Answer / e hanumanthu

Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads.

for same rating of a transformer and induction motor which one will have higher magnetising current flowing?

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iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]

1 Answers  

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SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

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How isolater function when installed inelectrical 440V wiring

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we know that dc motors are more superior then three phase induction motors in torque generation though they are not much used in industries why?

5 Answers   Essar, L&T,

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How to find out kvar from any particular load capacity give a formula

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When alarm is activated in buccholz relay in transformer

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What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

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Why the vector group of excitation transformer in static excitation system is Dy5?

2 Answers   CSEB, SRF,

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what is the purpose of silicon dropper used in battery charger?

0 Answers   KNPC,

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can u tell the difference between star - star transformer and delta to delta transformer?

2 Answers  

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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

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