an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly
Measure voltage between neutral and phases , it appears that neutral is connected to a phase , being isolated
| Is This Answer Correct ? | 0 Yes | 0 No |
How is operate breaker failure scheme in substation
What is LOTO?
Why a ballast and ignitor is required in MH and other lighting fixtures
What is inrush current?
why the generating / transmitting voltage is in the order of multiples of 11(ie 11kv,22kv,33kv......)
if a number of plc s are there then how many modbus to be used
how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer
star delta starter control wiring diagram?
What is the function of Harmonics filter, and how to calculate that rating of the energy saving?
what is the difference between the characteristics of two different phase bushing of any transformer
How to reduce -234126219.6403 MVAr generation and by what?
i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)