I am currently working on a greenhouse that is manufactured entirely in Israel. There are 6 motors for shade curtains. The syatem supplying the building is a 120/208Y 3Ph System. I hooked up the motors correctly according to the diagram sent with the motors which was typical for a low voltage 3 Ph motor tap for a Y system. When we tested the motors originally the motors ran fine but were unable to completely handle the load(they stopped half way up). when we contacted the rep from Israel he said we needed to hook up the motor as if it were a Delta system and when we did they worked perfectly. Problem being that i can't understand why! Same voltage just tapped as if it were a delta system when it is actually Y. if i were to do this on a motor manufactured in the US what would be the result?. any info would be appreciated!!
signed, completely confused!!!
[ October 01, 2003, 09:18 PM: Message edited by: justin ]