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Life Interactive UPS Systems
The block diagram of lien integrative UPS is shown in figure when the main supply is ON static switch remains closed and load is connected to mains through an inductance L. In this condition the battery bank the DC through inverter which is used in as charger now.
Under the condition of power failure the main static switch becomes open. In this condition the battery bank supplies the power to the load through the inverter.
Determine the shaft power output: A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 180 Nm when the rotor emf frequency is 2 Hz. Determ
Q. The 50-turn coil in the configuration of Figure is rotated at a constant speed of 300 r/min. The axis of rotation is perpendicular to a uniform magnetic flux density of 0.1 T. T
Describe the three main sources of power dissipation in CMOS logic. Hence calculate the power dissipated in a CMOS ASIC of 40,000 gates operating at a frequency of 133MHz with a s
Dry type 10KVA-3ph-440/230v Dyn11. If we decide to wound above such specification, what current to be taken i.e. phase current or line current 7.57A or 13.12A
Q. Electronic Photo Flash? A simplified schematic diagram of the electric circuit of an electronic photo flash typically used on cameras is shown in Figure 7.7.1. By passing a
#I want to get lecture notes on Electronic device.and circuits .
Q. Explain the working of LEDs OPTOELECTRONIC devices either produce light or use light in their operation. The first of these, the light-emitting diode (LED), was developed to
Consider the optical cavity shown below. (a) Compute the photon lifetime. (b) Compute the cavity Q (assume that the wavelength region of interest is 500nm). (c) Su
1. Write a MATLAB program to generate and plot the signal x1(n) = [3 2 -2 0 7], n = 0,1,2,3,4.
Q. Develop a schematic diagram of a system in which the D/A converter of Figure can be employed in a digital voltmeter.
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