Answer / jayamohanan

YOU HAVE TO CHECK THE OVER VOLTAGE SETTING OF THE VFD,THAT SHOULD BE ABOUT 420 TO 430 FOR THREE PHASE MOTORS AND 240-250 FOR SINGLE PHASE.

Answer / u.prabhagaran

motor or high capacity.

Answer / mithilesh k umar

it's reason related to load on motor.it takes more current
dabove the range.
ie bearing problem.

Answer / guest

over load

why the positioner output is 3-15psi

5 Answers  

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TECHNICAL/ARTITUDE

0 Answers   ONGC,

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why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

0 Answers  

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what is unit and element of viberation?

1 Answers   Kentz, KOC,

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A pressure transmitter with a range of 0-100 bar.The accuracy of the instrument is 1% of upper range value? The pressure indicating transmitter is showing the system pressure is 50 bar. b. When you include the error, what is the minimum possible pressure in our fuel gas system? i. 49.5 bar ii. 49 bar iii. 1 bar iv. 0.5 bar We want to change the filter cartridge. We must depressure the fuel gas system. c. After we depressure the system in preparation for maintenance, the transmitter displays a pressure of +0.1 bar. At this time, what is the possible range of pressures in our fuel system? i. +0.099 to +0.101 bar ii. 0 to +0.2 bar iii. -0.1 to +0.3 bar iv. -0.9 to +1.1 bar

3 Answers  

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what is the reset offset and control system in instrumentation

0 Answers   ABB,

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what is isolation Transformer???...

3 Answers   Emerson,

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what's the minimum level required of SIL (safety integrity level)to use fire and gas system?

2 Answers   L&T,

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What is the maximum operative of Drive ?

2 Answers   Reddy Labs,

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what is cascade controller ?

6 Answers  

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WHAT IS MEANT BY PROJECT MANAGEMENT STRATEGIES IN INSTRUMENTATION?

0 Answers  

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what is RTV function in in process control?

0 Answers   Colgate,

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