Author Topic: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz  (Read 1767 times)

Offline Mads Barnkob

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http://www.ebay.co.uk/itm/232306106373

Open to offers and can provide shipping costs on demand, else first see the shipping costs in the ebay link.

815 KVAR
1200 VAC
680 Ampere @ 10 kHz
Taps 1-2 @ 2.5 uF
Taps 3-6 @ 1.0 uF
weight 16 kg

Total capacitance with all taps in parallel 9 uF

Case is live!
« Last Edit: August 15, 2017, 08:53:43 AM by Mads Barnkob »
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Offline Mads Barnkob

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Dropped price 20%, additional savings available to forum members :)
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #2 on: November 30, 2017, 01:42:38 PM »
Hello Mads,


I‘d like to know if shipping to Luxembourg is as much as shipping to Germany. And are the „additional savings“ still available?  :)


Thank you!
Max

Offline Mads Barnkob

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #3 on: November 30, 2017, 02:28:47 PM »
Hello Mads,


I‘d like to know if shipping to Luxembourg is as much as shipping to Germany. And are the „additional savings“ still available?  :)


Thank you!
Max

Shipping to Luxemborg is the same as to Germany, 52 Euro, for a XL package with GLS just under 20kg

I will take off 10% of the price for forum members :)
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Offline T3sl4co1l

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #4 on: December 01, 2017, 01:00:44 PM »
FWIW, that's almost pennies on the dollar.  Those things go new for kilobucks!

I'd jump on it (even with shipping to here), if only I needed one. :P

Tim

Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #5 on: December 01, 2017, 01:35:40 PM »
FWIW, that's almost pennies on the dollar.  Those things go new for kilobucks!

I'd jump on it (even with shipping to here), if only I needed one. :P

Tim
I know that, but if you don‘t really need it, it‘s still a lot of money with shipping. However, because it‘s an excellent offer and knowing that I‘ll use it one day for sure, I couldn‘t resist ;)

One question: are the capacities of the tabs all against the case?


Kind regards,
Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #6 on: December 01, 2017, 02:20:44 PM »
FWIW, that's almost pennies on the dollar.  Those things go new for kilobucks!

I'd jump on it (even with shipping to here), if only I needed one. :P

Tim
I know that, but if you don‘t really need it, it‘s still a lot of money with shipping. However, because it‘s an excellent offer and knowing that I‘ll use it one day for sure, I couldn‘t resist ;)

One question: are the capacities of the tabs all against the case?


Kind regards,
Max

I only checked from terminals to water inlet connections, as these are where the brackets connect to. Case is mentioned to be live, but I am not sure which side of the capacitor that is, or it is undetermined due to capacitive coupling?

Ill check this weekend.
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Offline T3sl4co1l

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #7 on: December 05, 2017, 11:55:58 AM »
Hmm, that style is usually case = common.  Is there continuity between water pipes and case?

Tim

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #8 on: December 05, 2017, 06:40:33 PM »
I tried measuring on two different sizes of these that I have, both on unused units and refurbished.

There is no connection between case and water connections, the water connections are also sitting on ceramic insulators.
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Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #9 on: December 06, 2017, 11:04:26 AM »
Good morning,


Thank you for measuring! I tried to find datasheet, which should mention what „case live“ means exactly, but apparently NWL doesn‘t produce this unit anymore.


Kind regards,
Max

Offline Mads Barnkob

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #10 on: December 06, 2017, 12:30:21 PM »
Good morning,


Thank you for measuring! I tried to find datasheet, which should mention what „case live“ means exactly, but apparently NWL doesn‘t produce this unit anymore.


Kind regards,
Max

I also tried to locate a datasheet and writing them did not give any results.

They are custom made units and I think that I just found a datasheet for a similar capacitor and trusted it to be very much identical to that.

I can not find a datasheet for NWL on my NAS, so it does not seem like I saved it.

I looked at the WFC series capacitors: http://www.nwl.com/products/capacitors/wfc-series/

And from their datasheet they can actually both be live or dead, depending on design: http://www.nwl.com/wp-content/uploads/pdf/nwl-wfc-series-capacitors-product-data.pdf
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Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #11 on: December 06, 2017, 01:56:20 PM »
You found the same documents and conclusions as I did ;)

However I wouldn‘t call that document a datasheet... It‘s nothing more than a overview of the WFC series.


Thanks for looking anyway!
Max

Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #12 on: December 15, 2017, 07:46:42 AM »
Good morning,

Finally got my capacitor.
Everything seems fine - although it is apparently a bit older than I thought. Thus is of course no problem when it’s still working!

Unfortunately I can‘t test it soon, as I‘d have to build a serious induction heater first. ;) 

Kind regards,
Max
« Last Edit: December 15, 2017, 07:49:13 AM by Max »

Offline Mads Barnkob

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #13 on: December 16, 2017, 03:34:14 PM »
Good that it got there in one piece and hopefully without any bent connections.

I also had a hard time determine the age of these, because they all look the same, the new ones and the refurbished, some of the refurbished also got new labels and some had a older one. The corrosion on the aluminium varies, but they all have some, not the new ones ofc.

I am really looking forward to see your induction heater!
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Offline Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #14 on: December 16, 2017, 09:24:41 PM »
As far as I can see, there‘re no damages by shipping. You did a good job!

Unfortunately the induction heater won‘t be realised soon. Maybe in some months... I first want to finish my DRSSTC and have no time at all for either one.


Kind regards,
Max

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Re: WTS [DK]: NWL W00238 Capacitor 815 KVAR 1200 VAC 680 Ampere @ 10 kHz
« Reply #14 on: December 16, 2017, 09:24:41 PM »

 


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