Thermal winding protection can come in a number of different options, but the fundamental principle is the same. Temp sensors get embedded into the motor winding What is thermal winding protection? After investigating, the manufacturing company determined that the servo motor did have a PTC thermistor thermal winding protection, but it was not connected to a thermal monitoring source. The motor needs to be sent out to a shop to be rewound or completely replaced. Ultimately, the motor windings fail and the production line goes down. This higher RMS current creates an accumulating amount of energy in the form of heat inside the motor windings. Over some time, the higher cycling results in a higher RMS motor current. The machine begins running well but then the company decides they need faster output so the motor’s duty cycle is increased. Let’s visit a hypothetical example – a manufacturing company utilizes a servo motor on a new assembly machine. EASA has a nice page with some good pictures of typical motor failures – you don’t want this to be you.
This creates a level of protection against excessive winding temperature that could eventually lead to permanent winding insulation breakdown and failure. Thermal winding protection for motors is a key component in operational automated equipment.
0 kommentar(er)
