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Leading angle means that the current lead voltage by 90 degree,which implies a capacitve load. while,lagging angle mean when the current lag the voltage by 90 degree or when the voltage lead the current by 90 degree.which implies an inductive load.
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Is the phase shift caused by the post detection filter a lead or lag?
lead
What is the efficiency of power transformer at same load at 0.9 lead and 0.9 lag power factor?
Same
What is the physical difference between 0.5 pf lead and 0.5 pf lag how they play their different roles in an electric cicuit?
0.5 lead PF or Power Factor means that the signal is ahead of the input voltage by a factor of 90 degrees. The lagging PF means it falls behind the input signal. In sinusoidal signals 0.5 lead or lag will be the same.
Power factor lead or lag?
By definition, the terms 'leading' and 'lagging' refer to what the load current is doing with respect to the supply voltage. So, for a 'lagging power factor', it is the current that is lagging.
What is output of not gate if sine wave is input?
Completely depends upon frequency of operation and amplitude.
What does lead mean in electronics?
A lead or lag applies to a signal due to active components to make it lead or lag the original signal
What is the opposite of lag?
lead
What is number of products in development - a lead or a lag indicator?
A lead indicator of revenue, a lag indicator of R&D expenditure.
Lead versus lag indicators?
Such indicators are found within scorecards where lead are short-term which affect lag long-term Example: training is lead indicator and service excellence resulted from good training is a lag indicator Best of luck
Is the phase shift caused by the post detection filter a lead or lag?
lead
What is a lag indicator?
what is a lead and lag indicator Lead performance indicators are prospective in nature and indicate the performance of the key work processes, culture and behaviour, or the working of protective barriers between hazards and harms, that are believed to control unwanted outcomes. Lag performance indicators are retrospective measures based on incidents that are determined as unwanted outcomes. Generally the lag indicators representing harm to people or assets are the ultimate evaluation of proactive monitoring.
What is the efficiency of power transformer at same load at 0.9 lead and 0.9 lag power factor?
Same
AC circuit that contains both resistance and inductance will have a.The current and voltage in phase b.current will lead the voltage c.current will lag the voltage d.voltage will lag the current?
a. the current and voltage in phase
What is the physical difference between 0.5 pf lead and 0.5 pf lag how they play their different roles in an electric cicuit?
0.5 lead PF or Power Factor means that the signal is ahead of the input voltage by a factor of 90 degrees. The lagging PF means it falls behind the input signal. In sinusoidal signals 0.5 lead or lag will be the same.
What type of controller is used in lead lag compensator?
A lead-lag compensator is a type of controller. It is used to control the frequency response of a system. The lead part helps speed of response while the lag part helps accuracy. Basically its a lot of Bode Plot work. Good results in this frequency domain usually corresponds to good results in the time domain as long as you follow the translation guidelines (I don't remember them off the top of my head but you can find them in any controls textbook).
What is lagging indicator?
what is a lead and lag indicator Lead performance indicators are prospective in nature and indicate the performance of the key work processes, culture and behaviour, or the working of protective barriers between hazards and harms, that are believed to control unwanted outcomes. Lag performance indicators are retrospective measures based on incidents that are determined as unwanted outcomes. Generally the lag indicators representing harm to people or assets are the ultimate evaluation of proactive monitoring.
What is difference between lag compensator and lead compensator?
The difference between a lag compensator and lead compensator is that the lead compensator modify the transient response of the system while the lag compensator modifies the steady state.A Compensator Gc is of the form K*A(S+1/T)/(S+1/(AT))the S=-1/T is the additional zero and S= -1/(AT) is the additional pole. For a lead compensator, A is between 0 and 1 while for the lag compensator A is bigger than 1 which allows of an appreciable change in gain, hence a change in steady state response.A lead-lag compensator is a component in a control system that improves an undesirable frequency response in a feedback and control system. It is a fundamental building block in classicalcontrol theory. Contents [hide]1 Applications2 Theory3 Implementation4 Intuitive explanation5 References6 See also7 External linksApplicationsLead-lag compensators influence disciplines as varied as robotics, satellite control, automobile diagnostics, laser frequency stabilization, and many more. They are an important building block in analog control systems, and can also be used in digital control. Given the control plant, desired specifications can be achieved using compensators. I, D, PI, PD, and PID, are optimizing controllers which are used to improve system parameters (such as reducing steady state error, reducing resonant peak, improving system response by reducing rise time). All these operations can be done by compensators as well. TheoryBoth lead compensators and lag compensators introduce a pole-zero pair into the open loop transfer function. The transfer function can be written in the Laplace domain aswhere X is the input to the compensator, Y is the output, s is the complex Laplace transform variable, z is the zero frequency and p is the pole frequency. The pole and zero are both typically negative. In a lead compensator, the pole is left of the zero in the complex plane, , while in a lag compensator .A lead-lag compensator consists of a lead compensator cascaded with a lag compensator. The overall transfer function can be written asTypically , where z1 and p1 are the zero and pole of the lead compensator and z2 and p2 are the zero and pole of the lag compensator. The lead compensator provides phase lead at high frequencies. This shifts the poles to the left, which enhances the responsiveness and stability of the system. The lag compensator provides phase lag at low frequencies which reduces the steady state error.The precise locations of the poles and zeros depend on both the desired characteristics of the closed loop response and the characteristics of the system being controlled. However, the pole and zero of the lag compensator should be close together so as not to cause the poles to shift right, which could cause instability or slow convergence. Since their purpose is to affect the low frequency behaviour, they should be near the origin.
