ابدأ بالتواصل مع الأشخاص وتبادل معارفك المهنية

أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.

متابعة

Why putting 2 out of 3 voting instrumented switches as a protection ( for example high pressure at gas plant inlet manifold)?

user-image
تم إضافة السؤال من قبل Abdelhalim Mohamed , process engineer , khalda petroleum company (kpc)
تاريخ النشر: 2015/08/21
ammar karoun
من قبل ammar karoun , SUPERVISEUR DE QUQRT , sonatrach/ENI

FOR A TRIP BY PSD TO ADVANCE ON PRESSURE WHAT CAUSES US DAMAGE

paulus  luhan
من قبل paulus luhan , Senior Operator , Dietsmann - Kuwait Branch (O&M KIPIC OIL REFINERY)

to ensure the integrity of the instrumentation reading and avoid malfunction on the system.

مستخدم محذوف‎
من قبل مستخدم محذوف‎

2 oo 3 instrumentation switches are installed :

-To increase reliability due to confirmed alarm from 2 different switches

-To avoid production lost due to nuisance trip as it would be the case 1 oo 1. 

Ibadurrahman Adi
من قبل Ibadurrahman Adi , Operator , Abu Dhabi Gas Industries (GASCO)

to ensure spurious trip in the equipment due to spike indication can be avoided.

in case one instrumentation malfunction it will not give impact to the equipment protected unless two of three instrumentations have the same problem.

in this case, main inlet shut off valve will not responding to close while only one intrumentation error.

Sajad Rather
من قبل Sajad Rather , Business Development Manager – UAE & KSA , Trans-Asia Pipeline Services

For its manimal safety for high pressure 

nn g
من قبل nn g

improve integrity and avoid nuisance malfunction resulting in process upset , trips etc. SIS Voting logic should be developed based on the intended function of the safety instrumented systems e.g. if the equipment is safety critical etc.

diab bouarbi
من قبل diab bouarbi , Engineering Manger , ENI-SONATRACH

In let pressure for High pressure in oil and gas slug catcher minimal safety SIL  3 ( PITHHA and PITHHB and PITHHC )  redondant safety in case to discharge to High flare heater .

Muhammad Riduan  Adhael
من قبل Muhammad Riduan Adhael , Process Engineer , Pertamina Hulu Mahakam

Can you imagine in case the imoact in case the instrumentation has malfuction and trip and stop the production unnecessary?

Tariq Raza
من قبل Tariq Raza , HSE Head , Engro

To increase reliability and also avoid nuisance trip as would be the case with1 out of1 

المزيد من الأسئلة المماثلة