Answer Posted / shyam

in VFD, fist ac power rectify into dc power then convert it
into variable ac power.in this process energy loss as heat.
in DOL none of the parameter like Voltage or Frequency are
changed thus Power remain same.

We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.

2328

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What is the constant voltage unit?

1067

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How r the calculation of process line mpm.

4795

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typical loop drawing of a simple feedback control comprising of one transmitter and one control

1986

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what is the difference between -24 : +24 & 0:24 and where it use?

2059

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What is the differerence between hysterisis and linearity.

2313

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How process line mpm calculation is done?

1402

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Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

1928

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I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?

2049

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What is the difference between uv and ir scanners? and what is the workig principle of both

2360

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Boolean algebra

2170

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hi! i want to know about mpse exam.

2282

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Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection

2008

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Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264

1944

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few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters

2026

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