Active stator winding thermal protectionFound 3 free book(s)
Thermal Protection (For Winding & Bearing) PTC Thermisters / thermostats. RTD etc. can be embedded in stator winding on request. In case of frame sizes 250M & above Bearing Temperature Detectors (BTD) can be supplied on request. Earthing Terminals Two earthing terminals are provided on the body and one terminal is provided in the terminal box.
Stator Winding, 16% Shaft Coupling, 2% Bearing, 51% Causes of Motor Failures Motor Protection Solutions The Allen-Bradley® line of motor protection devices encompasses a range of simple, single purpose protection to the newer overload technologies featuring diagnostics and Logix integration. Bimetallic Overload Relays 75% of motor failures
If motor protection is not adequate, the stator winding can fail, and the squirrel cage rotor may be damaged or destroyed. The standard three overload starter should not be relied on to provide protection against single phasing. One reason for this is that local internal winding overheating can still occur even when line currents do not