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[DOC File]UNIT – I
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A 3 phase Induction motor is running at 1740 rpm on a 60Hz supply. Calculate the no. of poles, the slip and the rotor frequency. The power supplied to a 3- phase Induction motor is 40 kw and the corresponding stator losses are 1.5KW. Calculate the total mechanical power developed and rotor copper loss if slip is 0.04 per unit.
3 phase ac power

[DOC File]Induction Motor Design (3-Phase)
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Output of a 3 phase IM is . Where . VPh1= Input phase voltage. IPh1= Input Phase current . Or equation (1) can be written as . Where. f = frequency of supply =PN/120. P =No of Poles. N =Speed in RPM. Kpd1= Winding factor =0.955 = Average value of fundamental flux density =Pole pitch = D = Inner diameter of stator. L = Length of the IM
3 phase ac power formula

[DOC File]classes.engineering.wustl.edu
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2. With Ifield = 0.0 Amp and the field poles demagnetized, apply 175 V (line-line, 3-phase, 60 Hz), to the AC machine and measure and record line current, phase voltage, and phase power. This allows calculation of the machine’s equivalent reactance. 3. Connect the DC machine as a separately excited DC generator driving a load of 6 ohms.
2 phase ac power

[DOC File]TECHNICAL SPECIFICATION FOR A 3 TO 15 KVA - Crucial Power
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The main function of a rectifier is to convert the AC input to DC power, and supply it to the inverter. The inverter then converts the DC power to AC power for the load. The UPS use the DC power to charge the batteries as well, which is the most efficient method of charging.
three phase ac power

[DOC File]Total active power is defined as: .ac.rs
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6-pulse 3-phase diode rectifier dc power supply (3-DR)) 6-pulse switched-mode power supply (SMPS) 6-pulse PWM controlled variable speed drive (PWM VSD) Table 1.2.1 summarizes the current waveform spectra for every aforementioned load up to the 19th harmonic.
3 phase ac power supply

[DOC File]3-Phase H-Bridge design and MOSFET selection
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This application note will focus on the MOSFET bank. The MOSFET bank is also known as the H-Bridge for a 3-phase motor. The H-Bridge is the circuit that converts the DC voltage to the 3-Phase AC voltage which is needed to spin the motor of the MSU solar car. The conversion takes place by having 6 MOSFETs in a specific way shown in Figure 1.
single phase ac power

[DOC File]HARMONIC ELIMINATION IN THREE PHASE ASYMMETRIC …
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1.3 Power factor. The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load to the apparent power , and is a number between 0 and 1 (frequently expressed as a percentage, e.g. 0.9 pf = 90% pf). Apparent power is the product of the current and voltage of the circuit.
ac power calculation formula

[DOC File]The Power Flow Equations
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Power balance is required, meaning, for a lossless system, the total net power injection must be zero, i.e., (4) This means that power injections may only be specified at 2 nodes, and then power injection at 3rd node is determined. Let’s assume that the node where the power injection is determined is node 3…
3 phase ac power calculator

[DOC File]ELECTRICAL SYSTEMS: 7766J: EA719
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No ASSESSMENT % 1 Resistor Networks – customised assignment 15 2 AC circuits (RLC) – customised assignment 20 3 Transformers, transmission, safety, 3 phase – Star/Delta 20 4 Motors and motor control 20 5 TEST 25 100% ASSIGNMENT 3: Ass3 Transformers, transmission, safety, 3 phase – Star/Delta 20% Explain the following terms. Ripple
3 phase ac power

[DOC File]Utility companies generate three phase electric power ...
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Utility companies generate three phase electric power, which consists of three sinusoidal voltages with phase angles of 0, 120, and 240 degrees., The AC generators described in most introductory textbooks are single phase generators, so physics students are not likely to learn much about three phase power.
3 phase ac power formula

3 phase ac power calculation