A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg.
This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor.
And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM.
The question is : If the motor speed is +5,500 (RPM), what will be the temperature?
(-sign indicates that the motion is in reverse direction).
Answers were Sorted based on User's Feedback
Answer / ravi
mr ghulam mohammed can you plz give me full details for your
calculation.i mean the formulas.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / srikanth
At -3000 rpm temp=60 ma=4
At 0 rpm temp=60+124.6=184.6 ma=9.46
At 5500 rpm temp= 60+353=413
ma=14.45
At 10000 rpm temp=60+540=600
ma=20
| Is This Answer Correct ? | 0 Yes | 0 No |
Temperature is 492 deg.;ma output= 14.46
| Is This Answer Correct ? | 0 Yes | 1 No |
which type inter lock use in petrochemical refinery,and oil & gas?
what is a mapping in plc & dcs
1 Answers Arctern, ARM Cement,
Where are use of pressure,level,flow switches?and what is input and output
What is the maximum distance limit of 4-20mA and 0-10V DC standard signal transmission ?
what will be the output of the temparature transmitter if temp is 120 degre celcius.
1 Answers Base Automation, NTPC, PDO,
Why plc require in analog input 4-20amp & 0-10 volt?
Lube oil pressure transmitter local it's showing 9.8 kg/cm2 but dcs side it's showing 9.26 like that what is the reason?
Explain about signal isolator
any body pl suggest me the best type of transmitter for level monitoring of a distillation still which consists of highly corrosive and inflammable liquid.closed vessel height=5000mm especially in petrochemical industries
HOW WE ARE DECIDING WHILE PROGRAMMING IN PID CONTROLLER THAT WE ARE USING HEATING OR COOLING???????
What do you know about gail?
I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.
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)