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When a transformer winding suffers a short circuit the adjoining turns of the same winding experiences what force?
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∙ 11y ago
Both radial and axial forces.
Wiki User
∙ 11y ago
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Why do you need a main power breaker?
Incoming power goes through the main breaker to the lugs feeding all branch breakers/fuses. Shutting off the main breaker shuts off power to all other breakers/fuses downstream. This may not match with NEC's definition. You should check that too.
Of what disadvantage is labyrinthectomy as an alternative to the placement of an endolymphatic shunt?
Labyrinthectomy is more successful than other surgeries in eliminating vertigo, but the patient suffers complete and permanent loss of hearing in the operated ear
What is the difference between neutral and ground in a three phase system?
No matter whether we're describing a three-phase service or a a single phase service, the bare copper "earth" or "ground" wire normally carries no current. Its purpose is to provide an emergency path for current if ever there is any accidental contact between a hot wire and the external (or internal) metal parts of any electrical device which a user may be able to touch. The electrical device can be a motor, a water heater, an air conditioner unit or any other kind of appliance.By carrying away the excess current in a fault condition - which should cause the protecting fuse to blow or the circuit breaker to trip - the "ground" or "earth" wire protects the building and its occupants because the power should be cut off before anyone gets electrocuted or any overloaded circuit wiring or appliances catch on fire.The neutral is the normal "return" wire. In systems where the load is supplied from only one hot (or "live") wire, the neutral completes the circuit and carries current back from the load to the power station. In "Y-" or "star-connected" three-phase circuits the neutral doesn't normally carry any current if all three phases are properly balanced.If the three phases actually have unbalanced loads - which can easily happen if each phase is being used to provide power to different single-phase circuits, each with their different loads - then some current will flow in the neutral wire and will result in unbalanced 3-phase currents flowing back to the power station.All the neutral and ground (or "earth") wires in a building are tied or linked together at the incoming service main breaker panel. This is the only place they should ever be tied together because it is "upstream" of all the fuses and/or circuit breakers protecting the hot (or "live") wires for the various circuits installed in the building.Warning: we must never assume that a neutral is safe to touch: it has to be checked with a voltmeter or a voltage indicator to be sure it is not "live". This is because a neutral wire is designed to carry current under normal circumstances.So, if a neutral wire going back to the incoming main breaker panel has not been properly connected - or suffers a deliberate disconnection or some accidental damage which causes it to break - then it and any neutral wires connected to it further downstream will go live up to the break because of being connected to the downstream loads which still have hot feeds coming into them!That is why we should never use a neutral as a substitute for a proper, separate, ground or "earth" wire.If some external accidental damage or electrical breakdown of the wiring's insulation occurred anywhere to the house wiring, to a socket outlet or to an appliance, these things could be very dangerous if there was no such protective wire.For example, if there was no protective ground or earth wire, a fault could happen that is of a kind which did NOT draw enough extra current to blow a fuse or make the main circuit breakers on the incoming supply panel "trip" to cut the current off - but the wiring could still catch on fire and/or someone could be electrocuted!Neutral wires are the return paths to the power generation station for current it supplies to the house or building via single live or "hot" wires in the branch circuits.For more information please click on the Related Questions below.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
If an appliance is metal how does the earth wire and fuse protect both the appliance and user?
All the neutral and ground (or "earth") wires in a building are tied (or "connected") together at the incoming service main breaker panel - and that is the only place they should ever be tied together - because it is "upstream" of all the fuses and/or circuit breakers which are there to protect the hot (or "live") wires for the various circuits installed in the building.In the absence of an earth wire (= ground wire in US/Canadian English), if the appliance suffered some damage that caused a short circuit between the high voltage "hot" lead and the case of the appliance, the damage would make the case live and it would cause an electrical shock to anyone who touched it.If the case is earthed by using a ground wire (= earth wire in British English), if that same damage occurred the hot lead would immediately be shorted to ground and in theory cause the fuse to blow or circuit breaker to open, thus eliminating the danger of a live case.In the USA I think we refer to what you are calling an "earth wire," as a GROUNDING CONDUCTOR, which in effect is a separate conductor which seems to be doing nothing but is in fact a protective wire. It is there, ready to take the current away to earth if it, or the body/frame of the electrical device it is connected-to, makes contact with any "hot" wire. [120 Volts mains power is carried in two current carrying conductors "hot" and "neutral".]So, IF one of the "hot" conductors should contact the metal frame or housing - perhaps because the appliance got damaged by being dropped from a table, or similar accident - the third wire which is the "ground" or "earth" wire, which runs directly from the housing to the grounding [or earth bus] in the fuse or breaker panel, will in effect cause a short circuit which should blow the fuse or trip the breaker.This third wire also guarantees a current path back to the load center where the fuse or circuit breaker protecting that circuit is located, in the event the hot wire should be in contact with the frame, but the other [neutral/return] conductor should happen to be