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

Hot and cold working, the amount of cold working metal can withstand is dir...

the amount of cold working metal can withstand is directly related to which properties? name two and also discuss the effect that cold working has upon these properties?

Grain ethanol plant design, Can you help me design a grain ethanol plant as...

Can you help me design a grain ethanol plant as a design project? I need help with mass and energy balances Key equipment design ie distillation column, heat exchanger, storage t

Design structure matrix, what are the types of interactions in the design s...

what are the types of interactions in the design structure matrix?

FSE, A W12x40 beam is heated to 760°C. Answer the following questions. Wh...

A W12x40 beam is heated to 760°C. Answer the following questions. What is the W/D factor for sprayed protection? What is the W/D factor for box type protection? What is the spe

Cupola, The cupola is the most widely used furnace in the foundry for melti...

The cupola is the most widely used furnace in the foundry for melting ferrous and non ferrous metals and alloys. Various zones of cupola     (i)            Well or crucibl

Principles of fire alarm systems, Principles of Fire Alarm Systems: Fi...

Principles of Fire Alarm Systems: Fire alarm systems usually perform two primary functions.   Firstly, they provide a means for warning people throughout the building that the

The axial flow compressor - aircraft engine, The axial flow compressor: ...

The axial flow compressor: The axial flow compressor is by far the most popular type of compressor and, although it is more difficult to manufacture, it is a more efficient com

Assignment, Real time processing is suitable when it is necesssary to have ...

Real time processing is suitable when it is necesssary to have the latest information in the following types of business operations

#digital electronics, #Design 2:1 MUX with strobe input using NAND gates

#Design 2:1 MUX with strobe input using NAND gates

Structures , how to find the equation for deflection of a cantilever beam s...

how to find the equation for deflection of a cantilever beam subjected to udl in terms of Airy''s stress function

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