Answer / p.vasudevan

if we connect capacitor bank in generation side inverse voltage will be increase . it means in ac transmission line losses should be there so transmitted voltage will be getting drop due line impedance and insulator earth capacitance , that case connecting the capacitor bank in generation .

Answer / antaratara ghosh

the reasons are:
1. Capacitors will absorb harmonics as their impedance
decreases and frequency increases, resulting in overheating
and increased stress that leads towards premature failure
2. Capacitors will resonate with the system impedance,
causing high voltage spikes and current upto 10 times the
normal level.
3. Switching of capacitor banks creates voltage transients
resulting overvoltage to loads and can damage solid state
equipments like variable frequency drives.

As we know that during saturation test of CT from secondary side, the current in secondary shoots up after core saturation. How core saturation effects the secondary current?

2 Answers  

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

0 Answers  

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what is Use of Stones/Gravel in electrical Switch Yard??

4 Answers   Sanghi,

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I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase, before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

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In 11KV Double pole structure for each phase we are using Disc one Insulator. Why we are not using 2 r above insulators instead of one insulator?

4 Answers   Genus,

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Why do we use only Sinusoidal Wave in AC supply why not the Square,Triangle or Sawtooth etc?

2 Answers  

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Differentiate between voltage and current feedback in amplifiers?

0 Answers  

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# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

0 Answers   HPCL,

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what's the simultenous maximum demand (SMD)..what the diffrent MD and SMD?

0 Answers   HAL,

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What is the difference between RCD & RCCB, Where it can be used

3 Answers  

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slor cell made?

1 Answers  

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if earthing is used in place of neutral how the circuit completd.

7 Answers   Epitome,

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