cut, disconnected, or open.The idea is to guarantee that if a part of the device should become "hot," which could be fatal to anyone who then came into contact with it, would trip/open the circuit protection device [fuse or breaker], turning off the flow of current to that circuit.All the neutral and ground (or "earth") wires in a building are tied or linked together at the incoming service main breaker panel. This is the only place they should ever be tied together because it is "upstream" of all the fuses and/or circuit breakers protecting the hot (or "live") wires for the various circuits installed in the building.Warning: we must never assume that a neutral is safe to touch: it has to be checked with a voltmeter or a voltage indicator to be sure it is not "live". This is because a neutral wire is designed to carry current under normal circumstances.So, if a neutral wire going back to the incoming main breaker panel has not been properly connected - or suffers a deliberate disconnection or some accidental damage which causes it to break - then it and any neutral wires connected to it further downstream will go live up to the break because of being connected to the downstream loads which still have hot feeds coming into them!That is why we should never use a neutral as a substitute for a proper, separate, ground or "earth" wire.In addition to the above description it should also be mentioned that the presence of an earth wire allows a very sensitive safety device called a Ground Fault Circuit Interrupter (GFCI) to operate. It will cut off the power supply to the appliance even if a tiny current of a few thousandths of an Amp is detected flowing in the earth wire, which should normally carry no current at all.In USA/Canada, and similar countries which use mains supplies running at 120 Volts 60 Hz to feed power sockets, it is probable that the latest designs of GFCIs which are fitted to all new wiring work actually operate in the same way as the RCDs described in the next paragraph, although they are still commonly called GFCIs.In Europe, where 230 Volts, 50Hz mains supplies are standard in homes, offices, etc. such protective "trip" devices are called Residual Current Detectors (RCDs) because, in addition to being able to detect small earth leakage currents, they have the ability to detect very small differences between the currents flowing in the hot (or live) wire and the neutral wire. Such imbalances might be caused by minor damage to the appliance which allows a small current - known as a residual current - to leak to earth either via the user or via the earth wire (if one is connected) even though the appliance itself is still working. So using an RCD helps to prevent a serious shock hazard to users if ever the kind of minor damage occurs which, in the absence of an RCD, would cause the appliance's casing to become "hot" or live.Thus RCDs give a very high level of safe operation even if no circuit breaker has tripped and no fuse has blown and the appliance appears to be working normally. (But it has really become unsafe!) Because of the enhanced protection they give to users of appliances the latest European wiring regulations (= wiring codes in US/Canada and elsewhere) make it compulsory to fit RCDs to all new power circuits.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.For more information please see the answers to the Related questions and the Related link shown below.Earth or ground at a device provides shock protection if the hot wire were to come in contact with a metal part that you could touch. At your main panel earth and neutral are bonded together and connected to a ground rod.
What is recursive algorithm?
Algorithm can be defined as an interpretable, finite set of instructions for dealing with contigencies and accompanying task that has recognizable end-points for given inputs. It is a tool for solving a well computational problem. A recursive algorithm is one which calls itself.
When a transformer winding suffers a short circuit the adjoining turns of the same winding experiences?
A short circuit between adjacent turns of the same winding will cause the turns ratio of the transformer to change. A short circuit of this nature may not cause the transformer to become disconnected, so the situation could last for a long time. In larger utility transformers, the gases formed by the arcing between turns will collect in the Buchholz relay, situated between the transformer and its expansion tank, which will then initiate an alarm inside the substation.
What is the synonyms for encounters?
experiences, meets, faces, suffers, meets, confronts, comes across,
What happens if I plug 24 volts to 220 volts?
If you mean connecting two different voltages in parallel, you would have a "short circuit" where the 196-volt differential is dissipated in any high-resistance point in the circuit, creating a lot of heat for a very short time (as something suffers thermal runaway and catastrophic breakdown). You could get an explosion and fire. On the other hand, if you have a 24-volt DEVICE and plug it into 220 volts, the result would depend upon what kind of device it is. For instance, if it's a 120/24-volt step-down transformer and you plug in the 24 volts to 220, you will be running the transformer "backward" and create 1,100 volts at the "output". If the transformer's design does not include adequate insulation for 1,100 volts, you would have dielectric breakdown, and another possible "short circuit" when things melt and conductors touch each other.
Type of play in which a noble hero suffers?
Tragedy. It typically involves a protagonist of high moral stature who experiences a downfall or suffering due to a tragic flaw in their character.
When was The Woman Suffers created?
The Woman Suffers was created in 1918-03.
What is the duration of The Woman Suffers?
The duration of The Woman Suffers is 1.02 hours.
Who suffers from climate change?
Apparently, Columbia suffers most. :o
Nick Jonas Suffers from....?
Nick Jonas suffers from a disease called Diabetes.
In wrinkle in time how do they make sure that no one suffers on camotozos?
How do they make sure that no one suffers on Camazotz?
Who suffers from illegal music downloading?
who suffers from downloading music on sites? EVERYONE DOES EVERYONE BUT YOU.
Is suffers an adverb?
No. Suffers is a verb form. Adverb forms would include insufferably and sufferingly.
What is the medical term for someone who suffers from amnesia?
Amnesic is the medical term for a person who suffers from amnesia.
