Answer Posted / namrata

the earth fault when there is no neutral grounding jn the
system.

why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.

1859

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how to remover corona effect and hysteresis losses from contactor

2035

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How can we findout the maximum efficiancy of Transformer? At which load?

2088

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how to calculate magnetic force genrated by a coil ?

2208

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what is the main difference between power devices and signal devices

2194

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How can calculate the rating of a alternator for a given specific load with formula

2350

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What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

1803

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why Lightening Arrester Probe sharp at Top of telecom tower.

1566

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What is the working principle of servo motor? And explain it.

1939

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what is the terminal voltage of dc series generator running at rated speed at no load?

7639

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The height to which the liquid in a tank to be maintained for a certain constant velocity?

2006

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what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

1387

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static chagre

2167

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PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

2273

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In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

2267

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