The bridge rectifiers that came with the system are BR860A. They are no longer available. Supposably HVPFR6 are the subs they say should work. Over a few months of operating, the HVPFR6 blows and shorts closed. Anybody have any advice on a better Bridge that can handle these voltages. F101 and F102 are 5amp slow blow.
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3 serial connected 800-1000V controlled avalanche in each leg (or at least two 1.6kV ).
If you can find Philips BYW96 (they are very small and cheap, and have been very reliable).
Do NOT use normal diodes (1N4007 or alike) in serial WITHOUT any additional arrangement that will assure equal voltage sharing, because those could go short one by one (do to uncontrolled voltage sharing) even if the voltage total is much higher than what is needed.
If you can find Philips BYW96 (they are very small and cheap, and have been very reliable).
Do NOT use normal diodes (1N4007 or alike) in serial WITHOUT any additional arrangement that will assure equal voltage sharing, because those could go short one by one (do to uncontrolled voltage sharing) even if the voltage total is much higher than what is needed.
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Thanks for the input... We can get the BR850A for $248.82 ea. I'll have to bring this up to my shop...
Appreciate
the help...
Appreciate
Bit expensive i would say, 12 of the BYW96 should cost less than 10% of that, but its a beautiful bridge.
Btw, Semikron SKA1/17 is still in production, and 2 of those serial in each leg (each diode has 1.7kV avalanche voltage) .
A total of 8 would set you back €6 or so, plus shipping
Btw, Semikron SKA1/17 is still in production, and 2 of those serial in each leg (each diode has 1.7kV avalanche voltage) .
A total of 8 would set you back €6 or so, plus shipping
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Or 4 Diotec BY6's - 6KV, 1A, $1.79 each in single unit quantities.
L1 L2 240V AC
Do you hook this on two phases of a triphase mains power. Is this common at your place ?
Just curious.
The only place, I know in Europe where they do this is Belgium where they keep a 3X230V electric distribution network.
Do you hook this on two phases of a triphase mains power. Is this common at your place ?
Just curious.
The only place, I know in Europe where they do this is Belgium where they keep a 3X230V electric distribution network.
No, its standard 240v US. Same as what goes into every house. They call it 240 single phase but I call it split phase because all US houses use L1 for one side of there breaker panel and L2 feeds the other and for 240 appliances L1 and L2 feed a 240 breaker.
This is actually part of a MALSER system, (RAIL), that airplanes use to help them land. It's a visual aid, the 5 strobes flashing toward the runway that pilots can see as they are starting to land. It's been in service since the early 60s...but rebuilt many times.
This is actually part of a MALSER system, (RAIL), that airplanes use to help them land. It's a visual aid, the 5 strobes flashing toward the runway that pilots can see as they are starting to land. It's been in service since the early 60s...but rebuilt many times.