what is working parincipal of a ht transformer

0 Answers   Pidilite,

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what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

0 Answers  

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What is non-minimum phase transfer function?

0 Answers  

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how to select the cables based on amps ratings ? how to calculate the amps and how to select the cable size

1 Answers   JV Electricals,

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Explain UPS

1 Answers   Powerica,

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how to check the 3ph capacitor is good or not.

14 Answers   MacLellan, Yash Technologies,

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Difference between directional over current and non directional over current ?

2 Answers  

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Can we use HRC fuse inplace of semi conductor fuse ? What are difference between them?

3 Answers  

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100V supply is appllied between 500K Resistance bulb. for 1 kwh energy, how long time the bulb will glow? explain the calculating method.

3 Answers   Bhel,

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what happened when we supply a dc current in dc motor?? can it worked properly?

0 Answers  

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what are the disadvantages in GIS over AIS

0 Answers   Tata Steel Limited,

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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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