further focused by secondary electromagnets and strike a metal target, x rays will be produced at the target as a result of the high velocity electrons striking the target.\nThis is all pretty simple stuff and can be done (with some skill in a home laboratory) My advice however is DONT- you will probably fry yourself!!
456553
That's not going to be an easy task.\nIt's not usually done.\n\nEbay has soldering tools, even SMT ones.