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What reason for bulb blowing in an electrical circuit?
Too much current for the rating of the bulb.
How is a Residual Current Device or RCD different to a Ground Fault Circuit Interrupter or GFCI?
Nowadays terms Residual Current Device or RCD and Ground Fault Circuit Interrupter or GFCI refer to the same type of electrical safety device.If there is no fault anywhere in a circuit supplying single-phase alternating power to a unit such as an electrical appliance, machine or other equipment, the current flowing to the unit at any instant in the "hot" or "live" wire should exactly match the current flowing away from the unit in the neutral wire. Similarly, there should be no current flowing in the unit's safety "ground" or "earth" wire.It is a basic fact of electrical engineering design that all current flowing to an electrical appliance, machine or other equipment from the power generation station via its supply circuit's "hot" or "live" wire should only return to the power station via that same circuit's "neutral" wire.So, as a result of that basic fact, if any current isflowing in the ground wire, it must be caused by a fault condition and the supply of current to the circuit needs to be stopped urgently. Many years before today's electronic RCDs or GFCIs were designed, much simpler electro-mechanical relays called Earth Leakage Circuit Breakers (ELCBs) were invented so that, if any such ground current exceeding just a few milliamps was detected, they would "trip" - meaning "operate" - to break the current supply to the circuits for which they were installed to protect.An Earth Leakage Circuit Breaker was the first name given to what is now called a Ground Fault Circuit Interrupter (GFCI) . The original type of ELCB or GFCI was designed only to detect a current flowing in the safety "ground" or "earth" wire.So the original type of ELCB or GFCI did not check for any difference in current flowing in the live and neutral wires, a difference that would be an indication of another type of serious fault condition. Such a fault can be serious because, even if no current can be detected flowing in the ground wire, the "missing current" may actually be flowing to ground via someone's body!After miniature electronic circuits were invented the invention of RCDs became possible: an RCD constantly checks for small differences in the currents flowing in the live compared to the neutral wire and for any current flowing in the earth wire. If any such "fault current" is detected, the device is designed to act very fast to shut off the supply of power to the circuit and the unit(s) it is protecting, because the "missing current" may actually be flowing to ground via someone's body!That is the reason why, when RCDs were invented, most manufacturers of GFCIs adopted the same technology because it offers so much more protection to users than the original GFCI could ever give.In the US and Canada such devices are still commonly known as "GFCIs" or "GFIs" even though they have the additional "residual current detector" functionality, whilst in Europe and elsewhere the more accurate name of "Residual Current Detector" or RCD has been widely adopted for general use instead of using the name of the originally much simpler GFCI device.For more information on all these topics see the answers to the Related Questions and the Related Link shown 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.
What is the use of a transformer with turns ratio 1?
isolation if you are in the usa and must service electronics the neutral is grounded the power supply is a voltage doubler one side is 170v+ to ground the other is 170v negative to ground so if you run the power thru the transformer first you stand a better chance of staying alive these transformers are quite often used to trigger scrs or triacs for the same reason
What is the difference between a series electric circuit?
A series circuit is a circuit that only has one path for current to flow on, a parallel circuit is a circuit that has multiple paths for current to flow on. Parallel circuits are mostly used, especially in your house/home. The reason of that is because, if a device in a series circuit electrically malfuctions or goes down, it will stop the current flow, thus ending and cuting the whole rest of the circuit. In a Parallel circuit, if a device electrically goes down, current will still be able to flow through the other circuit branches, and the rest of the circuit, thus keeping electricity flowing.
Why negative control is adopted in DC system And why DC circuit breakers are kept at the negative side?
The answer is: They are not. Whosoever told you that is off his meds. Alternatively, in some special applications there may be a reason for it. Many DC systems use a common ground where the loads are encased in the ground (like starter motors). Thus all breakers are positive, but some don't. If the loads don't care about polarity and the positive and ground are not common (like with a metal chassis), positive and negative is irrelevant.
Is the battery in an Sl500 battery positive or negative ground?
Batteries are neither positive nor negative ground. It is the circuit itself that determines the common ground. For example: If I have two circuits, one needing 6vdc negative ground and the other needing 6vdc positive ground, the battery would be installed the same way in both circuits (positive terminal on the battery to the positive connection in the circuit, regardless of whether the circuit is positive or negative ground). The reason for labeling the ground as Positive or Negative has more to do with how the circuit is wired up, than the actual voltage source. The explanation for that is beyond the scope of this answer.
Why insulation meter of LT panel shows low insulation reading below 500k ohm?
The only reason this would show is that the circuit has leakage to ground. This is still well above tripping current but the potential is there to advance into a short circuit.
Reason why a digital system must have a ground plane set at zero volts?
Any electrical system needs a voltage reference point. In other words, voltages in an electrical circuit are given (or measured) in reference to a point, which is by definition "zero" volts. This reference point can be called "ground". In other words, ground is by definition "zero volts". Perhaps you wanted to ask why we need ground in a "plane" form in a digital printed circuit board. That is usually done to improve the noise characteristics of the printed circuit in question. A ground plane disrupts the electromagnetic field created by the signals and if laid out carefully, can reduce the unwanted electromagnetic emissions.
How is an ammeter connected in a circuit in order to read the current flowing in the circuit?
In series with the circuit and never in parallel. The reason being that it will cause the circuit total resistance to drop which will make the circuit draw excessive current. That's a short circuit actually.
What was the reason for starting Delaware?
The reason was for trade and agricultural purposes :)
Why do magnets crash computers?
for some reason, they just distort the circuit.
What was the reason for pop art starting?
what was the reason for pop art to start?
What are the Reason to be late starting with?
M
1998 Ford escort ZX2 - speedometer Tachometer Odometer air and radio go out erradically then engine kicks starting to die and then roaring again fixes itself after a few minutes then repetes?
It sounds like the ground lead in the car has gone bad. There is no other circuit that effects all of those systems combined. Check to see if the secondary ground is WELL attached. The reason I say negative ground is because the AC / heater system is not routed through the main harness. It is totally manual and has a VERY simple circuit. Using my ZX2 for Rally, I know that we had a lot of issue very similar because the battery terminals get jostled so much that the terminals would actually loosen over time.
Why would there be power to ground wire instead of switch and lights Lights stopped working all of the sudden outside?
There will always be voltage to the ground wire, this is normal. The reason being is that the ground wire is bonded to the neutral terminal block back at the distribution panel. If you have a voltage reading to ground at the outside fixture with the switch in the on position then you have an open return neutral wire. This wire should be traced back from the light to the distribution panel. Check ever junction box that the circuit goes through and look for a loose or open white neutral wire. Closing the circuit where you find this fault will correct the problem.
What reason for bulb blowing in an electrical circuit?
Too much current for the rating of the bulb.
What is a reason to be late starting with the letter w?
Weather
