0
What else can I help you with?
What are specifications of pn junction diode?
This can vary significantly from diode to diode (especially the reverse recovery time and peak reverse breakdown voltage), so always consult the datasheet.
What is the difference between voltage forward voltage and voltage drop?
Voltage is the potential difference between the source & any point in the circuit. The forward voltage is the voltage drop across the diode if the voltage at the anode is more positive than the voltage at the cathode (if you connect + to the anode). Voltage drop means, amount of voltage by which voltage across load resistor is less then the source voltage.
What is voltage gain?
Voltage gain is the ratio of the output voltage of an amplifier to its input voltage.
What is voltage amplitude?
Voltage amplitude is the maximum value of a voltage.
What is knee voltage and breakdown voltage?
Knee voltage (cut in voltage) :-The forward voltage at which the current through the P-N Junction starts increasing rapidly is called as Cut in voltage or knee voltage Breakdown voltage :-It is the minimum reverse voltage at which the P-N Junction can conduct without damage to the current
What is restriking voltage?
Restriking voltage is the voltage that appears across the contacts of a circuit breaker after the current-carrying contacts separate during an interruption. It occurs due to the re-ignition of the arc between the contacts, creating a momentary rise in voltage in the circuit. This can potentially damage the circuit breaker and equipment if not properly managed.
The value of restriking voltage depends on?
L and C
Define recovery voltage in circuit breakers?
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.
What is the difference between the rupturing capacity and the short circuit breaking capacity?
Rupturing capacity:Rupturing capacity or breaking capacity expresses the current that a circuit breaker is capable of breaking at a given recovery voltage under certain set conditions of operation. It is expressed in MVA The set conditions are power factor,recovery voltage and rate of rise of restriking voltage. When the current broken is symmetrical it is called symmetrical breaking capacity. When the current broken is asymmetrical it is called asymmetrical breaking capacity. It is common to designate circuit breaker capacity based on asymmetrical breaking capacity. Breaking capacity of a circuit breaker =√3xVxIx10-6MVA Short circuit breaking capacity: It is the highest value of short circuit current which a circuit breaker is capable of breaking under specified conditions of transient recovery voltage and power frequency voltage. It is expressed in kA. The breaking current is expressed in two ways1)The r.m.s value of a.c component of current at the instant of contact separtation.2)The percentage of d.c component of current at the instant of contact separtation. While selecting the circuit breaker for a particular location in the power system the fault level at that point is determined.
What has the author S Ananthakrishnan written?
S. Ananthakrishnan has written: 'Transient recovery voltage and circuit breakers'
What are specifications of pn junction diode?
This can vary significantly from diode to diode (especially the reverse recovery time and peak reverse breakdown voltage), so always consult the datasheet.
Is there a different when electrocuted with a current of high and low voltage?
High-voltage systems have extremely high levels of energy and, so, coming into contact* with a high voltage conductor will likely cause catastrophic external burns at the current's entry/exit points, as well as internally along the current path. The likely of recovery from high-voltage electrocution is low. Anyone who does recover may have irreversible organ damage. (*It's not even necessary to come into physical contact with a high-voltage conductor, as merely approaching within its vicinity may be enough for flash-over to occur.)
What is current chopping?
When low inductive currents, such as magnetiing current of transformer, shunt reactors are interrupted by breaker, there is rapid deionization of contact space and may cause the current to be interrupted before its neutral zero. This phenomena is called current chopping. This generally occurs during opening small inductive currents by vacuum ckt brkr or air blast circuit brkr. The transient voltage having high restriking voltage RRRV appears across the contacts, unless the arc restrikes. If it restrikes a further, chop may occur or several chops may occur before the current is finally interrupted. Circuit breaker may fail to clear the current. Circuit breaker in which dielectric strength of contact space grow at slow rat, the problem of current chopping is less severe as the gap breaks down and absorbs successive magnetic energy by restriking. Oil circuit breakers are therefore suitable to such application. This is the reason that sometimes in air blast circuit breakers resistance switching is adopted.
What is a non-pressurized recovery container?
is a clean recovery container which must have 1000 microns recovery
Why is it necessary to use fast recovery diodes fo rhigh speed switching?
Fast recovery diodes are essential for high-speed switching applications because they minimize reverse recovery time, which is the duration it takes for the diode to switch from conducting to blocking state. This rapid transition reduces the risk of voltage spikes and increases overall efficiency, helping to prevent overheating and potential damage in high-frequency circuits. Their low reverse recovery current also minimizes switching losses, making them ideal for applications like power converters and RF amplifiers where speed and efficiency are crucial.
What is the difference between voltage forward voltage and voltage drop?
Voltage is the potential difference between the source & any point in the circuit. The forward voltage is the voltage drop across the diode if the voltage at the anode is more positive than the voltage at the cathode (if you connect + to the anode). Voltage drop means, amount of voltage by which voltage across load resistor is less then the source voltage.
Where is the Fort Recovery Site in Fort Recovery Ohio located?
The address of the Fort Recovery Site is: Historic Pl, Fort Recovery, OH 45846
