An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor frequency at maximum torque point is A 3.33% B 4.44% C 5.55% D 6.66%

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Why servomotor and induction motor are in different shape

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what do you mean by lagging and leading current.explain in detail.

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Why DC Currents are not used in transformer?

4 Answers  

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Why the symbol of register is "zig zag"

0 Answers   Suzlon,

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what is the function of turbo charger in disel generators

1 Answers   Kirloskar,

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How to measure 20 hp motor resitance

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how the arcing is made in ac electric arc furnace? ( between the three electrodes in any sequences or between the electrode & the charge(steel))

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need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

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The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2

3 Answers   Sona,

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what is the requirement regarding earthing of Single conductor with AWA

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On what basis primary and secondary of a transformer is chosen?

2 Answers  

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