Answer / haridass

T4 temperature is the point where the temperature is
measured in the turbine at 4th position.

1. Ambient temperature (Outside enclosure)
2. Gas generator inlet temperature
3. GG air outlet temp (Where P2 measures)
4. HP to LP (PT) turbine temp (After fired)

This is used to measure the temp of hot gas passes out from
the HP turbine, which has left side 4 probes & right side 4
probes.

It trips the compressor (Turbine) when there is 120deg c
difference between left & right avg.

It trips comp when avg temp goes more than 740 deg c (due
to air-fuel ratio).

These informations are partically observed from MAN TURBO
THM 1304 gas turbine.

Where should we terminate the shield and why?

3 Answers   OPaL,

---

Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.

0 Answers  

---

what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...

2 Answers  

---

Why is a dead weight tester so called by that name?

1 Answers   SGS,

---

SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.

0 Answers  

---

what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 Answers  

---

In thermocouple could we use the lug for termination or not,Thermocouple is any time,I am currently concerned with K type.please let me know if anybody know

4 Answers   Saudi Aramco Shell Refinery Company SASREF,

---

why we set -10 volt in vibration sensor output,why not +10 volt

3 Answers   GE, Honeywell, LLM,

---

With N nodes and B branches what will have a network ???

0 Answers   BSNL,

---

i m passed my engineering in 2010 in instrumentation and control engineering. my question is can i apply for software jobs or vacancies.??????????? plz give me answer soonnn......

2 Answers  

---

why t/c is connected parallel and what is the purpose of it

2 Answers  

---

How will you calibrate an interface level trol/normal level trol in line and in w/s?

1 Answers   CCIE,

---