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... A 10 pole 50Hz slip ring induction motor runs at 576RPM on full load. The rotor resistance per  phase is 0.25Ω. Calculate the additional resistance per phase to be inserted in the rotor circuit if  the speed is to be reduced to 480RPM for full load torque.                                             ...
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Alternator vs Generator Presentation

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... (b) List out the electrical characteristics of an ideal Op-Amp. 3. (a) what is the necessity of constant current source? What are the different means to realize constant current sources? Explain with neat circuit diagram. (b) Explain and Derive the exact equation for Output Voltage of Closed Loop In ...
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... Figure 3-24. The energy used by the circuit in passing current through the load (resistance) is called a voltage drop. A voltage drop occurs when current flows in the circuit. ...
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... voltage levels (Comparator). Since it amplifies the difference between it’s + and – inputs, it will go to saturation in the direction (+ve or –ve) of the input that is the larger by only a very small amount. Remember that with a gain of 200000:1 a 5V input will give a 1V O/P, and theoretically, a 1 ...
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... Independent standalone solar street lighting system Powered by a 74Wp of solar array A 12V,75Ah@C10 battery backup providing 5 days autonomy 4m height pole ...
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... These are constant power devices and have their own power regulators. They operate satisfactorily within an operating voltage range. If 30 % or more of a site’s electrical load is made up of switch mode power supplies (SMPS), such as information technology in particular, the supplying circuit’s suit ...
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... Show all you calculation to get full credits. For all questions, you can ignore ro and capacitor is large enough to operate as coupling and bypass capacitors. 1. Write a truth table for minority function and optimize the circuit using Karnuah map. The system has 3 inputs, A,B, and C. The output will ...
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... In direct current (DC), the charge carriers (usually electrons) flow in one direction only. The size of the current (number of amps) may vary with time, but the flow direction does not. A voltage that would cause a direct current in simple resistor circuit is called a DC voltage. ...
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... reduced from 11 to 4. (2 dual modules). The voltage these switchers operate from is reduced from +30v to +5v. This reduces the likely EMI effect of the switching. ...
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... Power factor correction formula The following formulae are used to calculate the value of power factor correction capacitor 1. Apparent power It is the load voltage x Load current Eg. Load voltage = 230V Load current = 10A Then 230x10 = 2300 VA or 2.3 KVA 2. Power factor It is the True power (W) div ...
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ComboLight New Construction Recessed Trimless - 12V PAR36 - 5 Light
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... conductors or 60º C for end of run. The fixture is also UL listed as ‘access above ceiling not required’. ...
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Voltage optimisation

Voltage optimisation is a term given to the systematic controlled reduction in the voltages received by an energy consumer to reduce energy use, power demand and reactive power demand. While some voltage 'optimisation' devices have a fixed voltage adjustment, others electronically regulate the voltage automatically.Voltage optimisation systems are typically installed in series with the mains electrical supply to a building, allowing all its electrical equipment to benefit from an optimised supply.
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