NOTATIONS 259 



ifi Initial equilibrium flux 



V?' Flux for maximum permcalMlity or minimum reluctance 



^p" Flux at saturation 



(fa l?osidual flux 



tpG Gap flux 



r Field energy 



u .r/.4(Ro or x/x^ 



W Mechanical work done by magnet 



.To A(Ro 



TIME : 



t Time 



U Operate or release time 



/i Waiting time 



t-i INIotion time 



^3 Stagger time 



Ie Eddy current time constant; LxG' e 



tc Winding time constant; L\Gc 



is Sleeve time constant; LiG s 



