figure shows the single strand equivalent circuit diagram of a three p
Figure shows the single-strand equivalent circuit diagram of a three-phase asynchronous machine with Squirrel-cage rotor for the fundamental.
single-strand equivalent circuit diagram The following parameters are known: R1 = 0.5 Ω R2` = 0.8 Ω Χ1σ = 2.0Ω Χ2σ`= 3.00ΧΗ = 2000 The reactances specified apply to the machine's nominal frequency fn = 50 Hz. It should be assumed that the windings in the stator and rotor are free of current displacement.Friction is neglected.Magnetic saturation phenomena are also not taken into account The increase in resistance due to heating of the winding is not considered. The canceled rotor sizes have already been converted to the stator. The asynchronous machine is operated at no-load on a power converter. the Fundamental slip is close to zero (s1 ~ 0). The fundamental rms value of the phase voltage is U1 = 400 V, the Fundamental frequency is f₁ = f = 50 Hz. Also includes the output voltage 11th and 13th order harmonics. U₁₁/U₁ = 0.15 and U₁3/U₁ = 0.12. Harmonics with higher ordinal numbers can be neglected. Harmonics of the 5th and 7th order do not occur thanks to an optimized pulse pattern. a) Calculate the fundamental current l₁. b) Calculate the harmonic currents l₁1 and 113. Hint: Please state the effective values of the phase currents for a) and b). c) Calculate the Joule heat losses Pv₁ of the fundamental oscillation in no-load operation. d) Calculate the Joule heat losses Pv₁1 and Pv13 of the 11th and 13th harmonic. e) Calculate the total current heat losses PVCu total when the machine is idling.
*The amount will be in form of wallet points that you can redeem to pay upto 10% of the price for any assignment. **Use of solution provided by us for unfair practice like cheating will result in action from our end which may include permanent termination of the defaulter’s account.Disclaimer:The website contains certain images which are not owned by the company/ website. Such images are used for indicative purposes only and is a third-party content. All credits go to its rightful owner including its copyright owner. It is also clarified that the use of any photograph on the website including the use of any photograph of any educational institute/ university is not intended to suggest any association, relationship, or sponsorship whatsoever between the company and the said educational institute/ university. Any such use is for representative purposes only and all intellectual property rights belong to the respective owners.