Aap ne bhul bataya hai. Input 1,2,aur 4 no tappings me jata hai aur output 4 aur 3 no tappings se ayega. To relays on aur off yausa hoga ki input aur output yaiss hoga. Input 1 me voltage 90v se 108v rahega tab output 4 no se 200 se 240v ayega. Aur jab input voltage 108 v se badh jayega tab output relay on ho kar rahega jab tak input voltage 130v na ho jae. Yaise input 2 aur output 4,3 se aur input 4 aur outout 4,3 se ayega. Yahan ek hi firmula hai ki 240v/200v=1.2.Aur 90×1.2=108v, aur108×1.2=130v.hi hota hai.
