Supplementary #2
... From the equation; ind KI A KcI A the armature current can be expressed as: ...
... From the equation; ind KI A KcI A the armature current can be expressed as: ...
What will happen when when armature winding of a dc shunt motor
... For a d.c shunt motor change of speed from no load to full load is quite small. Therefore, mechanical loss can be assumed to remain same from no load to full load. Also if field current is held constant during loading, the core loss too can be assumed to remain same. In this test, the motor is run a ...
... For a d.c shunt motor change of speed from no load to full load is quite small. Therefore, mechanical loss can be assumed to remain same from no load to full load. Also if field current is held constant during loading, the core loss too can be assumed to remain same. In this test, the motor is run a ...
Aalborg Universitet Wang, Huai; Blaabjerg, Frede
... proper robustness margin and cost-effectiveness, and c) implementations of condition monitoring to ensure reliable field operation and preventive maintenance. By taking the advantage of the progress in new dielectric materials and innovative manufacturing process, leading capacitor manufacturers hav ...
... proper robustness margin and cost-effectiveness, and c) implementations of condition monitoring to ensure reliable field operation and preventive maintenance. By taking the advantage of the progress in new dielectric materials and innovative manufacturing process, leading capacitor manufacturers hav ...
Aalborg Universitet
... proper robustness margin and cost-effectiveness, and c) implementations of condition monitoring to ensure reliable field operation and preventive maintenance. By taking the advantage of the progress in new dielectric materials and innovative manufacturing process, leading capacitor manufacturers hav ...
... proper robustness margin and cost-effectiveness, and c) implementations of condition monitoring to ensure reliable field operation and preventive maintenance. By taking the advantage of the progress in new dielectric materials and innovative manufacturing process, leading capacitor manufacturers hav ...
2013
... a) Draw the input and output characteristics of a CE NPN transistor configuration and discuss how you will determine hie and hfe hybrid parameters from these characteristics. b) For the emitter follower, with Rs = 0.1 KΩ, RL = 5 KΩ, hfe = 50, hie =1000 Ω, hoe = 25µAV. Calculate Ai, Av, Avs, Rin and ...
... a) Draw the input and output characteristics of a CE NPN transistor configuration and discuss how you will determine hie and hfe hybrid parameters from these characteristics. b) For the emitter follower, with Rs = 0.1 KΩ, RL = 5 KΩ, hfe = 50, hie =1000 Ω, hoe = 25µAV. Calculate Ai, Av, Avs, Rin and ...
Introduction to Capacitor Technologies
... When AC voltage is applied to a capacitor, current starts to flow through its dielectric material and all of its conductive parts such as electrodes and lead wires/terminations. In a practical capacitor, some part of the current passing through the capacitor is dissipated because there is a small am ...
... When AC voltage is applied to a capacitor, current starts to flow through its dielectric material and all of its conductive parts such as electrodes and lead wires/terminations. In a practical capacitor, some part of the current passing through the capacitor is dissipated because there is a small am ...
02025
... 2.0 MJ. A plot of expected life using 2.0 MJ as a base is also shown in Figure 9. As vacuum contacts vary in design between different manufacturers, it is difficult to predict the actual arc voltage in an across-the-board fashion. Thus, since most interrupters should be used within their rated fault ...
... 2.0 MJ. A plot of expected life using 2.0 MJ as a base is also shown in Figure 9. As vacuum contacts vary in design between different manufacturers, it is difficult to predict the actual arc voltage in an across-the-board fashion. Thus, since most interrupters should be used within their rated fault ...
UNIT – 1 Explain the principle of operation of a DC Motor. ANS
... to terminal 'F'. The starting resistance at starting is entirely in series with the armature. The OLR and NVC acts as the two protecting devices of the starter. Working of Three Point Starter Having studied its construction, let us now go into the working of the 3 point starter. To start with the ha ...
... to terminal 'F'. The starting resistance at starting is entirely in series with the armature. The OLR and NVC acts as the two protecting devices of the starter. Working of Three Point Starter Having studied its construction, let us now go into the working of the 3 point starter. To start with the ha ...
