what is sinwave ups

1 Answers   Exide,

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Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 Answers  

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we use Dyn11 trafo for distribution purpose, if it`s possible for replacing Dyn1. if it`s change means what will happen?

1 Answers  

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what is the use of neutral displacement relay

1 Answers   OCL,

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if there is a voltage difference between neutral and earth when we operate any instrument for fraction of time then where is problem?

1 Answers  

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How we can change the direction of rotation of Induction motor? Prove it using graphical

0 Answers  

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why always out of the 3 phase(RYB) of supply, in Y phase w.r.t the voltage is higher? on R & B phase the voltage will be lower as compared to Y phase?

1 Answers  

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hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

0 Answers  

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if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?

1 Answers  

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diff. between tension mode & speed mode

0 Answers   BSL,

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if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen

2 Answers  

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how can check the resistance of battery contact?

0 Answers   Cipla,

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