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Showing posts from November, 2019

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Induction Motor Interview Questions with Answers | Part-1

Introduction to Arduino | Pin Function of Arduino | Working Process of Arduino

Introduction to Arduino | Pin Function of Arduino | Working Process of Arduino Introduction to Arduino | Pin Function of Arduino | Working Process of Arduino Introduction To Arduino Arduino is an Italian company that designs and manufactures Open Source Hardware (Microcontroller) and Open Source software or IDE (Integrated Development Environment). Arduino hardware is such a programmable computerized platform, by working on which the user can combine the hardware and software and prepare the electronic brain according to his own and can control the electronic devices from that electronic brain. What is arduino? If you want to understand more easily, then we can say that Arduino microcontroller is an empty brain, in which you can upload memory by coding or programming through arduino software, so these are called open source. Arduino works like a CPU of a board computer. Right now the microcontroller of the arduino of this time that we can take up is lik

Specifications Of 3 Phase Induction Motor

Specifications Of 3 Phase Induction Motor Specifications Of 3 Phase Induction Motor Following specifications are required to start the design of 3 phase induction motor:  ✓ Rated output in H.P. or K.W. ✓ Three phases ✓ Frequency in Hz = f ✓ Voltage in volts = V ✓ Connections, star or Delta, Y or ∆ ✓ Speed in RPM = N ✓ Type Squirrel cage rotor or wound rotor ✓ Type of Duty (Continuous, intermittent etc.) ✓ Power factor ✓ Efficiency ✓ Class of Insulation ✓ Temperature rise ✓ Full load current ✓ Pull out Torque Following symbols will be used for design: Q = KVA rating of machine P = Rating of machine in kW Eph = Induced emf per phase in volts (Generally applied voltage per phase = Induced emf per phase) Iph = Current per phase in Amp Tph = Turns per phase D = Diameter of stator core in m. L = Length of stator core in m Ba = Average value of flux density over the air gap Wb/m2 ac = Ampere con