why 1.7Uo for HV cable Hi pot test?IE standard why?

0 Answers   ABB,

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What kind of battries are generaly used with Disel Generator?

1 Answers   Exide,

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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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why we are grounding the neutral?

1 Answers   GE,

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types of arc quenching methodes

2 Answers  

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How to Decide(calculate) Bush bar size for copper and aluminiam ?

0 Answers   Essar,

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If I fill the form of engineering services and I left the exam de to navoidable reasons . Will it counts my one attempt

2 Answers  

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How will u calculate wire size according to current rating?

2 Answers   Global Computer,

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what is the effect of power factor to (a) voltage (b) transformers (c) generators (d)transmission lines

4 Answers  

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How to calculate cable sizing

5 Answers  

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WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

0 Answers   UltraTech,

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Please explain, how to test vector group of tranformer(Delta y1) . Thank

0 Answers   PGCB,

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