need help,
please can someone tell me how can i calculate the main
breaker and branches breakers to distribution panels (MDB)
depending on the load ampere .. i really need it but can't
find any site >>
Answers were Sorted based on User's Feedback
Answer / nandhu
from the load u just calculate
the load current ,multiply by
1.5 ,diversity factor and find
the next higher value in the
breakers chart and u choose ,its
very simple
nandhu
| Is This Answer Correct ? | 1 Yes | 0 No |
refer to siemens ,Abb, schnieder ACB,MCCB,MCB
MANUFACTURER CATALOGS.
| Is This Answer Correct ? | 0 Yes | 0 No |
If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?
2 Answers Aditya Birla, Siemens,
WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI
Show the schematic arrangement of diesel power station layout and give its principle of operation.
If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)
hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com
what is the preventing maintenance of transformer
What are hrc fuses and where it is used?
What the reson for frequant instantaneous ground over current fault in our sync. Generator... 15 triping in 24 hr...
1 Answers HCPL, Jhunjhunwala Vanaspati Jhoola, Regen Powertech,
WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM
Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
What is mean by sink and source in term of PLC and drives,where and how they used in logic
What is the meaning of maximum demand
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)