types of transformer.. 1ph 3ph or core shell?

1 Answers  

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why we take 4 to 20 mA as out put of every instrument like pressure transmittre ?why we cant take 0 to 20mA as output?

6 Answers   OGDCL,

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plz send me general of ongc

0 Answers   ONGC,

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What is the main difference between Cavitation and Flashing?

1 Answers  

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What is instrumentation measurement?

0 Answers  

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Witch type cable use for rtd ,why?

2 Answers   Sugar Factory,

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Speedtronic system .

0 Answers   CCIE,

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Troubleshoot to the device level basic process control systems given the Process and Instrumentation Diagram?

2 Answers   Chettinad, HPCL,

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we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?

0 Answers   Yokogawa,

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We have a Yokogawa Micro-XL DCS, which is having around 300 I/O, but whenever there is any wire gets grounded in field, the 24v supply to all loops gets dipped & all the indications at DCS goes to IOP(shows input open), at present we have fixed 500mA fuses in all the lines but which does not working. Does it required to replace with lower amps fuse, then how much or is there any other solution for this.

2 Answers  

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What are the questions asked in fresher instrumentation candidates

0 Answers   Polmon,

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Technician A says that a fuel tank sending unit will have a high resistance only when the tank is full. Technician B says that its resistance when the tank is full depends on whether the sending unit is designed for use with a bimetallic gauge or with a magnetic gauge. Who is correct?

3 Answers  

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