Answer Posted / roy.bijoy067
a relay use in conventional system and it working/operation
is fixed put plc is used in automation system and it
operation can be change according to our need.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
some basic standard questions on transformer.
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
What are the characteristics of negative feedback?
Why is negative feedback invariably preferred in closed loop system?
Currently what is the highest capacity (MVA) of SPPg generator available in the market?
How to calculate loses in transformer of 160 KVA ?
What are the advantages & disadvantages of a group electrive drive?
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
If i am running of spindle at 2000rpm ,but How to spindle stop at the second I am resetting the machine in CNC machines
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
What is contract demand in solar system?
What is the operating principle of turbo-generator.
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
Explain about technical and non technical losses in distribution system?
what is saturation kit?which use above 15 kw motors panel side.