Answer Posted / prithiviraj

incase of neutral failure, the all single phase load gets
415v. so all the single phase load get damage

how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

5973

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On what basis the the size of Lightning arrester for buildings are selected ?

1648

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if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

1987

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I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions

2142

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What is the difference between the relay and the circuit breaker?

1115

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What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

2279

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regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

2260

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What are test signals and their significance?

1125

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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

2339

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what is auto re-closer?

2619

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WHAT IS THE CURRENT CARRYING CAPACITY OF 2.5/3 CORE HI TUFF CABLE,WILL IT SAFLEY CARRY 8.6 AMPS OVER 120 METRES,CAN YOU ALSO ANSWER WITH FORMULA FOR WORKINGS OUT ,THANK YOU 3RDYR APPRENTICE.

3563

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what is the relationship between phase & neutral

2579

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A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.

1980

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our industries ht line so power fluctation(once drop of power please rectify causes

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