×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Frequency (Waveform) Generator

Frequency (Waveform) Generator

Frequency (Waveform) Generator

(OP)
I am looking for a site (or manufacturer) with information on frequency generators.  I am looking to simulate European (50Hz) waveforms for testing equipment.  Anyone with any info on this topic would be helpful.

RE: Frequency (Waveform) Generator

Hi,

I am uncertain what your question is.

Do you require power at 50 Hz or just a 50 Hz signal ?.

If its the first, then I take it at your location you do not have 50 Hz mains and that you have something else 60Hz/120V maybe ?.
If so then you have a few options.

1. Convert your mains supply to DC (12/24V) then have an suitable inverter convert it back to AC of the frequency you require.
2. Use a motor generator/rotary converter set to convert 60Hz to 50 Hz power
3. Buy a 50 Hz elctric generator

The size & type above, of course depends on your power requirements. Are you testing transistor radios or electric cookers!!. There is a big difference in power requirements.
It also depends on the voltage at your location.
If your question is this then see the following links:-

1. For Inverters:-
http://shop.store.yahoo.com/vanner-shop/pow15watinch.html
http://www.marine-monsters.com/front/products/inverter.html
http://www.behlman.com/acdc.htm
http://www.homestead-specialties.com/hs11a.htm
http://www.homestead-specialties.com/hs11a.htm

2. For MG sets:-
http://www.assoc-elec.com/motor_generator.htm
http://www.electromotion.com/main_rental.asp
http://www.westwoodcorp.com/mcii/products.html

3. For 50Hz generators:-
small
http://www.gohonda.com/generators/50cycle/
http://my.ecplaza.net/xjmec/1.asp

big
http://savoiapower.8k.com/sjmec.html
http://www.gregorypoole.com/powersystems/generators2.html
http://www.maesco.com/products/hp/hp_diesel/hp_diesel.html

If your question is for a 50Hz low voltage/current signal then
1. Buy a signal/function generators to suit.
2. Buy an IC if you wish to make your own.

1.For Function Generators:-
http://www.lambdaphoto.co.uk/srds360.html
http://www.harlanlabs.com/functgen.html
http://xtronics.com/kits/SK-301.htm
http://www.web-tronics.com/fungen2001a.html

2. For ICs / kits :-
http://www.mitedu.freeserve.co.uk/Circuits/Testgear/funcgen.htm
http://www.dckits.com/morkits3.htm
http://www.quasarelectronics.com/test_equipment.htm

These lists are by no means exhaustive. If you require more then let me know.
Hope this helps.

Regards



RE: Frequency (Waveform) Generator

(OP)
Sorry, I should have been more detailed.  I need 50Hz power, not signal.  Currently the client has a 56kVA rotary unit.  They are looking for something in the 1-5kVA range.  I do not however, know what it is they are testing.  The voltage in the building will be 120/208V, 3phase, 4wire.  I hope this helps.

RE: Frequency (Waveform) Generator

Hi Again,

Ok then how about frequency converters some are not up to 5KVA but is there the possiblity of more than one unit at different locations. (or does this thing their testing require the full 5KVA !)

As for AC/AC converters try
http://www.calinst.com/summ/freq.html#im
(the first is 3-15KVA but there are smaller ones on this page)
http://www.majorpower.com/frequency/majorfc2000.html
http://www.50hz.com/


These guys let you specify your requirements and they provide. See:-
http://www.georator.com/html/page3.htm
http://www.powerquotes.com/detailmanf.asp?Link=www.calinst.com&VendorID=213



Refering to my previous post
MG sets
http://www.assoc-elec.com/motor_generator.htm
(Give them a call & see if they can accomodate you)
or a converter
http://www.behlman.com/acdc.htm
(Thers is a 1.2KVA 110->220 50 Hz unit. The KVA rating is smaller but is there the chance they could have one per workbench ?)


If a Generator is required

http://www.gohonda.com/generators/50cycle/
(The LA60E/50Hz for example is a 5 KW , 100% PF generator but single phase)

Check them out you never know.

Regards

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources