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rajheman

Sat Sept 12 2015, 08:40AM

Registered Member #54872 Joined: Fri Apr 17 2015, 06:33AM
Location:
Posts: 25

Does anybody have idea about this magnetizer. As on this video.
Watch "Industrial Impluse Genarator Autopsy 18,000 joulâ€¦" on YouTube - Industrial Impluse Genarator Autopsy 18,000 joulâ€¦:

I want to build this .please help

Sulaiman

Sat Sept 12 2015, 09:44AM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

The best person to ask is Russ,

and he can be contacted here

DerAlbi

Sat Sept 12 2015, 09:03PM

Registered Member #2906 Joined: Sun Jun 06 2010, 02:20AM
Location: Dresden, Germany
Posts: 727

It should be straight forward.
You need a charger, a capacitor and an SCR and money.
WIt what exactly do you need help?

rajheman

Mon Sept 14 2015, 09:26AM

Registered Member #54872 Joined: Fri Apr 17 2015, 06:33AM
Location:
Posts: 25

rajheman wrote ...

Does anybody have idea about this magnetizer. As on this video.
Watch "Industrial Impluse Genarator Autopsy 18,000 joulâ€¦" on YouTube - Industrial Impluse Genarator Autopsy 18,000 joulâ€¦:

I want to build this .please help

I want to make magnetizer as mentioned in russ video model MZM3040
MZM 3040
Has input power of 230VAC
Out put power is
3000dc voltage with 30kA current with 4000 microfarad capacitance
With 18000 joules out put energy

This is my idea to do homemade magnetizer

In this below image
there are 2 micro oven transformer primary winding are connected in anti parallel and secondary winding are center tapped to get 4000volts with 75m amps .which is rectified with two 6kdiodes then charge the capacitor bank .the discharge from capacitor flow through fixture (copper winded ring where objects are placed to be magnetized ).

1442222757 54872 FT173053 P 20150914 142456 Nt 1

In above image I made question mark (?) at capacitor because I didn't have idea about how much capacitance is need to get a 30kA current.

I will make mini multiple capacitor bank in parallel to achieve high capacitance.
My question is how much capacitance is need for a capacitor to get 18,000j energy output (30k amps) by supplying 4kv DC with 75mamps current ???

dexter

Mon Sept 14 2015, 09:47AM

Registered Member #42796 Joined: Mon Jan 13 2014, 06:34PM
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Posts: 195

depending on how fast you want to charge the cap, full wave rectifier might be required

charging resistor is absolutely necessarily or else the diodes wouldn't survive

a switch is required between cap and coil - you need to first charge the cap then discharge it through the coil

as a switch you can use: heavy duty spring loaded mechanical switch, triggered spark gap or big SCR

DerAlbi

Mon Sept 14 2015, 03:27PM

Registered Member #2906 Joined: Sun Jun 06 2010, 02:20AM
Location: Dresden, Germany
Posts: 727

I didn't have idea about how much capacitance is need to get a 30kA current.

A few pico farads.

Sulaiman

Mon Sept 14 2015, 06:39PM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

rajheman, in his video clips Russ may look a little 'rough'
giving the false impression that this kind of equipment is just a little bit dangerous
Russ is very experienced, and this kit is a one strike you are out deal.

please take this constructively;
you had to ask such a basic question
and your circuit diagram shows no sign that safety is uppermost in your mind
so even though it is doable, please do not.
Start with any voltage but current limited to a few mA
not spectacular but fun and you learn a lot (quickly .. ;)

can't loose 4HV members !

2Spoons

Mon Sept 14 2015, 09:54PM

Registered Member #2939 Joined: Fri Jun 25 2010, 04:25AM
Location:
Posts: 615

Ok, lets just take a step back for a moment, and ask one very important question - what do you want to magnetise? Because the whole system starts there. From there you can calculate the field intensity needed to achieve the desired remanent field, and from that you can work out how much energy is required to create that field. Note that energy is the determining factor, not peak current. Peak current drops out of the combination of energy and number of turns on your magnetising head - so you have some control there in your design.

Be sure that you build your mag head really solidly - they have a tendency to unwind when hit with such a massive pulse!

Sulaiman

Tue Sept 15 2015, 01:14PM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

2Spoons, I've only made or used steel magnetizers where roughly, power usage and copper weight seem the main consideration,
You mentioning that it is the energy lit a little lightbulb for me in another area, thanks.
Out of curiosity, do you happen to know what are easily achievable amateur peak flux densities .(some volume, say 10cc)(no LN2 or special machinery) ?
In these high peak flux air core magnetizers,
in practice, does energy absorbed (MG.Oe) by magnetization form a significant proportion of the energy input?

2Spoons

Tue Sept 15 2015, 10:32PM

Registered Member #2939 Joined: Fri Jun 25 2010, 04:25AM
Location:
Posts: 615

My experience comes from 20 years ago, working for a whiteware manufacturer where we made our own motors. We were achieving something like 4T in the magnetiser head, in order to magnetise a bunch of ferrite segments in an injection moulded rotor. The mag head was a big chunk of laminated iron (roughly 40cm x 40cm x 10cm), with about 6 turns on each pole, from memory. Nothing fancy about the system - just a big fat cap bank, with big fat thyristors and big fat copper cables.

So on that basis at least 4T should be achievable by the enthusiastic amateur.

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