ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Any Woodworkers here?
by HotLine1 - 05/11/21 10:34 AM
Do You Travel?
by Bill Addiss - 05/10/21 11:13 PM
Just be aware of this...
by gfretwell - 05/10/21 07:30 PM
Your favourite food?
by gfretwell - 05/10/21 06:13 PM
Lock-down Thread
by gfretwell - 05/10/21 06:12 PM
New in the Gallery:
2020 - 2021 Winter Project
Garden 2021
Who's Online Now
1 registered members (HotLine1), 19 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
50hx v 60hz #128039 05/22/02 02:30 AM
Joined: Mar 2001
Posts: 3
L
Leonie Offline OP
Junior Member
Will 50hz domestic appliances run on 60hz or will it damage the appliance?

Tools for Electricians:
Re: 50hx v 60hz #128040 05/22/02 02:52 PM
Joined: Aug 2001
Posts: 7,520
P
pauluk Offline
Member
Hi Leonie,

Quite a surprise to see someone from Cornwall in here! I lived in Chacewater (between Truro & Redruth) for a few years.

Many appliances designed for 50Hz will run on 60Hz just fine (so long as you take care of any voltage differences with a transformer).

Radios, computers, chargers for cordless tools, and other similar electronic equipment should have no problems.

You need to be a little more cautious when it comes to mains-driven motors, of which there are several different types.

The types of motors used in the typical blender, food mixer, hair-dryer, power tools, etc. will generally run on the higher frequency without any trouble, although may be slightly less efficient.

However, some motors used in electric clocks, record players, tape recorders, and such like have their speed sychronized to the supply frequency and will run too fast. Modern cassette decks & CD players will be fine in this respect though, because the motors don't run directly from the mains.

Re: 50hx v 60hz #128041 05/25/02 01:24 AM
Joined: Oct 2000
Posts: 2,721
Scott35 Offline
Broom Pusher and
Member
Adding to Paul's reply, here's some more stuff:

  • Resistance loads (99.99999999% True Power types, such as Incandescent Lamps and Resistance Heaters] will have an almost unreadable change between 50 Hz and 60 Hz (the only change would fall in where the RMS Current and Voltage levels meet between the two frequencies) - RMS power might fall a bit shy on 60 HZ, as 50 Hz is a little closer to DC. These readings would be within the milliwatt range as viewed from a 1 KW driven load (guesstamation),
  • Induction Motors would run slightly faster at 60 HZ (Sync speed = 3600 RPMs at 60 HZ, whereas Sync speed = 3000 RPMs at 50 Hz],
  • Ballasted loads (Like HID's and Fluorescents), along with Transformer driven loads will experience changes in Voltage / Currents, Etc.,
  • Synchronous Motors - such as the ones that Paul mentioned, will be running at 3600 RPMs (or an equivalent fraction of 3600 RPMs), which will make clocks run fast and Record Players spin too fast - AKA "The Chipmunks Have Landed",
  • Brush type Commutator motors (other than Induction or Repulsion types) will run at about the same speed, especially if they are Series Motors.


Scott S.E.T.


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Attic Rat
Attic Rat
Bergen Co.,N.J. USA
Posts: 524
Joined: December 2003
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 19
Admin 8
Popular Topics(Views)
278,839 Are you busy
211,999 Re: Forum
199,039 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3