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ivan582021-11-10 17:55:41
Electronics
ivan58, 2021-11-10 17:55:41

Does the machine kick out due to a malfunction of the pulse transformer?

There is a pulse ignition transformer with a voltage of 6 kV. If it is disconnected from the control board, then the machine does not kick out. What needs to be checked? For example, the primary winding of a transformer for an interturn short circuit, but as I understand it, it is low-resistance and cannot be kicked out of it?
What about a Mosfet circuit or a storage capacitor? Where is the short circuit located

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3 answer(s)
V
VT100, 2021-11-10
@ivan58

Is there a fuse in the device? Or already "bug"?
Roughly check the transformer - you can use a 12-24 volt battery. Briefly connect it to the primary and see if there are sparks on the secondary when the circuit is opened. If not, interturn is very likely. As an option - use one 1.5-volt element for the primary and neon for the secondary.

P
pfg21, 2021-11-10
@pfg21

usually look at the inductance. at short circuit, the inductance of the winding is greatly reduced.
coils in a transformer are interconnected, i.e. a short circuit in any coil will underestimate the inductance of all connected coils.
in the off state, look at the current consumption, it is usually extremely small.

S
SOTVM, 2021-11-11
@sotvm

check the packet,
bp is not in business here, the
starting current is limited by a resistor ≈1-5 ohm
or it would burn out
or or

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