rated breaking torque, Other Engineering

Assignment Help:
Consider a 3-hp, 220-V, 1800-r/min separately excited dcmotor controlled by a single-phase fully controlled rectifierwith an ac source voltage of 230Vat 60Hz.Assume that the full-load efficiency of the motor is 88%, and enough filter inductance is added to ensure continuous conduction for any torque greater than 25% of rated torque. The armature circuit resistance is 1.5 .

(a) Determine the value of the firing angle to obtain rated torque at 1200 r/min.

(b) Compute the firing angle for the rated braking torque at -1800 r/min

Related Discussions:- rated breaking torque

Fresnel''s and fraunhofer''s classes of diffraction, Q. Distinguish between...

Q. Distinguish between Fresnel's and Fraunhofer's classes of diffraction. Show that the relative intensities of successive maxima of Fraunhofer diffraction at single slit are

Series of cash flows in economical engineering, Series of Cash Flows M...

Series of Cash Flows Most engineering economic analysis involve more than a single return occurring after the investment is made. In such cases, the present worth or the futur

An essay on power train, Interior noise is basically airborne or structure-...

Interior noise is basically airborne or structure-borne. The excitation sources of vibratation and noise from engines can be divided as mechanical, combustion, and flow sources.

Mos ic-s, MOS IC-S: Not all IC's are constructed using bipolar componen...

MOS IC-S: Not all IC's are constructed using bipolar components, IC's are often designed to utilize either bipolar transistors or "Field-Effect transistors" (FETS).  The Field

Power system analysis, I need a project in Load impact in power flow((const...

I need a project in Load impact in power flow((constant power, constant impedance, constant current, induction motor). Report from 3 articles source and simulation in powerworld s

Lead time, Enumerate possible impact of having inadequate system design in ...

Enumerate possible impact of having inadequate system design in the lead time and engineering cost?

Testing of propellers, Testing After Install After installation of a pro...

Testing After Install After installation of a propeller, the engine must be ground run in order to check the propeller for correct function and operation.  Aircraft propeller in

Fuels and lubrication technology, minimum mass of air required for complet...

minimum mass of air required for complete combustionof the HFO

Aerofoil aerodynamics -framework, Framework In the laboratory we will de...

Framework In the laboratory we will deal with low speed flows, at first using the potential flow solver. We will also investigate behaviour for the NACA 4-series of aerofoils.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd