Search found 170 matches

by Catavolt
Tue, 01 Nov 2011, 17:12
Forum: Electric motors and controllers
Topic: Copper rotors for sale
Replies: 10
Views: 3187

Copper rotors for sale

Just to stir the pot some more this small company is using alloy rotors.
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by Catavolt
Mon, 31 Oct 2011, 16:30
Forum: Electric motors and controllers
Topic: Copper rotors for sale
Replies: 10
Views: 3187

Copper rotors for sale

Hi James got the bugs out of those controllers yet? Start up torque is a big issue for any EV, From my real world experience with EVs an 15 years experience with Drives used with rotating Industrial machines. An alloy rotor motor gives you more start up torque point 1. Most Ev applications are limit...
by Catavolt
Mon, 31 Oct 2011, 14:13
Forum: Electric motors and controllers
Topic: Copper rotors for sale
Replies: 10
Views: 3187

Copper rotors for sale

You are right the full load stays around the same, Its the pull out and start up torque the is reduced with Copper rotors. The SEW copper rotor motor is around $500 extra. Here is a little artical on inrush currents . http://www.danfoss.com/NR/rdonlyres/AC8F7C52-F105-43E8-AF39-078F15225784/0/HighEff...
by Catavolt
Fri, 28 Oct 2011, 20:06
Forum: Technical and conversion discussion
Topic: Converting a gas Quad to AC
Replies: 95
Views: 16268

Converting a gas Quad to AC

you could use one of my 112M frame motors used in this video http://www.youtube.com/watch?feature=pl ... 9fi7AZmRVE

Catavolt AC 112M 72v 15kw cont peak45kw 7500rpm $2600AUD complete with controller.
by Catavolt
Fri, 28 Oct 2011, 18:20
Forum: Electric motors and controllers
Topic: Copper rotors for sale
Replies: 10
Views: 3187

Copper rotors for sale

SEW Australia sell motors with copper rotor options.
I have rewound them for people for EV's in the past.

You should note that a copper rotor motor was less torque than alloy ones.
This due to rotor resistance. High resistance rotor means more torque.


by Catavolt
Fri, 21 Oct 2011, 14:53
Forum: EV Racing
Topic: Newcastle Xprize
Replies: 15
Views: 4835

Newcastle Xprize

Time to register your machines http://hunterevfestival.com.au/category/ev-prize
I have entered a modified Mongoose CX200 24v to 36v.
3 x 20ah lead acid batteries @ $65 each from allpurposebatteries.com.au
http://www.allpurposebatteries.com.au/p ... ucts_id=52
by Catavolt
Thu, 13 Oct 2011, 19:14
Forum: EV Racing
Topic: EXFC/TTXGP Australia - 8/9th Oct
Replies: 4
Views: 2393

EXFC/TTXGP Australia - 8/9th Oct

32 eFXC / TTXGP Australian Electric Motorcycle Race Series 2011 - Round 3 - Wakefield Park http://www.youtube.com/watch?v=D3IlSLAD9iI&feature=channel_video_title <http://www.youtube.com/watch?v=D3IlSLAD9iI&feature=channel_video_title> The final race report for the first ever Australian Electric Moto...
by Catavolt
Tue, 11 Oct 2011, 14:35
Forum: EV Racing
Topic: EXFC/TTXGP Australia - 8/9th Oct
Replies: 4
Views: 2393

EXFC/TTXGP Australia - 8/9th Oct

Jason Morris Race Report CATAVOLT WIN FIRST EVER AUSTRALIAN ELECTRIC MOTORCYCLE CHAMPIONSHIP Newcastle’s Team Catavolt is proud to announce that they are the outright winners of the first Electric motorcycle championship to be conducted in Australia.    http://evmc2.files.wordpress.com/2011/10/battl...
by Catavolt
Tue, 13 Sep 2011, 19:34
Forum: EV Racing
Topic: Eastern Creek Formula Xtreme
Replies: 5
Views: 2062

Eastern Creek Formula Xtreme

TTXGP Australia Championship (eFXC) round 2 Winton Raceway 9th September 2011 Malcolm Faed http://www.youtube.com/watch?v=X0t_m-Tnft4&feature=channel_video_title After a successful inaugural race at Eastern Creek the electric motorcycle teams are back for round two of the eFXC / TTXGP Australian ele...
by Catavolt
Tue, 23 Aug 2011, 18:45
Forum: EV Racing
Topic: Newcastle Xprize
Replies: 15
Views: 4835

Newcastle Xprize

Hunter EV Festival launch a success by Ben on August 18, 2011 The launch of the Hunter Valley Electric Vehicle Festival at Lambton High today was a great success. 2NURFM and ABC radio interviewed Professor Tim Roberts and covered the event regularly throughout the day. Thanks must go to Peter Beach ...
by Catavolt
Mon, 20 Jun 2011, 22:47
Forum: Electric motors and controllers
Topic: Kelly AC Induction Controller
Replies: 1
Views: 1174

Kelly AC Induction Controller

http://kellycontroller.com/72v-kim-ac-i ... 85_88.html

About time now we will see some more AC toys
by Catavolt
Wed, 15 Jun 2011, 15:13
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

Had a great night at last nights AEVA meeting ,
Sydney members have passed the hat around and rased close to $1000 for Dan & I to enter the first round of the EFX/TTXGP.

Perth should follow suit for you Chris
by Catavolt
Fri, 10 Jun 2011, 14:51
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

There is some new rules and the entry fee up on the eFX site what a joke the entry fee is twice the price of the superbikes.http://www.formula-xtreme.com.au/xtreme ... enDocument
by Catavolt
Wed, 08 Jun 2011, 18:09
Forum: Batteries, charging, management and monitoring
Topic: DC - DC converter 80 - 140 Volts 8 - 10 amps
Replies: 5
Views: 925

DC - DC converter 80 - 140 Volts 8 - 10 amps

STD laptop power supply will take 360-90vdc, Just cut the plug and put DC in you can parrallel a 2 or 3 up. Most switch mode power packs can run on DC. http://forums.aeva.asn.au/uploads/1288/PLUGPACK.JPG FROM http://www.flickr.com/photos/splinter/5674568249/in/photostream/ http://www.flickr.com/phot...
by Catavolt
Mon, 06 Jun 2011, 15:12
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

Made into popular science mag
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by Catavolt
Thu, 02 Jun 2011, 20:36
Forum: Technical and conversion discussion
Topic: AC vs`DC debate
Replies: 25
Views: 4022

AC vs`DC debate

I sell custom Modified AC induction motors for use with the Tritium and Curtis(free loan of programmer) controllers.
Im Happy to work out a price for you I warrant my motors for two years just send me an email with the specs you hope to achieve. jon@catavolt.com.au
by Catavolt
Thu, 02 Jun 2011, 20:05
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

no nothing yet I think they put it up the week before the event did you sort out your shaft?
by Catavolt
Wed, 01 Jun 2011, 20:35
Forum: EV Racing
Topic: Newcastle Xprize
Replies: 15
Views: 4835

Newcastle Xprize

Am I reading the same rules I interpret the rules as this option 1 build a single seat electric bike or a car with a eye height of 1.2m with a battery pack cost no more than $200 that can average at least 30kph around a go kart track. Option 2 same as option 1 but with two seats and a battery cost n...
by Catavolt
Wed, 01 Jun 2011, 17:41
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

Here is an edit of the footage
http://www.youtube.com/watch?v=TtGykI8tlTM
by Catavolt
Tue, 10 May 2011, 19:02
Forum: AEVA NSW Branch
Topic: Tuesday 10-5-11 Terrey Hills Tavern
Replies: 4
Views: 1039

Tuesday 10-5-11 Terrey Hills Tavern

Ill be there.
by Catavolt
Tue, 03 May 2011, 15:02
Forum: EV Racing
Topic: E-Formula Extreme - Sydney presentation
Replies: 64
Views: 11188

E-Formula Extreme - Sydney presentation

Yes it was ga great day,
The brake input is back the front and the rpm is out of scale eg at 18 its 900rpm. the current was coming out of the controller and its not clean. but still its a great tool.

Here is Andys latest video http://www.youtube.com/user/evmotorcycl ... 7sQ30AUCmI
by Catavolt
Mon, 02 May 2011, 18:24
Forum: Members Machines
Topic: Voltron, the Electric RG!
Replies: 142
Views: 30431

Voltron, the Electric RG!

Can you rubber mount the motors at all.
by Catavolt
Mon, 02 May 2011, 18:12
Forum: Members Machines
Topic: Voltron, the Electric RG!
Replies: 142
Views: 30431

Voltron, the Electric RG!

You can also use two uni's. Love joy isnt the only one available.
by Catavolt
Mon, 02 May 2011, 17:49
Forum: Batteries, charging, management and monitoring
Topic: Vectrix Battery
Replies: 2
Views: 1029

Vectrix Battery

I think Mal has done one before user a4x4kiwi