what are factors to be consider to design a HT & LT motor?
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in 3 phase (4 wire) star connection - is current pass through neutral??
what is skin effect?
How the train speed control?
Whet is IGBT.How it teste
how much GROUND & NEUTRAL VOLT maintain in data center.
Discribe type of fault in DOL and stardelta startor.
DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV
1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?
Are same transformer be employed for step up and step down services?
On wat basis TSM & PSM are set? Example.TSM=30% n PSM=2.5A....Hw they are set and how we come to know that the particular relay should be set to this value only?
How is the percentage impedence of a transformer fixed at design stage???
how can we change the supply frequency?