Short circuit is caused due to connection of earth and current wire.Because electrons start transferring from current wire to earth wire that is from high potential to zero potential and sparking occures due to electron transfering with high energy and heat is also evolved.
It's a quasi-random event, that usually occurs after a certain amount of wear and tear frays insulation.
A short circuit happens when current is diverted from the circuit it is meant to power, by linking the two power supply lines directly.
This can be caused by many reasons. Dropping a metallic object onto a circuit board may bridge the power supply and cause a short.
A damaged power supply cable, may allow the two conductors to touch together, providing a direct connection across the power supply, drawing massive amounts of amperage and possibly catching fire.
A component, like a smoothing capacitor, may fail linking the two otherwise insulated plates together, causing a short circuit path.
Fuses or circuit breakers, usually take care of a possible short circuit and remove the power before the appliance or cabling, actually catches fire.
A short circuit is an interruption in the design of a circuit. The short interferes with the flow of electricity causing feedback through the process.
short circuit in the circuit
If you are saying that the secondary (output) winding on a transformer seems to be a short circuit, it is very likely to be low resistance and may only be a few ohms if you measure the resistance with an ohmeter. The only way it would actually be a short circuit is if something has been inserted which has shorted the wires or it has overheated and burnt through. In which case there should be an acrid smell. Or if you can see the wires you would see they were burnt. A short in the circuit it is powering could cause the transformer to overheat, burn out and short.
It is usually located in the headlight switch. It is a automatic reset circuit breaker. When a short occurs it rapidly blinks the headlight circuit on and off so the headlights are not completely lost to allow you to pull off the road safely at night.
Depending on which circuit Could be defective component Vibration causing a wire to short to ground
ac clutch relay open or short circuit
1. That if a short circuit occurs we will get a sign before short circuit will happen or not ? 2. what we can do ? 3. how fuse can get a short circuit ? 4. which wires we have to use from preventing short circuit ?
when the fuse is not working
when 2phases bridge together,that is short circuit
short circuit
If your reference to a safety device is a fuse, then if there is a short circuit, the circuit will be de energized by the opening of the fuse.
Presumably, the current follows a path (a circuit) to do whatever it was "made" to do. If water, for instance, enters the circuit, a shorter path may develop, and the current will (partially) take the short circuit. Or a wire could become lose and short circuit the intended path.
short circuit
A short circuit is a condition whereby a point or section of the circuit offer a short path for current to return to the power supply. It occurs when two or more points or sections of the circuit touches each others (but only and only if that results in drop in resistance to such an extent that it causes excessive current to flow through.
*Look at the simple circuit illustrated in Figure A-2. What will happen when only switch S1 is closed? Correct Answer= "Nothing will happen-the light bulb won't light up." <<>> If there is a load in the circuit the load will operate. If there is no load in the circuit and it is complete then a short circuit will occur and something in the circuit will burn open. If the circuit is complete and there is a fuse or breaker in the circuit, then the fuse or breaker will open the circuit.
the winding would burn....
When a voltage is present between two points in a circuit (electrical outlet, battery, etc.) it normally flows through a load of some resistance to do some work. If instead a pure conductor (usually metal) connects the two points separated by a voltage, a short circuit results. Current through the short circuit is very high and usually results in fire or failure unless protected by a circuit breaker. In low-voltage, low-power electronics a short circuit might not be dangerous but is usually undesirable.
A short circuit occurs when electricity can pass with little resistance between two parts of a circuit where it is not intended to. Typically, it will happen when two uninsulated wires touch accidentally, or a conducting (metal) part contacts two uninsulated parts of the circuit. It could also happen if the circuit is in contact with a conducting fluid such as saltwater. A short circuit can even happen through air if voltage becomes very high, enough to create an electrical "arc", overcoming the resistance of the air. In the worst case, a short circuit connects the positive and negative terminals of a battery or voltage source almost directly, with almost no resistance, and very high current results, which is dangerous. In other cases, the short circuit might not create any danger, because the path of electricity encounters resistance in another part of the circuit. However, the voltage difference across the short will be zero, and the voltage difference across the intended path between the endpoints of the short will also be zero. All the current will flow through the short, and none through the intended path. As a result that part of the circuit probably will not work.