Series reactors to control fault current?
357873
Fault Currents are calculated based on the impedance of the system. Therefore, by adding line inducatance or even just lengths of wire, the Fault Current can be reduced.\n\nFor a typical 2000KVA, 480VAC 3 phase system a fault current can be more than 350,000amps in less than a second.\n\nCheck out the following: on the 'eatonelectrical' link type in Fault Current for calculations
209090
It's 8 Amps, the current has to be the same through both of them because it's a series circuit
546849
You cannot, as was stated earlier.  You need to get a motor rated for 240VAC. You do have the option of using a step-down transformer (or step-up as the case may be). Of course, transformers aren't cheap either, so I would definitely recommend getting an expert in to look at the problem and help you find a solution.
782903
A residual current device (RCD), or residual current circuit breaker (RCCB), is an electrical wiring device that disconnects a circuit whenever it detects that the flow of current is not balanced between the phase ("hot") conductor and the neutral conductor. The presumption is that such an imbalance may represent current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. A shock, possibly lethal, is likely to result from these conditions; RCDs are designed to disconnect quickly enough to prevent such shocks.
470470
I'd like to know exactly what you're trying to do. Using the wrong type of capacitor or one with the wrong values could explode and burn. I'm talking about a pretty violent explosion at 110 VAC!  A Snubber will not work because that is now what they are for. A snubber is used on the gate of SCRs to prevent false retriggering especially on high power circuits. What you need is a Thermistor. This is a flat round device with two wires coming out of the edge. The thermistor will be put in series between the power switch and the capacitor. At normal room temperatures the thermistor might have about 50 Ohms of resistance. When it warms up, (almost instantly), the resistance drops to about zero. This action limits and controls the initial power surge into the capacitor when the switch is thrown thereby preventing damage to the switch. You need to know the voltage and current load to select the right thermistor otherwise it becomes smoke.\n\nPlese use caution: Capacitors can store huge amounts of power and will COMPLETELY DISCHARGE IMMEDIATELY.\n\nA large capacitor, when shorted out, can blow a 1/4 inch screwdriver in half! Sounds cool but the missing part is burning molten metal flying at you! Please be Careful!
533546
You need two of those as fans. Connect them in series.\n\nOr...\n\nIf you don't have two of it, get an appliance which has the same rating and connect them in series.\n\nOr...\n\nPlug it to a voltage half its rating.
688170
Not sure. I use to be an electronics Tech but that was before SMPS existed. I'm guessing you might find something on the link below:
312735
Try a damping circuit.
755501
you need to regulate 12 v down to 5v.\n\nYou could use a common 555 timer, and adjust the delay with a potentiometer for the Resistor in the RC network.
561380
i don't know if you should even attempt that.  there have been many accidents with those exploding and overheating and such... it may not be safe to try to rewire one of those on your own.
167412
My suggestion would be to use a d.c. motor .  Incorporate the following : A D.C. motor, 2 momentary contact up/down switch, a reversing relay that would switch positive and negative when switching from up to down . Associated micro switches and ice cube relays to sense position and stop motor when destination is reached. Some form of safety clutch,light curtain etc. And a rectifier to convert house hold alternating current to D.C. . An alternative would be a reversing A.C. motor and associated similar controls less rectifier. Similar installation difficulty , my decision a/c vs d/c would be based on price and availability.
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.
771693
CanTexan is on the right path. More specifically, Nuclear Reactors create Heat. This heat energy creates a Pressure in the transfer medium (Water -> Steam) and is transferred to Rotational Mechanical Energy in a turbine. The attached Generator produces Electrical Energy.
775380
You have to consider steady-state security and dynamic security. It is the ability to provide rated voltage at rated frequency, and have enough "margin of safety". For example, an overloaded generator is a weak link in the overall security of the system, because it would be the one most likely to fail. An overloaded Tx line would probably sag so much that it might be susceptible to line-to-line faults in a wind. One way of estimating security margins (steady-state) is to run power flows at the current state of the system, and using short-term load-projections, run more power flow computations, and estimate the operating margin you have before over-load relays or transformer protection start operating and cause cascade failures.
752334
I have no idea what you mean by an "Eight Bus System"...... Please define it. \nHowever, an on load tap changer on the transformer being fed from the generators will help the reactive loading on the generators. It will keep the voltage stable on the generator bus thereby tending to keep the generator's output at or close to unity PF. Instead of the AVR holding the bus voltage at the required voltage and the generators providing the the VARs.
445519
Class A transformers include the following:\nHigh and low voltage Switch gears,voltage and current monitors,voltage regulators ,stabilizers and detectors,voltage insulators,controllers , calibrators.\nRefer to Alfa Transformers limited, Gogate eletro systems, and Neel Industrial systems.
721867
Check with local energy company. good luck