Stall current

Should the stalling time be less than the corresponding cold thermal image time for the same stalling current then the relay will not detect the condition. Either the relay thermal settings will need to be reduced, if possible, or a separate special timing relay used instead. 

The maximum amount of current drawn by a dc motor is the stall current. This is the current drawn by the motor when it is fully on but unable to move, such as occurs when a hand has grasped an object and the fingers can close no further. This is also the point of maximum torque... 

When the motor overheats, the thermostat opens, interrupting motorline current. Pilot thermostats mounted on the windings of larger motors trip the motor starter rather than interrupt line current. This method gives good protection for sustained overloads, but because of the thermal time lag between the copper winding and the thermostat it may not provide adequate protec tion for stalled conditions or severe overloads. 

W.C. Stallings, C. Bull, J.A. Fee, M.S. Lah, and M.L. Ludwig, Iron and manganese superoxide dismutases catalytic inferences from the structures. Current Communications in Cell Molecular Biology. 5, 193-211 (1992). 

We have tried to show how the current structural, biochemical, and mechanical evidence can be used to provide an oudine of how actin binding, Pj release, and the powerstroke may be coupled. However, concrete evidence remains in short supply. The structural states will be hard to define if they are coupled to equilibrium constants with values close to unity and fast rate constants (100—1000 s-1). Only in the presence of a large load, which brings the system close to an isometric condition, will the structural states have significant occupancy during a steady state. The use of stalled processive motors such as myosins V or VI may be one way of trapping the relevant structures. 

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