The discussion centers on a simulation issue with a normally open contact relay in Multisim, where a voltage of 15mV is observed on the main circuit side when the relay contacts are open. Users inquire about the normalcy of this voltage and suggest checking initial conditions and potential leakage if a solid-state relay is used. The conversation emphasizes the importance of understanding relay behavior in simulations and the need for accurate schematic representation.
PREREQUISITESElectronics engineers, circuit designers, and students working with relay simulations in Multisim, as well as anyone troubleshooting voltage issues in relay circuits.
Physicist3 said:Hi, I am simulating a switch system on multisim which I have constructed using a normally open contact relay. The problem I am having is that before the coil is energised, I am observing about 15mV on the main circuit side when the contacts are supposedly open. Is this normal? When the coil is energised and the contacts close, the voltage raises to the value of the supply as would be expected?