AEEE456TheoreticalQuestionsFall2016
... (e.g., in the leads) or by connecting current sharing resistors (which may not be practical due to power losses). It is possible to minimize this problem by selecting diodes with equal forward voltage drops or diodes of the same type. Because the diodes are connected in parallel, the reverse blockin ...
... (e.g., in the leads) or by connecting current sharing resistors (which may not be practical due to power losses). It is possible to minimize this problem by selecting diodes with equal forward voltage drops or diodes of the same type. Because the diodes are connected in parallel, the reverse blockin ...
Hartley oscillator
... amplifying device used, which may be a bipolar junction transistor, FET, triode, or amplifier of almost any type (non-inverting in this case, although variations of the circuit with an earthed centre-point and feedback from an inverting amplifier or the collector/drain of a transistor are also commo ...
... amplifying device used, which may be a bipolar junction transistor, FET, triode, or amplifier of almost any type (non-inverting in this case, although variations of the circuit with an earthed centre-point and feedback from an inverting amplifier or the collector/drain of a transistor are also commo ...
Experiment FT1
... If C is measured and plotted against 1/d, a straight line will be obtained, the slope of which will be 0 r A . Knowing 0 and A, the value of r can be calculated. When a battery is connected to the two metal plates, the capacitor will be charged up to the voltage of the battery. When the battery ...
... If C is measured and plotted against 1/d, a straight line will be obtained, the slope of which will be 0 r A . Knowing 0 and A, the value of r can be calculated. When a battery is connected to the two metal plates, the capacitor will be charged up to the voltage of the battery. When the battery ...
Experiment FT1
... If C is measured and plotted against 1/d, a straight line will be obtained, the slope of which will be 0 r A . Knowing 0 and A, the value of r can be calculated. When a battery is connected to the two metal plates, the capacitor will be charged up to the voltage of the battery. When the battery ...
... If C is measured and plotted against 1/d, a straight line will be obtained, the slope of which will be 0 r A . Knowing 0 and A, the value of r can be calculated. When a battery is connected to the two metal plates, the capacitor will be charged up to the voltage of the battery. When the battery ...
Experiment FT1
... = 1) as the insulator between the metal plates. When air space is replaced with a plastic film, it would be found that the capacitance will increase. This increase in capacitance shows that plastic has a higher dielectric constant than air. If C is measured and plotted against 1/d, a straight line w ...
... = 1) as the insulator between the metal plates. When air space is replaced with a plastic film, it would be found that the capacitance will increase. This increase in capacitance shows that plastic has a higher dielectric constant than air. If C is measured and plotted against 1/d, a straight line w ...
Capacitance
... • The difference between a capacitor and a battery is that a capacitor can dump its entire charge in a tiny fraction of a second, where a battery would take minutes to completely discharge. That's why the electronic flash on a camerauses a capacitor -- the battery charges up the flash's capacitor o ...
... • The difference between a capacitor and a battery is that a capacitor can dump its entire charge in a tiny fraction of a second, where a battery would take minutes to completely discharge. That's why the electronic flash on a camerauses a capacitor -- the battery charges up the flash's capacitor o ...
High-voltage vacuum Contactors
... No Surge Protection Required Special main contact materials minimize chopping current. No surge suppressor/arrester is required except for special applications. ...
... No Surge Protection Required Special main contact materials minimize chopping current. No surge suppressor/arrester is required except for special applications. ...
E92502 - ijarest
... transmission line and aviation object’s. The basic principle of the Multistage impulse voltage generator is the charging x number of capacitors in parallel & discharge them in series stack. MIVG's consist of a N number of stack where each stack consists of N number of components and each stack consi ...
... transmission line and aviation object’s. The basic principle of the Multistage impulse voltage generator is the charging x number of capacitors in parallel & discharge them in series stack. MIVG's consist of a N number of stack where each stack consists of N number of components and each stack consi ...
C:\Engr\Hysteresis Plot\BH Plot for Visualization Chrg+Dischrg Area
... Two key elements to the understanding of the operation of solenoids is the relationship between current flowing through the device and the associated voltage across it and the force produced by the current flowing through the coil. In the following two sections, mathematical models will be developed ...
... Two key elements to the understanding of the operation of solenoids is the relationship between current flowing through the device and the associated voltage across it and the force produced by the current flowing through the coil. In the following two sections, mathematical models will be developed ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.