3 winding leads are connected series connection remaining winding leads are RYB respectively so this is star connection terminal block, Star type is where 3 coil ends connected and 3 starting points connected to 440 v ( R Y B ). Its called the star connected motor. In addition to this, star and delta connections are when there is in KVA or VA if we use neutral then due to load there is a power factor includes then be KW. So, the star connections are three phases with one neutral. One more thing is that when we get the supply from any generated transmission system then there is no fourth wire means neutral. Up to this this is a Kva or va
When this KVA or VA used for distribution then need to delta star transformer, delta winding for KVA and star for three phase with neutral up to this this is a KVA. When we connect load then power factor includes that's 0.9 or may be less.
