phillip arteaga ppt
TRANSCRIPT
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I & E ENG Department Summer Intern 2016
August 5, 2016
I & E internPhillip Arteaga
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Agenda
About Me Purdue University EE
Overview of selected activities Reconciliation of DCS & SIS cabinet IO Thermowell study Wrap Up
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Programmed Motor Protection Relays in BU-521 (Propak) This Relay monitors the performance of the motor control starter,
determines if it goes outside acceptable parameters, and trips it Wrote a procedure for the relays, which is now in the validation process Worked with Rockwell and Eaton
Work with my supervisor on the instrument air compressor to troubleshoot the problems using special equipment such as the Fluke 1736 Power Logger , and read and learn about this device
Assisted in use of the Fluke 1736 as it was used to measure voltage and current of the 3 phases at the same time when energized and tracks it The electrical contactor needed to be replaced
Overview
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Cataloged the DCS and SIS cabinets: these are the control systems that run the plant and keep it safe
Loop sheet is a drafted drawing of the IO module, which show how the plant was originally designed and modified over time
DOC 4000 is a recently added software utility that surveys the control systems to tell what channels are used
A third resource is the actual field termination strip in the IO cabinet
DCS (Distributed Control Systems) & SIS (Safety Instrument Systems) reconciliation
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Loop Sheet (ENG) Doc 4000 (Controls)
Field (I &E)
Spare
Spare
Example 1: Loop diagram revision not yet complete
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Example 2: Spare IO not yet documented with a loop diagram template
Loop Sheet (ENG) Doc 4000 (Controls)
Field (I &E)
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Example 3: IO point documented, but pending installation
Spare
Loop Sheet (ENG) Doc 4000 (Controls)
Field (I &E)
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Area 100, 239 sparesArea 200, 168 sparesArea 300, 202 sparesArea 500, 115 sparesArea 900, 100 sparesOver 400+ IO modules in the plant checked as well as terminal strips Hire a contractor to update and redline loopsheets due to high percentage of inconsistencies found when comparing loopsheets with the field and DOC4000
Findings & Recommendations
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A thermowell is made for holding a temperature element within the pipe; it is exposed to the process flow and has to withstand process conditions
Calculate whether a thermowell needs to be replaced, or passes per the most recent standards
Many Dimensional and Process data are input to thermowell design calculation
Thermowell Study
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New ASME PTC 19.3 standard (2010) requires more conservative design
Why are we doing this study? To confirm the thermowells meet new standard
Process data for some wells needs to be collected to perform further calculations, but so far those completed look good
Findings & Recommendations
outside the pipe inside the pipetypical break point
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What I enjoyed “if your not learning something new everyday your
doing something wrong” John Brubaker What I didn’t enjoy
The 3 hours round trip drive which has been some days up to 5 hrs
Suggestions Improve set up with designated engineer and
technician as a mentors Fall
Back to school at Purdue
Wrap Up
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Thank you For giving me this opportunity to work here.
Thank you & Questions