This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are transformer cores laminated? What will be an ideal ... (Read 71 times)

wenmo

  • Hero Member
  • *****
  • Posts: 540
on: Jul 26, 2018
Why are transformer cores laminated?
 
  What will be an ideal response?

Question 2

When locating an air cooled condenser outdoors, why must the system be modified?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lin77x

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 26, 2018
Answer to Question 1

Transformer cores are made of thin sheet metal strips in the form of a laminate. There are a number of advantages to using thin sheet metal strips. It is far easier to manufacture thin sheets because they can be stamped where the thicker material would have to be cut. Also the voltage induced in the core will cause current, called eddy current, to circulate. Each metal strip is insulated with a thin layer of oxide that resists the flow of eddy currents. This reduces unwanted current circulation through the core and excessive heating of the transformer.

Answer to Question 2

The condensing unit will also need some means of keeping the high side pressure above a minimum value during low outdoor temperatures.


wenmo

  • Member
  • Posts: 540
Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Typical exhaust manifold gaskets. Note how they are laminated to allow the exhaust manifold to ... Typical exhaust manifold gaskets. Note how they are laminated to allow the exhaust manifold to ...
Ice Cores Ice Cores
Ice cores: Periods of rapid climate change especially in North Atlantic Ice cores: Periods of rapid climate change especially in North Atlantic
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas? If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas?
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Hemodynamics Animation

For a complete list of videos, visit our video library