Hello,
I’m sharing the time current curve for TOC relay and MV motor.
According the relay curve, pickup point is sitting the right after the blue box.
Is that meaning we don’t have protection for inside the blue box? or I’m missing something?
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What relay is being used and what are the protection settings?
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GE IAC 77B TOC relay and no matter the settings because I just curious about that the relay has a gap between pick-up point and time-dial curve. Tima-dial curve starting apprx 1.5x tap setting.
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When you look at the motor running overload thermal limit curve, it is starting right after the pick up point.
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