Answer / Ashutosh Kumar Jatav

An electronic energy meter failure in the electromagnetic field can be due to several factors such as improper grounding, faulty calibration, magnetic interference from other devices, or damage to the sensor. The most common defects might include issues with the current transformer, voltage transformer, or communication module.

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1 Answers   L&T,

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How Size of Busbar is determined for a particular load.

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We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

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PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com

0 Answers   NHPC,

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What is a differential amplifier?

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How to calculate the Short Circuit Impedance in Transformer?

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Size of the power cable like 1.5,2.5,4 sq.mm which area calculated from whick area or how specified the size?

1 Answers   MRF,

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which of the following loss varies with the load a)hystresis loss b)eddy current loss c)copper loss d)core loss

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From the point of view of accuracy in the Measurement of Electrical energy should we select a potential transformer or a capacitor voltage transformers?.Kindly support your reply with reason and justification.

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Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

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cable armor

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Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 Answers  

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