EJERCICIO PARA RESOLVER Elegir el contactor más adecuado para un circuito de Arranque de un motor trifásico (asíncronos rotor bobinado) con una tensión a 380 volts, con su respectiva protección bimetálica (Relé térmico)cuyas características son las siguientes:Tensión nominal:3800 V (bobina)Potencial total: 15kWFactor de potencia: 0,65 inductivo.

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?