Why we apply 100ADC for contact resistance measurement?.If we apply AC what will happen

4 Answers  

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what time should we set to come on star contacter in stardelta starter?and for what reason we hav to set such time delay range?

2 Answers  

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1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

0 Answers  

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What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

0 Answers  

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what is swirl induction in i.c engine????????

1 Answers   Ashok Leyland,

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why does the magnetic balance tests at transformer?

0 Answers  

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why we can't use more then 50 hz in india ? Is it possible ?

7 Answers   DVC,

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what is the speed of mixie?

5 Answers   Keltron, TCS,

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Why can not you store AC power in battery like DC power?

1 Answers   NTPC,

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what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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Why Earthin is not required in Xformer primary side when it is in Star / star?

2 Answers  

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why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?

2 Answers   INEL, Siemens,

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