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Hi dear friends i use 6 thyristor as switch in 3 phase like below: i trigger each thyristor on zero time in its phase . (i use zero crosing). it work when neutral is connect on star center .but it don't work when the neutral wire is disconnected . what is the problem ? i think for example in first time when thyristor's R phase is triggered because other thyristors are off it can't turn on (there is no way for flow the current in load ) but when the neutral is connected there is a way to flow current in load.now please help me to solve the problem . how must i trigger thyristors that work circuit with out neutral wire? thanks a lot . best regards. @i am sorry because my english isn't good. |
August 24, 2017 |
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