Answer / praveen kumar

Governor input is RPM....and based on setpoint it give 20-200ma to servo actuator, it increase actuator open or closing based on the setpoint and process variable(rpm) errors...its a simple controller oly...but the output range was changed....

plz exlain the dcs system of ABB sympony hamnony

1 Answers  

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What is T4 temperature in compressor?

1 Answers  

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How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error

2 Answers  

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Explain Gas Turbine startup and shutdown sequences

0 Answers  

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Why three wire is using with a RTD?

3 Answers   ABB, MAHINDRA,

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What is the procedure of DP switch calibration 

2 Answers   NOCL,

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in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

0 Answers  

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Explain plc level and its type?

0 Answers  

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Define the difference between a stable versus an unstable controlled system and some of the tools you might use to be able to detect when this is happening and assumptions used for control system application design that could contribute to instability

0 Answers  

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What is cable size for intrenal wiring in DCS or PLC ,from any card to Terminal amd Why

2 Answers  

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What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 Answers  

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what is ABB DCS SYSTEM?

2 Answers   OMV,

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