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).
Answer Posted / sk
253.84 deg C (it is 5500/650*30)
Is This Answer Correct ? | 1 Yes | 6 No |
Post New Answer View All Answers
what is the difference between attemperator and desuperheater ?
Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?
Explain about safety integrated level protection? . How it was differ from other protections ?
Conversions
while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?
Why is the orifice tab provided?
What is the working principle of the magnetic meter?
What is the purpose of the analyzer in petrochemical plant?
PT RTD Range: -200 to 500 degree celsius If I configured in DCS Lower range and Upper range . In face plate it shows red colour due to overa range how was the characteristics look If the temperature is more than operating range. how was the characteristics look . whether its in Resistance vs Temperature curve is Linear or Non linear
How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)
What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?
what different types of problems do occur while doing instrumentation commisioning and how to solve them? please explain in detail
SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.
Draw block digram for well head from well to shipping pump?
1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.