In most process, speed of motor controlled by control
system with a reference pot . Now if i start & it becomes
uncontrollable, i.e.gets directly start & stop after certain
time.Then which reasons can make such problem? can motor
may be faulty?how?
Answers were Sorted based on User's Feedback
Answer / manraj meena
no. this problem is not related to motor,it may be due to
pot get faulty (variable point).thats why it run only
constant speed.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / amit
Actually There May be two Reasons Behind the problem
1)The baring of the motor can't bare that much of Voltage
at certain long time.
2)Change in Voltage Can Burn the Winding.
Is This Answer Correct ? | 1 Yes | 2 No |
how to make a calliberation for deffirential pressure
Any Transmitter Range (Span value) start from 2?
Difference b/w SCADA & DCS
I am a instrument technician. recently i attend interview and face one of question for DP transmitter ,the client asking about the calibration of DP transmitter ,am answer the calibration procedure, they will ask one more question. why open LP side in atmosphere? i did not answer that question. so please help me and explain the particular question. Dear firends waiting for your valuable replay
3 Answers Qatar Petroleums, Samsung,
Why the Proximitor supply should be Negative voltage? Why should not we give Positive voltage to the Transducer?
How many are the types of instrument cables in terms of No. of pair.
What is flow ,level, pressure transmitter ?and units?
a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?
what is three element in thermal boiler
How d.p. Transmitter can be applied to close tank?
why is not useing in boiler skin thermocople
what is the best method to measuring level in high pressure and temperture thank?