how many types of colling system it transformers?

Answer Posted / mark

ONAN
Oil Natural Convection, Air Natural Convection

ONAF
Oil Natural Convection, Air Forced Circulation

ONAN/ONAF/ONAF
Oil Natural Convection, Air Natural Convection
Oil Natural Convection, Air Forced Circulation
Oil Natural Convection, Air Forced Circulation

ONAN/ONAF/OFAF
Oil Natural Convection, Air Natural Convection
Oil Natural Convection, Air Forced Circulation
Oil Forced Circulation, Air Forced Circulation

ONAN/ODAF
Oil Natural Convection, Air Natural Convection
Oil Directed Circulation, Air Forced Circulation

ONAN/ODAF/ODAF
Oil Natural Convection, Air Natural Convection
Oil Directed Circulation, Air Forced Circulation
Oil Directed Circulation, Air Forced Circulation

OFAF
Oil Forced Circulation, Air Forced Circulation

OFWF
Oil Forced Circulation, Water Forced Circulation

ODAF
Oil Directed Circulation, Air Forced Circulation

ODWF
Oil Directed Circulation, Water Forced Circulation

ODAF/ODAF
Oil Directed Circulation, Air Forced Circulation
Oil Directed Circulation, Air Forced Circulation

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

1793


what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?

1693


how can i get an electrical c-certificate?

1877


What are the weight of 800KV DA,DB and DC type tower ?

2817


how to select electronic timer(Star-Delta) setting for diff. rating motors

1548






What do you mean by an instrument transformer?

743


Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

1953


What is the importance of earthing?

759


what is W.T?specify the acceptable range?

1600


What is the complete procedure of erection of electrical panel in industry

1475


Please define ampere?

772


How to calculate the Efficiency of Chiller

2953


What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

1282


What happens when ac supply is given as excitation voltage instead of dc supply

3271


What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?

1598