I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Co

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???

Question Posted / wap

1 Answers
3868 Views
I also Faced
E-Mail Answers

I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air ..

Answer / k.prakashchandra

Neutral- shift due to load

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what is the significant for using two types of voltage(line voltage & phase voltage)

1 Answers NTPC,

what is the preventive @ predective maintenance

2 Answers

What is the main difference between generator and alternator

4 Answers

how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

0 Answers Bhel,

What is the differance between vacuum breaker and vacuume contactor

1 Answers

WHAT IS THE DIFFERANCE BETWEEN IP54 AND IP55

2 Answers

Is it possible to convert Dependent sources to its equivelent current or voltage Sources ?????

1 Answers Zen Technologies,

Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com

1 Answers

why we short ckt the secondry vo5tage/ winding in transfr and motor?

2 Answers

At what point crngo works like as crgo

0 Answers

Please mention available current rating for MCB,RCCB,MCCB in the market or any website

1 Answers ETCO,

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

0 Answers HPCL,

For more Electrical Engineering Interview Questions Click Here