Answer Posted / tamil

To avoid the negative current flow

What is the Minimum winding resistance of motors ( small & big)? referance range

2367

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How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs

5252

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1922

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

1704

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why do we put a transformer on soak before loading it

1189

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What is power factor why we should maintain the power factor unless what will happen

1975

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HOW TO WORK A VFD?SAY SIMPLE METHOD

4500

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what is the maximim current drawn by 1 phase and three phase welding machine

1915

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Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?

2151

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What is Load sharing of Transformer ?

2076

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What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?

2044

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Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

3189

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Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

1855

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hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

2038

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why we are not giving the zone 1 trip command to the master trip relay

1795

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