Err, yeah I meant that. Anyway, don't Allertors and P-15s (at least the one that Ian tested that started smoking) use start caps?Jim Z wrote:startup current isn't due to friction but the mass of the armature. after all, it's a big lump of iron and copper, so it takes some "oomph" to get it moving.
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Rick K
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Single phase ACA sirens use start and run capacitors. 3 phase ACA sirens (and any 3 phase siren) don't use any capacitors.Kasm279 wrote:Err, yeah I meant that. Anyway, don't Allertors and P-15s (at least the one that Ian tested that started smoking) use start caps?Jim Z wrote:startup current isn't due to friction but the mass of the armature. after all, it's a big lump of iron and copper, so it takes some "oomph" to get it moving.
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murrfarms
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Yes, the single phase ACA sirens do use both start and run capacitors to operate. They have a little relay that kicks on both capacitor banks (start and run) while the motor is first starting up, and after a pre-determined amount of time (once the motor gets up to speed), the relay drops out the starting circuit and it continues to run with the bank of run capacitors.Kasm279 wrote:Err, yeah I meant that. Anyway, don't Allertors and P-15s (at least the one that Ian tested that started smoking) use start caps?
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BotdfAllertor
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