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Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
The KVAR rating is the "kilo volt-amp reactive" rating. Basically, it means that the capacitor can run say 10kV RMS at 10A RMS without failure. Its really just sort of a way to spec the RMS current capability, but saying it in KVARs is useful for power engineers.
In summary, your caps are great for VTTC use. In fact one cap alone probably has enough KVAR rating to handle your 4kVA VTTC (assuming a primary Q of 10 and its right on). But, you have to make up for a higher voltage and capacitance rating, so your bank is massively overbuilt for current capability.
Hi guys Thanks for the reply Steve . So hire is an update on the coil. I completed the filament supply, with a soft start (i think it is called that way). It uses a full wave rectifier (made out of schottky diods to have less forward drop) a 66 000 uF for smoothening. All of this is done to rise the voltage on the filament. If there is any concerns, recommendations or flaws please write. Here some pics
Hi guys I've done some progress on the coil so here a few pics. What do you think guys . And one question - is it possible to use two DIFFERENT MOTs for the the power supply
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
And one question - is it possible to use two DIFFERENT MOTs for the the power supply
That depends on the arrangement. With their secondaries in series then its surely OK, as long as one secondary isnt rated for significantly less current than the other (your output current is limited by the weakest link). If you want to parallel them, and their output voltages are different, then you end up "shorting out" the difference in voltage, and this is then a waste of power.
Hi guys it has been a while since i started this project and it is time to continue forward . It is going to be on 3 "floors". The first will contain the 2 MOTs the transformer for the +600 and - 200v and the supply for the filaments. The second floor will cointain the valves, the MOCs for the doubler, the high voltage diod, and the circuit for the greed. The top floor will contain the primary, secondary and the resonant capacitor. Here some pics of the progres. It is far away from finish, but you will get the idea . Please write if you see any obvious flaws -we are playing with serious voltage here
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4Kva Dual GMI-7 VTTC - FIRST SPARKS
. So hire is an update on the coil. I completed the filament supply, with a soft start (i think it is called that way). It uses a full wave rectifier (made out of schottky diods to have less forward drop) a 66 000 uF for smoothening. All of this is done to rise the voltage on the filament. If there is any concerns, recommendations or flaws please write. Here some pics 
