I have a coldroom fan which must start running upon start button. At the start of running process, a timer should be activated to countdown 3 hours. Timer must be set once by designer, users must not adjust process timer. When there is power Cut, the timer must not restart, but must continue...
Need to start packhouse motors driving conveyor belts of Fruits. Want to use equal flip flop timer to run about 15 motors (0.37 -0.75kw).The last Belt must run first and the first(At Fruit entrance) must run last otherwise fruits will pille at the next consecutive belt. Must operate manually or...
Help, I have 415V, 150A which i want to transmit with ABC 50mmsq ALI 3 Core(XLPE)+ Bare Support over 350 Metre. From specs, 3 Phase vdrop is 1.43mv/A/m
Hence Vd=150*350*1.43/1000 =75V Phase to Phase. Which is too much. Where am I making the mistake?
Vitzwaters
I was asked by a workmet, he said can there be a control circuit to start may motors in sequence using one timer? i am thinking but u may aid me.
Vitzwates RSA
help design a change over control circuit for LV from utility line contactor to genset contactor in event of power cut. also want to remove load before switching off genset, when power is back.
