Tests On a Martin Rotatory Converter
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Because of the squirrel cage winding, the Martin Rotary Converter starts as an induction motor. When the armature comes to very nearly synchronous speed it is pulled into step by the shunt field. The squirrel cage winding also prevents hunting, and also shunts the armature flux from the shunt field at start so that there is no high e.m.f. set up in the shunt field 10 as is the case In many machines. In this manner all danger of a breakdown of the insulation of the shunt field is avoided and no ...field break up switch is required.
In connection with the study of the field structure it will be well to study the flux distribution curves in order to understand how the the desired results are obtained with this peculiar type of field structure.
From a study of the flujJ distrib- ution curves it is probable that a third and a fifth harmonic are present in the voltage wave. These, however, are apparently of minor importance in this particular machine. The "hump" in the full load flux wave is probably due to the increase of the flux from the series field and the hollow is due to armature reaction.
What to read after Tests On a Martin Rotatory Converter?
You can find similar books in the "Read Also" column, or choose other free books by Bacon, M. F to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Because of the squirrel cage winding, the Martin Rotary Converter starts as an induction motor. When the armature comes to very nearly synchronous speed it is pulled into step by the shunt field. The squirrel cage winding also prevents hunting, and also shunts the armature flux from the shunt field at start so that there is no high e.m.f. set up in the shunt field 10 as is the case In many machines. In this manner all danger of a breakdown of the insulation of the shunt field is avoided and no ...field break up switch is required.
In connection with the study of the field structure it will be well to study the flux distribution curves in order to understand how the the desired results are obtained with this peculiar type of field structure.
From a study of the flujJ distrib- ution curves it is probable that a third and a fifth harmonic are present in the voltage wave. These, however, are apparently of minor importance in this particular machine. The "hump" in the full load flux wave is probably due to the increase of the flux from the series field and the hollow is due to armature reaction.
What to read after Tests On a Martin Rotatory Converter?
You can find similar books in the "Read Also" column, or choose other free books by Bacon, M. F to read onlineMoreLess
Read book Tests On a Martin Rotatory Converter for free
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