Answer Posted / touch2gobi
Derating Factor value depends upon the motor environment,
For example:
Motor design temp – 45 deg C
But motor location ambient temp 65 deg C (near any burner
or heat source)
So motor performance (rated power) will reduced due to
ambient temp.
For that motor manufacturer given Derating Factor value.
Ex:
Rated power = 45 kW
Derated power = 42 kW (Operating Temp – 50 deg C)
Is This Answer Correct ? | 25 Yes | 19 No |
Post New Answer View All Answers
what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?
What is feed factor and its Importance in cement industry? How we can solve feed factor?.
what is stroke check for field instument transmetter's & AOV's
how to calculate range of level transmitter?
Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.
use of split range ? where it is used ? in which control loop it is used ?
What is standard procedure of manual mapping in Radar type level transmitter?
you are on site,the plant trips,you are approached by operations,what do you do?
How to calibrate Field bus transmitter? procedure ?
can you send remote seal interface level transmitter calculation steps for oil water saperator.
State bernoulli’s application.
DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.
I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?
Explain the use of hair spring in the pressure gauge.
Valve positioner and actuators in detail.