ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
AC-DC stage Ultra-Fast charger, how it's made?
by libellis - 06/25/22 12:17 PM
Childrens safety outlets
by HotLine1 - 06/25/22 10:22 AM
Your favourite food?
by NORCAL - 06/16/22 12:06 AM
Price action trading with RENKO
by gfretwell - 06/15/22 02:08 PM
Please Help Wiring DCDC Buck Converter
by gfretwell - 06/15/22 01:58 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 28 guests, and 19 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Feb 2005
Posts: 1
P
Pegitt Offline OP
Junior Member
I have a Hydro-Air HA 430 single phase 1hp motor and would like to change it to 2 speed,
is there a way to run it at a slower speed as i need to run it as a circulation pump but when i flick a switch it comes on to full power.

How do i go about doing this?

Specs

Motor

Ip-X5 220/240v 50-hz AC-1

Amps 5.2 Watts 1000

H(max) 16 m3/h 23

Capacitor

WB40200 MK SH

20uf +- 5% PO

AC400v B
AC450v C

40/085/21

50=60Hz

Any advice appreciated.

Pegitt

Joined: Jul 2001
Posts: 599
J
JBD Offline
Member
A single speed capacitor start motor can not be "speed controlled".

Well, okay maybe in some very rare cases, but only if the low speed is still fast enough to operate the centrifugal cutout switch or some other means of removing the capacitor is provided.

Joined: Jul 2002
Posts: 8,419
Likes: 3
Member
JBD,
I agree with you mate. [Linked Image]
A Cap Start Motor needs to run up to 75% of Full Load Speed to open the C/Switch.
If it doesn't, the start winding will burn out.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

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

 

Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Top Posters(30 Days)
Trumpy 7
triple 3
dobler 2
Asset 2
Popular Topics(Views)
292,910 Are you busy
224,940 Re: Forum
210,368 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5