0
Extinction angle of a rectifier (γ): Also used in connection with a controlled rectifier. It refers to the time interval from the instant when the current through an outgoing thyristor becomes zero (and a negative voltage applied across it) to the instant when a positive voltage is reapplied. It is expressed in radians by multiplying the time interval with the input supply frequency (ω) in rad/sec. The extinction time (γ/ω) should be larger than the turn off time of the thyristor to avoid commutation failure.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Phase modulation with 8 different phase angles and a 2000 baud rate what is the data transfer rate?
the bps is not the complete point of this system if your looking for the correct information you could contact the department of fair trading or contatct your local club the year 2000 was unseccessful for this era of disgrace!!!
What is two phase protocol in a dbms?
In two phase locking there are two phases. The first phase is known as Expanding Phase and locks are issued in this phase. No lock is released. Then after change all changes are committed and the second phase starts that is the Shrinking Phase in which all the changes are noted and the locks are released. No locks are issued in this phase
The phase of the Technology Product Development Cycle that describes key technology that has been integrated into many products is the .?
mature phase
What is the last phase of the technology development cycle where a technology no longer provides a competitive advantage because everyone uses the technology?
saturated phase
Which phase of the laser printing process includes applying toner to the latent image?
Developing Phase
What is extinction angle control?
extinction angle control is a scheme of forced commutation for power factor improvement in phase controlled convertors/rectifiers. In this scheme the firing angle is adjusted in order to get the desired output or load voltage. By varying the value of extinction angle we can get the desired load voltage and current waveform.......submitted by abhimanyu(sunny)
What is difference between single phase and three phase rectifiers?
Single phase rectifiers are suitable to power loads of up to only about 15 kW. For higher power demands, three phase rectifiers are preferred for the following reasons: Higher dc voltage, better TUF, better input power factor, less ripple content in the output current - therefore giving better load performance and a smaller size of filter circuit parameters because of the higher ripple frequency.
What are the applications of rectifiers in use?
A bridge rectifier, is a group of rectifiers (4 in a single phase) wired so that each half of an AC current is passed to respective positive and negative lines of a DC output. It provides full wave rectification of AC into DC.
How do you convert j equations to phase angle equation?
The phase angle is the angle that has a tangent of (imaginary part)/(real part).
What is the difference between phase angle and phase difference?
Although we use the term 'Phase angle' it's also an angle referred to another phasor (voltage or current).For example,conventionally when expressing power factor, we use 'voltage' as the reference. So the 'phase angle' of a particular phasor is the phase difference between our reference (voltage) & the phasor.As the gist, both mean the same except that 'phase angle' is the direction of the phasor w.r.t. positive x direction (reference)..AnswerBy definition, phase angle is the angle by which a load current leads or lags a supply voltage.Phase difference is the angle between any two electical quantities -for example, the angle two phase voltages of a three-phase system.
What is single phase Controlled rectifier?
such a control rectifier that control or rectifier single phase. for that purpose we used SCR that is called single phase controlled rectifier.
What is phase angle of a resonant circuits?
The current through a resonant circuit is (in general) out of phase with the voltage. One measure of the phase angle is this angle. At resonance the phase angel is near zero so it can be used as a parameter to drive a self-tuning mechanism.
What is the formula for phase angle?
Phase angle is defined as the angle by which the load current leads or lags the supply voltage in an AC circuit. There are numerous ways to calculate a circuit's phase angle, so there is no 'formula' as such. For example, if you know a load's resistance and impedance, or its true power and apparent power, then you can use basic trigonometry to calculate the phase angle, and so on.
What is phase angle error of current transformer?
The angle between the expected and actual secondary current is known as phase error.
What will happen to phase angle if the the value of capacitor is increase?
in a series RC circuit phase angle is directly proportional to the capacitance
Why phase angle is zero when voltage and current are in phase?
1 & 3
What is the formula for calculate 3 phase power MVAR?
Q = 3 Vph Iph sin(phase angle) = 31/2 Vline Iline sin(phase angle)
