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?
Answer Posted / an70n
faulty or defective tacho generator
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann
what is the criteria to decide conductor size of a cable ?
Can anyone send most commonley asked Instrumentation questions and answers in cement industry please?
What is Predictive Maintenance
What are primary elements of measuring pressure?
i have used level transmitter in starch cooking preparation tank. tank total height 2mtr.sometime LT display shows some error value when tank is fully empty and diaphragm side i already checked okay no problem in diaphragm area. field cable checked 24volt and mA shows correct value while tank empty mA is 4mA. 4mA i needed that 0% but display showing 10% or 15% percentage values are varying continously please give any good solution for me.....
what is stroke check for field instument transmetter's & AOV's
Identification of ss fittings, pilot valves, relief valve.
In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
How to Calibrate Radar Level Transmitter in Field
What is the difference between modbus,fieldbus & profibus
what is the electrical operation procedure for switching on 27.6MVA electric furnace.
Sir, I want junior executive, Instrumentation question papaer for IOCL, Plz send to arabinda.ghosh83@gmail.com
Pressure tx shows 1 mbar but we need 1000 mbar at this process condition .. how can we sort it out .