Sergio Rebollar

Worked alongside Pemex I/E specialist to troubleshoot multiple Guided Wave Level transmitters on different units to get accurate and matching readings as those showing on their associated LI's and sight glasses. Coordinated with Pemex operations for the opening/ closing of lines to perform "float" test on some LT's to ensure all associated equipment matched on all levels and are functioning as they should be. Worked alongside other contractor I/E specialist and performed audits on both equipment on and off the turnaround as requested per Pemex. Performed SIS equipment audits and function test to do final SIS checkout with Pemex I/E and contractor inspector. Some of these equipment include heaters, compressors, exchangers, and of course any equipment associated with it. Performed various field function test, troubleshooting and calibrations for valves, gas detectors, transmitters, and fireye flame scanners including having to perform these activities using supplied air when performing work on systems identified as an IDLH. Helped out supervision and safety to get accurate head counts for ISC personnel during an acid gas release at the facility, and ensured the group under me had communication other ISC personnel at the site and ensured everyone was present or accounted for.

Receive various field instruments and valves to I/E maintenance shop for us I/E Technicians to perform table calibrations and stroke tests before going out to the field for installation. Performed troubleshooting, calibrations, function tests on various PV's,HV's, TV's, FV's and all of these of various makes and models. Performed troubleshooting, field calibrations, and function test on various field instruments for both new install and previously existing instruments. Filled out field inspection/ function test sheets for both regular process and SIS equipment. Worked along side Lyondell I/E to troubleshoot any field side and DCS discrepancies. Worked with other contractors on witnessing the correct installation of capillary/diaphragm transmitters and verified correct materials, torque, position, etc. was maintained as per spec. sheet or Lyondell I/E instruction.

Troubleshooting of various field instruments like PT's, LT's' TE's, FT's, VT's, Gas/ smoke detection systems, among others of various manufacturers. Other systems I have worked on to troubleshoot and perform preventive maintenance are UPS systems, PCV's, MOV's, FV's, VFD's, pump motors, as well as others of various manufacturers. Perform weekly P.M. visual inspections on various PDC's and UPS systems. I have performed quarterly, bi-annual, and annual checkouts/ function tests of various systems including ESD devices for underground wells and Oneok pipeline. Re-calibrate various field instruments and switches for proper set/ trip points. Work along third party contractors to replace parts and update multiple PCV's and MOV's for Oneok pipeline and storage operations. Perform rack in and rack out of various breakers for Oneok non I/E personnel and verifying proper lockout tagout procedures are maintained until job completion. Working with Oneok DCS team to troubleshoot PLC and programming issues at various Oneok locations including pipeline and storage operations. Perform infrared scans of various PLC and PDC electrical systems for preventive/ predictive maintenance. Hooking up of various temporary power in multiple job locations as an emergency response for any power losses from Hurricane Beryl to critical operation systems by both generator power or running new power wire from an existing power source like other PDC's. Come in for call outs with other Oneok personnel and troubleshoot any I/E related issues. Aided in the weekly work order, close out documents and any break-in or non planned work performed for the work week and submit it to the maintenance planners once all documents are filled out accordingly. Worked alongside Oneok and other contractors on various tasks throughout the Mont Belvieu Oneok facility ensuring a safe work environment was maintained without sacrificing quality, efficiency, and productivity.

Perform pre-loop inspection/ function checks on various field instrument and systems such as Rosemount PT's, LT's, TT's, FT's, Fisher LV's, CV's, FV's, Honeywell LT's, PT's, Fireye flame scanners, etc.. All systems were inspected for proper tagging and matching to spec sheet information. Once instruments were function checked by five point check to ensure both field side and DCS side were showing same result, a final acceptance loop check was performed with Pemex I/E inspectors as witness before all sign-off sheets were filled out and given back to Pemex for acceptance. Some trouble shooting was performed for field instruments and valves when there was loss of power, improper fail state, incorrect upper/lower range values, polarity issues, loss of pneumatic air pressure, DCS programming/ addressing issues, etc. just to name a few. Performed SIS inspections and interlock checks with Pemex I/E and R.T.F. third party contractors to ensure all cause and effect steps ended with desired results. Floated several GWR LT's to ensure proper level in field matches what the DCS has with some of the LT's having to change the calibrated range to ensure LT has a true zero when fully vented to atmosphere and keeping the desired span specified in the spec sheet. Ensuring all work was performed in a professional and safe manner without cutting corners, and still keeping the quality of work to a high standard.

Walkdown of various I/E folders pre-turnaround to locate all instruments and other systems to be worked on or replaced completely. Work along side Ascend I/E and Operations personel for system lockout and isolations prior to begining work on any systems or instruments. Disconnecting of various motors , fuses inside MCC's, PT's, Temperature switches, Flow switches, Level switches, Micro Motion sensors/ FT's, as well as other type of field instruments and systems. Some of these field instruments were replaced completely for new ones and others we brought back to the shop for prevantive maintenance and testing wether it be pressure, temperature, or simulation testing as well as other forms of testing in the Ascend I/E shop. Once all testing is complete with all mechanical and electrical components returned to its intended state out in the field, we conducted field validation tests along side with Ascend pesonel using all tested verified equipment to ensure accurate and consistent results for any field instruments and systems which were worked on for the project TA. We maintained good communication with all Ascend personel as well as all ISC supervision to ensure the daily workday was maintained with the expected safety, quality, professionalism, and that the day to day goals were all  met effciently without shortcuts.

