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Registered Member #4215
Joined: Wed Nov 16 2011, 09:45PM
Location:
Posts: 32
What do you think about connecting two obits together in parallel and then double voltage by the voltage ladder.Obit parameters: (15kV 40mA, 20kHz) Two obits (15kV 80mA). Would I get 30kV and 40mA from the ladder or efficiency is less?
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Hi there,
aren't most oil burner ignition transformers usually designed to operate directly from the mains at 50 (or 60) Hz?
We can divide obits into three broad classes:
1. Those designed to operate continuously.
2. Those designed with a restricted duty cycle aimed, typically, at operation for a few tens of seconds until the gas jet lights. Continuous operation of this very common type will result in overheating and failure.
3. Electronic types such as the Cofi TRK series - which includes the TRK1-4 designed to operate on 12 VDC in for 2 x 12kV out.
And we can divide them again into a further two sub-groups:
A. Single ended secondary windings, where one end is earthed to the transformer core - an uncommon type, but still available from Fida and Cofi.
B. Centre tapped secondary windings - 4kv-0-4kV, for example - in which the centre tap is bonded to the core, and hence to Earth.
You should not expect to get the notional rated current out of obit transformers.
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Increasing voltage of Obit
