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Why do transformers hum?
We could use the tired saying 'because they don't know the words,' but that might get us sidetracked.
The short and simple answer is that Transformers hum because of an effect known as 'lamination rattle' caused by DC voltage on the line or poor construction or both. 'Lam' rattle occurs in all transformers to some degree, that degree being related to the quality of the transformer and the quality of the line voltage.
What else can I help you with?
What is the main advantage of using alternating current in the power grid?
Low loss transmission of power at high voltages for long distances then the ability to transform down to lower voltages near the point of usage, i.e. substations and pole transformers near residences.
Is living near power lines dangerous?
Very dangerous. You should avoid these lines at all cost and immediately call you power company.
What is the difference between primary electrical distribution and secondary distribution?
Primary electrical distribution carries medium voltage power to distribution transformers near the customers. Secondary electrical distribution transfers the power from the transformer to the households.
When did the United States stop using DC power in your homes?
We never did, that battle was lost before electrical transmissions lines where anywhere near common.
Why is Dc series motor used to start at heavy load?
due to its high initial torque value. the DC series motor is a Constant power motor, equal to the RATED POWER if it has at rated value of the U and I. Angular velocity=Rated Power/Torque, so Torque =Rated Power/Angular Velocity thus, in the start the velocity is zero or near, so, the Torque is infinit or very higt
Is hear and near example of slant rhyme?
No. Hear and near are not an example of slant rhyme.
What is found near a window?
a window pain or you when you are standing next to it
What are the lyrics to 'I'll be near you' by ivy?
is lomething like this: Tell me what you see when you close your eyes Do you see the stars? and open skies? Somewhere in the darkness, there's a light Can you feel me here? In your heart tonight? I'll be near you I can hear you I'll be near you I can hear you You dont have to feel so alone You are all Ive ever had all I've ever need all I've ever known I'll be near you I can hear you I'll be near you I can hear you. Vaj
Is Kevin Jonas near sighted?
No not at all Kevin,s not near sighted but i hear Joe is.
Where do ducks sleep?
On or near Daryl's face.
Where is the DA member in the transfiguration courtyard?
The member is standing near the bench.
What will you hear near a volcano?
you will probably hear like spurting noises or maybe crackles off the fire in the volcano
What direction do wind near the equator blow ocean water?
it depends where standing. if u are standing on esupid island it is going ns.
Where is wenda in the gobbling gluttons?
Wenda is to the left of Waldo (who is standing SW of the spaghetti table). She is standing near the chef and behind two people.
What sounds can grey wolf's near that humans can't.I am not looking for how far they can hear?
Wolves can hear better than humans.
Where was Standing Bear born?
Near the Niobrara River where the Ponca's were forced to move.
Why do guys not answer their cell phones?
Either they are avoiding you or they dont have it near them or hear it.
