Answer / vaibhav v t

Auto regulation of steam pressure/flow with respect to
speed of the turbine.

Answer / narendra mishra

it controls the MW generation according to the steam
flow,pressure.

Answer / prashant g kurhade

Governor is used to control the rpm of the steam turbine by throttling the inlet steam.
Woodword governors are most widely used in industry
it senses the rpm n drive a hydraulic pump which is inbuilt in governor and develope the oil pressure such that the generated oil pressure will control the steam valve
now days electronic governors are there which gives mA output and through I to H or I to P you can convert it to pressure and control the steam inlet valves.
please read woodwords manual for more details thank you.

what is the calibration standard for pressure and differential pressure transmitters?

1 Answers   Thermax,

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generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 Answers  

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Transmitter reading is zero but in DCS showing one Bar what is the reason ?

3 Answers  

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In apron feeder how TPH is calculated?

0 Answers   Lafarge,

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POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?

0 Answers  

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please send me hpcl placement papers

13 Answers   HPCL, L&T,

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what is the reset offset and control system in instrumentation

0 Answers   ABB,

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Someone please do mail me some instrumentation questions for Hindustan Petroleum test to avinalexander@gmail.com .Really would be gateful if someone could help me

3 Answers   HPCL, Immersion, IOCL,

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what is the field bus calble ? what are diffrences in orang colur cable and black coular calble ?

0 Answers   ABB, Yokogawa,

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Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

0 Answers   Ace Info,

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What is the Main principle and formula for the steam flow compensation?

2 Answers  

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IF TX SHOWS SLOW RESPONSE, WHILE A CLOSE LOOP AND WHEN WE PUT THE CONTROLLER ON MANUAL THE PROBLEM RECTIFIED, SO WE CAN SAY THE PROBLEM IS IN

1 Answers   IFFCO,

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