Find the ratio of voltages at load terminals at theses speed

Assignment Help Electrical Engineering

Reference no: EM131265429

A 4-pole wound-rotor induction motor is used as a frequency changer. The stator is connected to a 50 Hz, 3-phase supply. The load is connected to the rotor slip rings. What are the possible speeds at which the rotor can supply power to this load at 25 Hz? What would be the ratio of voltages at load terminals at these speeds? Assume the stator and rotor impedances to be negligible.

Reference no: EM131265429

Questions Cloud

Build a tugboat : I want to build a tugboat that basically has a boat with a receiver of some sort that follows another dummy boat with a transmitter of some sort and the follower boat would have collision avoidance

Prepare line chart showing sales of sidekick athletic shoes : Prepare a line chart showing the sales of Sidekick Athletic Shoes, Inc., for these years: 2008, $6.7 million; 2007, $5.4 million; 2006, $3.2 million; 2005, $2.1 million; 2004, $2.6 million; 2003, $3.6 million.

Expires at the market rental applicable at renewal date : Jacob Ltd has leased a shop in a major retail district. The lease commenced on 1st July 2013 and is for 12 months. The lease payments are quarterly payments of $3,000 paid on 1st July, October, January and April with the first payment on 1st July 201..

Find the copper-loss in rotor windings : If the torque loss in windage and friction is 12 Nm, find the copper-loss in rotor windings, the input to the motor and efficiency. Given: stator losses 800 W (inclusive of wind age and friction loss).

Find the ratio of voltages at load terminals at theses speed : What are the possible speeds at which the rotor can supply power to this load at 25 Hz? What would be the ratio of voltages at load terminals at these speeds? Assume the stator and rotor impedances to be negligible.

Evaluate the use and effectiveness of graphics : Evaluate the use and effectiveness of graphics in three to five corporation annual reports. Critique their readability, clarity, and effectiveness in visualizing data.

Purpose of instant messaging : As project leader, you've spoken with these team members about the need to write clearer messages, but they respond that careful planning and writing defeats the whole purpose of instant messaging. How should you handle this situation?

How fossil fuels such as coal and natural gas are utilized : Explain the advantages and disadvantages related to both fossil fuels and renewable energy resources such as wind power, hydroelectricity, geothermal energy, and biomass. Provide 2-3 examples of the uses of both types of energy resources that are ..

Identify the major fallacies of international trade : Eco 142A Midterm Exam. Identify the major fallacies of international trade. "The net effect of a tariff, looking at its impact on consumers, domestic producers, government, and the economy at large, is generally considered negative." Explain this s..

User Account

All Pages