3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

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what is the main function of capacitors in mccs.

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The MCB circuit breaker have a voltage rating of 440VAC it's possible to supply a voltage of 480Vac

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what is allowed value of zero sequence impedancce of 6.6 kv nuetral earthing transformer ?what is the actual value

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What does negative slip of an induction motor signify?

10 Answers   Tata Elxsi,

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What is the difference between Off line UPS and Line interruptible UPS?

1 Answers   Etisalat,

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how to calculate the tarriff for an industry whose kva demand is 10 mva

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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

0 Answers   Jindal,

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what is Micrologic 6.0A advantages over Micrologic 2.0A

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assume we are put both df/dt and vector surge relay in same bus the df/dt relay setting is +5 hz an -5HZ. we want operat the vector surge relay before the df/dt how i calculate the setting of the vector surge relay.

1 Answers  

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what is the Excaste meaning of CT Saturation?? 10 P 20, 15 VA, what is the meaning of 10, & 20. if the CT polarrity changed what will happened?? what is the differece between measuring CT & Protection CT?? what is the Saturation Point of measuring CT & Protection CT??

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Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load

2 Answers  

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