Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Power Control
A chopper converts fixed de input voltage to a controllable dc output voltage. It is the single stage dc to dc conversion device. It is a high speed on/ off semiconductor switch. The control of a dc series motor. When the chopper is ON ( this is ON period it means chopper switch is closed) for the period Ton output voltage Vo ( which is then applied to dc series motor) is equal to source voltages.
Vs in this period the inductance of armature winding will store the energy. When the chopper is OFF for period Toff ( it means chopper switch is Opened) output voltage will be zero but armature current will be flowing through freewheeling diode FD series fields and armature.
Figure voltage and current waveforms of a chopper controlled dc series motor
Therefore the output voltage can be controlled by varying duty cycle α hence the speed of dc series motor can be controlled.
Q. Two shunt generators operate in parallel to supply a total load current of 3000 A. Each machine has an armature resistance of 0.05and a field resistance of 100. If the generat
Let me know if you can help during the test
The coursework requires you to work in pairs to write a Java application that will take a numerical representation of a MIPS program and simulate its execution. MIPS is a Load-S
Unconditional Return RET Instruction: This instruction is used to transfer the program sequence from subroutine to the calling program unconditionally. The instruction forma
a 400V 4-pole DC generator takes an armature current of 50A when rotating at 626 rpm. the armature circuit resistance is 0,25ohms. determine the generated emf. DOC
Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt
Q. 10-kVA, 4800:240-V, 60-Hz, single-phase transformer has an equivalent series impedance of 120 + j300 referred to the primary high- voltage side. The exciting current of the tr
Discuss different kinds of Automation and their Advantages? Illustrate the Detroit type of Automation? Discuss basic Principles and strategies automation? Discuss the industries
Explain the different types of polarizations. Polarizations are of three types. i. Electric polarization ii. Ionic polarization. iii. Dipolar polarization.
Q. Show Proper cash management? Proper cash management: cash management is a important task of finance management he has to access to various cash needs at the difference time
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd