CHAPTER 5: SETTINGS GROUPED ELEMENTSM60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-1995Figure 5-101: Standard motor curvesDuring the interval of discontinuity, the longer of the two trip times is used to reduce the chance of nuisance trippingduring motor starts.In some applications, the shape of the motor thermal damage curve substantially deviates from the standard.Furthermore, the characteristics of the starting (locked rotor and acceleration) and running thermal damage curves maynot correspond smoothly. In these cases, it can be necessary to use a custom curve so the motor can be startedsuccessfully and used to its full potential without compromising protection. For these conditions, it is recommended that
