Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
How reliable do you need it to be? Ok perhaps three small 230V transformers wired in star, with a rectifier on the other side, and a comparator compared to a known reference, and then drive a contractor to drop out the motor, or disable an AC drive that would be running the motor? Most AC drives would allow you to drive in an analogue input 0-10V with a small PLC type program running on the drive. Input volts below a certain level; disable the drive output.
How reliable do you need it to be? Ok perhaps three small 230V transformers wired in star, with a rectifier on the other side, and a comparator compared to a known reference, and then drive a contractor to drop out the motor, or disable an AC drive that would be running the motor? Most AC drives would allow you to drive in an analogue input 0-10V with a small PLC type program running on the drive. Input volts below a certain level; disable the drive output.
Realibity is the major concern, I was thinking the same, would that be enough to protect the motor, what extra factor i need to add, to make the motor more protected.
Normally, a correctly dimensioned motor circuit breaker or overcurren relay gives suffcient and reliable protection against all kinds of overloads and voltage failure. It's not obvious why it should not be sufficient for your application.
Normally, a correctly dimensioned motor circuit breaker or overcurren relay gives suffcient and reliable protection against all kinds of overloads and voltage failure. It's not obvious why it should not be sufficient for your application.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
