Lanterns/Fixtures > Modern

HID CWA ballast without cap

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Medved:
@Keyless: It was not as much the reduced power factor, but most likely the too low impedance in series with the lamp.
Apparently someone's observation than when the capacitor get shorted it cause lower than rated lamp current (made with MV ballast) is really apparently not true for all ballasts.
I would not risk burning out the CWA, when they are not made anymore...

Keyless:
@Medved

Thanks! I was wondering what it was that caused it. Normally I wouldn't wreck a good ballast but I had a case of these and was feeling adventures in the name of science, Ive always wondered what a shorted cap would do. 

Medved:
Then with such experiments just monitor the temperature and stop it in time, before it get really hurt... For the bulky copper&coil things the only enemy is the heat and it always take time to build it up, so it is not too  difficult to spot the unusual heating in time...

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