Answer Posted / mohan

If u connect the data motor in star the power of this motor will be deceased 1/3 as like u connect a 15,HP motor in star it will be work 5hp motor

why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1410

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We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1453

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According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?

1453

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why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?

2594

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why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

2005

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dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

1906

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how to calculate transformer turn primary & secondary side 11kv to 420v

1788

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ratings of lightning arrester

1628

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In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

1431

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tell me some type of questions throught which i can prepare for exam and do my best

1554

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When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

1640

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What is float cum boost charging system?

1589

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What is resonant peak?

688

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1206

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Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?

2572

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