Answer Posted / pbho1128

Is there RCCB by one pole? If there is one pole RCCB, how
does it operate?

if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

1982

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Mention what are the different colors on wires indicates?

1328

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What is tranformer differtial?

2091

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What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

1900

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How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

2232

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Why is the frequency not changed during transformation of electrical energy in a transformer?

1467

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What is power relay?

1300

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what happens if dc supply is given and the remedies for it.

1877

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Draw the single line diagram of the power station?

1140

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what is resver in electrical enginnering with answer

1783

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What are the two segments of nyquist contour.

1164

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How does a battary stores charge in it? please explain in simple manner and in detail.thanks

2041

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

2119

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How equivalent impedance is calculated in thevenin theorem?

1220

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What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

1715

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