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It is the transient voltage that appears across the contacts of the circuit breaker at or near the zero current instant during arcing period. A high frequency transient voltage appears across the contacts and is caused by the rapid distribution of energy between the magnetic & electric field associated with the station & transmission lines of the system at the zero current. This transient voltage is known as restriking voltage.
Wiki User
∙ 15y ago
Wiki User
∙ 9y agoRecovery voltage is defined as the normal value of voltage that appears across the contacts of the circuit breaker after final arc extinction. It is approximately equal to the system voltage.
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Define electrical panel board and what its purpose?
Answer for UK, Europe and countries running a 50 Hz supply service.A domestic power supply enters the property as a single-phase two-wire circuit with a large fuse or cut-out. The distribution panel splits the circuit off into several smaller circuits each with its own fuse or circuit breaker.A simple example in Europe would the nominal 230 v supply which would have a 60 amp fuse for a typical small property. The distribution panel would split that off into a 30 amp ring circuit, a 30 amp cooker circuit and a 10 amp lighting circuit. The advantage is that a fault in one circuit would blow only one of the fuses and would not disconnect the entire supply to the property.
If an insulator with a lamp is connected in a electrical circuit The switch is turned-on What happens?
Please re define "If an insulator with a lamp"
Is led a voltage controller or current controller?
An LED is a diode that emits light; diodes allow current to flow only one direction. The voltage applied to the diode attempts to force current to flow in a specific direction. If the voltage polarity is reversed, and current was flowing before (so there was a small voltage drop across the diode), current will cease to flow (assuming the voltage is not too high for the diode to handle), and (almost) all the voltage will be dropped across the diode (a small leakage current may flow, which means some of the voltage will not be dropped across the diode, but this is in the milli or micro range). I would never define a diode as a "voltage controller" or "current controller". It could be either or both, from the above description.
How do you define a pole in circuit breaker?
A pole In a circut breaker refers to the number of circuts it controls, single pole only controls one, double controls 2 at same time
What is the function of the ground in a circuit?
Ground can be a confusing term, as it can have two separate meanings. Here's one way: Conventionally, the ground of a circuit is the return line for the current. If you have a battery hooked up to a resistor, then the "positive" side of the battery terminal, the side that carries positive voltage, is the "hot" side, and the other side that completes the circuit back to the negative terminal of the batter is "ground." That said, ground is technically anywhere in the circuit you want it to be. Ground is what the designer of the circuit decides is 0 volts, and every other voltage is relative to ground. Another use for the term "ground" is the safety measure built into our electrical system, now. It's a short circuit to the Earth so that if something in your circuit breaks down, the extra, potentially dangerous current, can flow directly to the Earth, and not build up dangerous charges in the machine, etc. The bottom hole of your wall outlets is this safety ground. But, to restate what I said above: In terms of the circuit, ground is technically what you define to be 0 volts.
Is and example of inherent resistance?
define inherent powers and give an example Is the increase in voltage causes a greater electric resistance in a circuit? No, the resistance in a circuit does not change when voltage changes.
Define voltage in electrical?
Voltage (of a circuit) as defined in the NEC: n. The greatest root-mean-square(rms) (effective) difference of potential between any two conductors of the circuit concerned. Voltage as defined by Webster's: n. Electromotive force or potential difference, usually expressed in volts.
Define the puncture voltage?
whta is puncture voltage
Define generator short circuit ratio?
Checked Stephen J. Chapman's Electric Machinery Fundamentals page 287. It says: Short Circuit Ratio (SCR) for the synchronous generator is the ratio of the field current required for the rated voltage at OPEN circuit to the field current require for the rated armature current at SHORT circuit.
How you can reduce voltage of a transformer?
Number of turns in the secondary winding define the voltage. Change the number of turn to change the voltage.
Define rated impulse voltage?
Simply, the voltage which is withstand by the test object as an impulse is called as rated impulse voltage.
What is an electrical isolator?
Something that doesn't let electricity throughAnswerAn isolator (UK terminology) or disconnector (US terminology) is a switch used to isolate a section of a circuit from any energised conductors, by presenting a visible break in the circuit. Isolators are not designed to break load currents (unless fitted with optional arc-breaking feature) or to break fault currents. In high-voltage systems, isolators are used in conjunction with circuit breakers -with the isolators opened after a circuit breaker has opened the circuit, and closed before the circuit breaker closes the circuit. For example, before one can perform maintenance work on, say, a high-voltage circuit breaker, the following sequence must be followed:the circuit breaker is opened, breaking the circuit.isolators located on either side of the circuit breaker are opened, presenting a visible break between the isolator and energised lines.temporary earth (ground) connections are applied to each side of the circuit breaker.barriers and warning signs are erected around the circuit breaker to define the permitted work area.a permit to work card, listing the work to be performed, and any potential hazards, is issued to the personnel who are to maintain the circuit breaker.
How would you define concurrency and recovery?
Concurrency is when computer science and the system works together. Recovery is taking the time to heal.
What is making capacity of a circuit breaker?
Hard to define... A four year old child has the strength to physically "make" a typical household circuit breaker, while a teen would be able to "make" a typical industrial circuit breaker. (The latter breaker being physically much larger than the former.) Circuit breakers have their "breaking capacity" rated in AMPS. A typical household breaker is rated at 20, 30 or 50 Amps. Industrial breakers might be rated at 500 amps or a thousand or even more. Hope this helps but if it didn't answer your question, please rephrase it and ask again.
Define rms reverse voltage of a diode?
A DIODE will breakdown at a certain reverse voltage if RMS VOLTAGE IS SPECIFIED THEN the actual voltage will be RMS volts times 1.41
Will the circuit be completed when Jesus comes according to Jehovah's Witnesses?
The word 'circuit' is not a Biblical word, so you will need to define what you mean by circuit.
Define the term regulation as applied to dc power supply?
change in load voltage or output voltage changes in load current
