Just want to know what the spikes highlighted in red circles mean on the schematic attached?
Help would be much appreciated
Help would be much appreciated
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NO!! it is not a current spike. It is a cad software artifact.it's a CURRENT spike on energizing a transformer, not a voltage spike, and it will only last a fraction of a second, usually too fast for fuses or circuit breakers to react to
Consider how many of them we see in the drawing and where in the circuit they are located and it becomes clear that they would not be thermal overload devices, neither the heater nor the contacts. They are a very poor attempt at a symbol that is rather obsolete.They almost resemble thermal O/L's!
Max.