Re: electrical sytem design for an elevator
What you are asking for is well beyond the intent of this Forum. We are here to help each other, but not to do each other's work. If you were having trouble understanding some aspect of the design of an elevator system, then tell us what you have tried and tell us what is giving you the trouble. Then we can help.
I might suggest talking with an manufacturer of elevator systems. Vendors are often willing to provide design information or support, especially if there is a chance that it may lead to a sale for them. But if you are going to be teaching a topic that you do not yet understand, then you are going to have to find another source for the information.