Posts Tagged ‘used’

They Don’t Make Them Like They Used To

Thursday, March 14th, 2013

Old Lionel Railway commercials.
Video Rating: 5 / 5

Can an electric motor be used as a generator?

Friday, December 7th, 2012

Question by Extra: Can an electric motor be used as a generator?
With no extra components being added? I mean, by just driving the shaft of the electric motor can you power an electric device like a generator?
by any chance can anyone give me an example of this kind of electric motor?
also, can these motors be used for electrically powered automobiles?

Best answer:

Answer by John Kyaw
Yes, you can. You are absolutely right.

What do you think? Answer below!

What kind of engine is used in trams and trolleybuses?

Monday, November 19th, 2012

Question by Teymur A: What kind of engine is used in trams and trolleybuses?
Are electric motors the same as for example in CD-ROMs, only bigger, used to move trams?

Best answer:

Answer by busnuttwo
most big trans use diesel engine to power a generator to power elect motors at wheels elect parts are 600 volts dc so ypu can vary speed diesel engine operates from 300 rpm to about 900 rpm depends on engine most are 16 cyl or 20 cyl some were g m 16 149 whitch mean 16 cyl 149 cu in per cyl some trams work same way city trolly with over head wires may work in higher voltage but do not have diesel engine some are ac some dc depends on age etc old are dc there are lots of book on big trains etc

Add your own answer in the comments!

Is old, used cork worth saving?

Saturday, October 13th, 2012

Question by trainboy765: Is old, used cork worth saving?
I have a significant amount of cork from two previous model railroads I had. Some of it is about 15 years old, the rest is around 30. Both have been sitting in boxes for about the past 5 years and will probably stay in boxes for at least another 5 to 10.

Is this stuff at all worth saving, or should I just throw it out and buy new cork when I go to make my next layout?

Best answer:

Answer by Lissy
DO NOT THROW it out….RECYCLE IT!

Add your own answer in the comments!

Could an induction motor be used for regenerative braking in electric train control?

Friday, July 27th, 2012

Question by : Could an induction motor be used for regenerative braking in electric train control?

Best answer:

Answer by johnm
Sounds possible. See http://en.wikipedia.org/wiki/Hybrid_train. I see it as a real possibility for lighter passenger trains. It might take development of special batteries for the heavier trains.

Know better? Leave your own answer in the comments!

A transformer is used to convert 120 V to 15.7 V in order to power a toy electric train.?

Saturday, June 30th, 2012

Question by : A transformer is used to convert 120 V to 15.7 V in order to power a toy electric train.?
If there are 214 turns in the primary, how many turns should there be in the secondary?

Best answer:

Answer by Mohasa
use V1/V2 = n1/n2

where V1 = 120 V, V2 = 15.7 V, and n1 = 214 turns

so n2 = n1 V2/V1

…… = 214*15.7/120

n2 = 28 turns, number of turns in the secondary

Hope this helps

Add your own answer in the comments!

A step-down transformer is to be used to convert an ac voltage of 120V to 6V to power an electric train.?

Monday, June 18th, 2012

Question by : A step-down transformer is to be used to convert an ac voltage of 120V to 6V to power an electric train.?
If there are 300 turns in the primary coil, how many turns shoud there be in the secondary coil?

Best answer:

Answer by Callum F
You need to work with the fact that Voltage Out/Voltage In = Turns in 2nd coil/turns in 1st coil.

Using that, you can sub in the numbers to get:

6/120 = x/300

Rearrange to find x, which is the number of turns in the secondary coil

What do you think? Answer below!

Why are maglev trains and electric bullet trains so heavily used in China?

Wednesday, March 7th, 2012

Question by : Why are maglev trains and electric bullet trains so heavily used in China?
Shanghai city maglev

http://en.wikipedia.org/wiki/Shanghai_Maglev_Train

CRH380A electric bullet train

http://en.wikipedia.org/wiki/China_Railways_CRH380A

1 http://www.youtube.com/watch?v=1FQwnGoG3FI

2 http://www.youtube.com/watch?v=BesG8uCyuSM

3 http://www.youtube.com/watch?v=VII1qOaFXI4

Best answer:

Answer by Anthony
because they are very economical to operate thats why

Give your answer to this question below!

