Thứ Tư, 17 tháng 9, 2014

High voltage measurement



I have questions concerning high-voltage measurement.
The goal is a measuring system to realize that kA for the voltage measurements up to 100 kV, currents up to 2-5 and frequency should be suitable up to 10 MHz.

High voltages and high testing jobs   frequencies again actually Yes Each other talk.
Ever, the less the voltage that could be measured height the frequencies. As the cable length is always less than the wavelength search.
What means, depending on the level the Freuquenz is the smaller the wavelength and the realization of the cable length is so difficult.

You may have an idea how you could solve the problem and how to realize such a suitable measurement system?
What sensors could use the best? Rogowski coils? Fiber optics? normal CT? or an other sensors?
I did little research that currently gives the most sensors on the market, not for high currents up to A few kA / height up zig kV voltages / high frequencies in MHz range are suitable if you do then the measurement error are big.

I thank you in advance and HV electrical Look forward to any further tips and information

Let me guess, it should be then still virtually free of charge and as a man project be realized in a very short time.

Thứ Hai, 4 tháng 8, 2014

Plasma lamp



I want to build me a high voltage cable jointing home-built plasma lamp and know müchte
voltage and current must be as high to a light bulb to the
light to bring?

If it should be only a plasma discharge you can everything from 5KV cars because the power is sufficient for a discharge

The Schatung works just fine with a DST Oppemann or Pollin and needs only three more parts out of the transformer. Can you verwemden also the elektroschocker with downstream cascade?

who has too little power... a transformer with cascade is better

I don't think that you are dancing a plasma bulb with a DST kann...die need same AC ;)
says with if I am mistaken

In a clear light bulb, I can produce my DST, both with a transformer plasma entladungen, however I would let the fingers of the discharges.
The most plasma lamps are supplied with a small Tesla coil: I can actually take the Zeilentrafoansteuerung with the halogen transformer for a plasma lamp or I get wiped one there?


There was outside a wire to you place bulb and
Since the 2nd pol from the obit tuned set... I'm in touch
pretty hurt and also the lamp is too hot.

Thứ Tư, 30 tháng 7, 2014

ZVS is not properly


Unfortunately, I'm not  distribution design  quite to peace with the output. I get only < 1kV when a transformer with 2x9V sek, 230V prim 18VA.
somehow I expected more. What could it be?
hum that comes from the 50 Hz of mains? The schematic is designed on a transformer and not on a Booger Printtrafo. Therefore, there is not really much power is transformed. Take control for the transformer maybe Paul's E-shocker. diode UF540
5Watt 10 K-ohm
5Watt 470 ohms
IRFP 250 transistor.
7 x WIMA film capacitor (600V ~, = 1200V)
Throttle with 200 uH
Z DIODE 1,3W 12V

Jo that zvs can swing on the basis of the transformer just not fast because the inductance in the compared to ferrite tarfos much larger is, the higher dei frequency more performance, wrap you yourself nen ferrite transformer. So I wanted to now no new threat to, and therefore poste I with in here.
I have the ZVS haute me built up and she ran super. She ran to 26 V and moved so when load 9-12A.
Then I incorporated it into a housing, Hung three Kondis between PSU and ZVS...
Now get nothing at all. First zeiigte power supply to mean that there is a short circuit. Well, the whole ruasgebaut again and again without kondis and so closed and there are still no output. The circuit moved to 480mA (as she did) in the idle, and now my multimeter anything displays.
Can help you me on what it could be.

Xenon ballast


Is my question can you build a Test equipment rentals Xenon ballasts itself?
because the is indeed only a HV power supply or? Yes but with high frequency ignition. So you can of yourself or would it be better to buy one. You have to assess that after your "can stand" itself. If you're really a Xenon lamp, pays it little from themselves to build and possibly the lamp scraps. I'm here at eBay that look because there's in bulk. did you mean one of the car, or how? Dan look but ma on the car scrap yard, because there are anything but cheap. The "normal" xenon lamps are already the AC for the House mains. If the arc lamp has an output of 1 kW, then the proposal throttle is about twice as big (and difficult) as a MOT. I would not wrap :)

The cheapest HQI lamps and inductors can be found probably in overhead projectors at the recycling center, however, most of which are discarded just yet with halogens are. I'm here at the vocational school or in the never operated a overhead with HQI seen. who would throw something like that because already on the cshrott, if you're still nichmal in nem mass circulation? I was wondering also exactly as me of Werstoffhof my confidence a 1kW HQI system fully functional (from a VLC) gave.
One thing is fairly certain: an electronics hobbyist/friend, wasn't sure, which has disposed of the thing. run the correct xenon burner with alternating juice, so 400 Hz and around the 85V ausem car.
for sone small it should hardly n problem ignition device to tinker his n. sone 1 2 or more kW lamp it's due to the electricity already n bit harder