Difference between PLC and SCADA ? What are merits & De-merits of PLCs ? What are merits & De-merits of SCADAs ?

3 Answers   Ambuja,

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WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

0 Answers  

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I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com

0 Answers  

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In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?

0 Answers  

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what is the function of choke and starter in a tube light??

2 Answers  

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why we use delta connection in transformer

2 Answers   UPPCL,

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what is the difference between linear choke and suction choke?

0 Answers   BARC,

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What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

0 Answers  

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Describe kW and kva and difference between

4 Answers   BTM,

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There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in series. Load is taking 15 A current.What will be the back up power for this UPS on same load?

1 Answers   BS, Dynamic Software,

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1. When do you use a VFD motor? 2. If the ceiling fan is on slow speed, does it consume less electricity? 3. If we want the fan to consume less electricity at low speed, what do we have to do? 4. What does “battery of 180 AMP HOUR” mean to you? 5. What does “battery of 180 AMP HOUR” mean to you? 6. If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

6 Answers   Asian Power, Bhel, Focus, Focus Energy, L&T,

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what is the isolation transformer. what is the isolator?

0 Answers  

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