A transformer is used to convert 120 V to 8.6 V in order to power a toy electric train. If there are 260 turns

Monday, February 6th, 2012

Question by Australianhotti: A transformer is used to convert 120 V to 8.6 V in order to power a toy electric train. If there are 260 turns
Please help me!!!
A transformer is used to convert 120 V to 8.6 V in order to power a toy electric train. If there are 260 turns in the primary, how many turns should there be in the secondary?

Best answer:

Answer by jrrymiller
The voltage ratio is the same as the turns ratio. So the easiest solution is:
120/8.6 = 260/X whoops I got the X on the bottom, no problem
8.6/120 = X/260 and X = 8.6*260/120
= 18.63 turns
actually you would probably put 19 turns as a practical matter.

Add your own answer in the comments!

We’ve been had by a Doberman breeder! Now do we keep him or get rid of this poor dog whose used to us!?

Saturday, December 17th, 2011

Question by Fuzzy: We’ve been had by a Doberman breeder! Now do we keep him or get rid of this poor dog whose used to us!?
We got a Doberman puppy (5 mos old) from what we believed was a “Reputable and responsible” breeder who professes to “specialize in Dobermans for first time owners.” It was a BIG deal to pay her $ 4,400 for our dog. He was $ 3,000 plus $ 1,400 for training that meant he never jumped on our furniture or people, and didn’t chew anything other than his toys or bone. After MANY phone conversations & e-mails, I surprised my husband (who REALLY wanted THIS dog as he was described to him) and bought him. He’s a mess! We’ve paid trainers (former Westminster judges) & vets tell us that we’ve been had! His temperament was sold as “IDEAL companion & STRONG candidate for protection training.” He’s been described as “autistic.” EXTREMELY afraid of people & now spent well over $ 2,000 on tests, Rx’s & foods since he’s had diarrhea from Day 1. We love him & it’s just two of us in a very calm environment. We have NEVER yelled at or hit him, yet he’s so fearful it’s sad. What should we do? Thank you!
We DID do all the research and chose this breeder from many! If you look at the web site, you’ll believe it too! MANY phone conversations took place & shots/medical records were provided AFTER we paid. The catch is that if we NOW look at the web site, it’s VERY clear that it’s very deceptive advertising. For example, there’s a photo and mention of the man who trained the Dobes for that doberman pack robbing a bank movie. What it doesn’t say is “NONE OF THOSE DOGS WERE FROM US!” She apparently gave/sold ONE dog to this man and now cashes in! You wouldn’t figure this out right off the bat. The key to all of this is that she told us on the phone all about this puppy’s parents. After we got him and asked for photos of the sire and dam, THEN for the FIRST time, she said, “Oh, I got him from a breeder friend & don’t know the parents, I’ll send the pedigree. We’ve done EVERYTHING humanly possible to help & keep him but the STRESS is unbearable now, not to mention we’re up to $ 7,000..
I wrote this 4 strangers 2 comment because we DID our homework & it took 5 YRS to buy! I want people to know to what degree of deception & sophistication advertising has gotten! We’re hard working, loving, intelligent people & were dooped! Don’t buy a dog from a breeder any farther than driving distance from your home! Know them, research them, pay for background checks, meet parents of the “to be puppy” & visit the litter from day 1! Pay someone experienced in litter testing to pick your pup! Our 1st choice was keep him NO MATTER WHAT! Unfortunately, it’s getting impossible! The training of $ 1400 is COMMON! He arrived house broken, has never jumped on anything or anyone! Smart breeds like Dobermans are COMMONLY well trained (basic commands) by five mos (to that lawyer who attacked us)! His chronic diarrhea is not bacteria or thyroid & she sold us a “perfect companion dog/STRONG candidate for protection. She lied, he’s a sick & fearful/skiddish sad dog who’s breaking our hearts!

Best answer:

Answer by Casey B
you can actally sue the breeder and get your money back. Just be sure that you have proof of everything you have done yourself for this poor puppy.

Sounds like she beat/ neglected the pup before giving it to you. You can sue this breeder for false advertisement.

What do you think? Answer below!

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