Trim Resistor used in Transformer Hot spot circuit
Trim Resistor used in Transformer Hot spot circuit
(OP)
Can someone explain what the purpose of the Trim Resistor is in the circuit for Transformer Hot spot measurement.
The circuit i saw has the B-phase winding CT connected to the Trim resistor and the Heater coil, so the heater coil and trim resistor are in parallel.
Thanks
The circuit i saw has the B-phase winding CT connected to the Trim resistor and the Heater coil, so the heater coil and trim resistor are in parallel.
Thanks





RE: Trim Resistor used in Transformer Hot spot circuit
For new equipment it is mostly handled electronically with a digitally-based thermal model and there is no need for this resistor.
David Castor
www.cvoes.com
RE: Trim Resistor used in Transformer Hot spot circuit
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(2B)+(2B)' ?
RE: Trim Resistor used in Transformer Hot spot circuit
Thanks guys
RE: Trim Resistor used in Transformer Hot spot circuit
David Castor
www.cvoes.com