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
how can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?
How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks
What are the interlocks we have to check during the start up of LP/HP compressor?
How is flow measured in square root?
Specify eight technical requirements that you would consider important, when deciding upon a particular control valve?
how many types of preheaters are in cement industry & what r they can any body explain?
Reason for capillary type dp level transmitter fluctuation
how to commission furnace ( water heater)
How it the difference between force balance system and dispalacement balance system?
How would you choose differential range?
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
What you mean by multi stage control vavles?
Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;
who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.
Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?