Answer / natha

in dc traction in mumbai.the starting torque required to pull train is large here series motor comes into play and after a desired speed is achieved shunt motor runs the loco.

Answer / seshadri

we use differential compoud motors in electric welding

how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

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why we are using the ac supply in domestic purpose, why don't use dc supply.

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what are the causes for strip heater failure ?

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i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

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how to calculate induction motor rating (HP) if name plate is missing from motor at site condition ?

6 Answers   ABB, apatel, Bhel, Spatel, Voltas,

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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]

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What is the minimum value required for Neutral to Earth in UPS Panels

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What is the current carrying capacity of 35sq.mm flexible cable?

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Most electrical terms denoted by first letter of its name but Why current is denoted by "I".

4 Answers  

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Why GRR starts from 60% of motor speed why not less than 60%?

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hello... i am preparing for GET. please send me previous papers..

1 Answers  

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why we measure output of transformer in kva?

1 Answers  

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