Walkdown of various I/E systems for troubleshooting, pre-looping, and selling of systems to the third party buyers with Rev1 Energy. Once the I/E system was sold to the third party buyer we logged in all perdinent data to the S&B companies Instrument Calibration forms and input any other necessary information associated with the system into its individual folder and gave it to our Lead Technician where he then ran it up the chain of command for the next step in the process for the client to accept and buy previously tested and witnessed systems. The systems vary from Rosemount TT's, LT's, FT's, PT's and other Rosemount devices/ instruments. I worked on various brands of valves such as Fisher, Flowserve, and Jamesbury to name a few. I worked on troubleshooting and selling various types of instruments of the Schneider Electric brand that were on eight of the projects Electrolyzer's skids. I worked on the VFD's of three of the facilities compressors Hyundai Electric motors where I had to troubleshoot some wiring and addressing issues along side ABB Group personel. Other brand name of systems and instruments I pre-looped and sold to the third party buyers include Endress+Hauser, Vega, Flo-Tite, Air-Con, Drager, Rotork, Alicat, and Pepperl+Fuchs.

Assign daily tasks to crew of Leadmen,Journeymen, and apprentices varying throughout the project from 8 to 20 personnel and ensure proper information, coaching, and direction is given not only at the beginning of the workshift, but throught the workday. Keep inventory of all electrical materials that will be required for the jobscope of the entire work week and work along side Electrical Supply Journeyman to ensure all necessary material is fully stocked in work area gameboxes. Give daily and weekly reports to General Foremen of the work conducted to ensure work progress is maintained at a 1.0 schedule every day and to maintain all information for the projects tracker to be kept up to date and reflects what production is being performed in the field with a 100% accuracy. Took charge of crew performing preventive maintenance on various electrical equipment such as pump motors, transformers, heaters, etc. Ensuring all equipment to have p.m. performed on according to specific multi-step procedure ex: ( Resistance and Amperage testing) is logged, verified with peers, and visually inspected prior to sending p.m. work log to field Quality Control personel. Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches, pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc. Performing work on both new construction site and live side of projects working with Lone Star NGL personnel to get all systems ready for shutdown including identifying all systems to be worked on for shutdown, and proper locking out of any low and medium voltage systems to be worked on for shutdown.

Provide guidance, coaching, information, and direction to journeymen and helpers in my crew that reguards to the project's safety procedures, construction, quality, systems installation, etc. Walked down job scope for the day with Llyondell operations and Austin Ind. General Foreman for verification of proper lockout/ tagout of specific systems and for ensuring the execution of the tasks expected to be performed are explained with clarity and direction. Pulled permits from Llyondel Operations for various job task for the day such as equipment installation/ construction, troubleshooting of systems, correction of punch list items, etc.

Walked down different systems with Llyondell personel to troubleshoot, demo, reinstallation, wire termination, and function testing of various field transmitters, solenoid valves, TE's, positioners, various switches, etc. to perform finally pre-loop checks and selling along side Llyondel operations and I/E personel. I Glycol filled legs for LT's and set ranges to correct zero and span as directed by Llyondell I/E personel. Installed thermowells along with TE probes, conduit, flex conduit, unistrut supports, etc. Performed calibrations and function checks on various pressure, level, temperature, and flow transmitters. MFunctions checking vibration and pressure switches along with proper termination of components according to drawing specifications. Verification of motor rotations for pump motors and fan deck motors along with proper terminations of components according to drawing specifications. Most of the instruments and systems I worked on this project's shutdown were Rosemount, Vega, Flowserve, and Fisher Controls to name a few.

Performed calibrations and function checks on various pressure, level, temperature, and flow transmitters for GE turbines. Performed function calibrations and function checks on various Mercoid, pressure, and vacuum switches for GE turbines. Inspection of proper installation of field instruments and switches along with all associated electrical and mechanical components for both functionality and condition. Performed troubleshooting, pre-loop checks, and finally selling of systems to International Paper operations and I/E personnel.

Performed loop checks and calibrations on pressure, level, temperature, and flow instruments including Rosemont and Fisher. Function checking of vibration and pressure switches along with proper termination of components according to drawing specifications. Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches, pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc. Performing work on both new construction site and live side of projects working with Ineos personnel to get all systems ready for shutdown including identifying all systems to be worked on for shutdown, and proper locking out of any low and medium voltage systems to be worked on for shutdown.

Performed calibrations and function checks on various pressure, level, temperature, and flow transmitters. Functions checking vibration and pressure switches along with proper termination of components according to drawing specifications. Verification of motor rotations for pump motors and fan deck motors along with proper terminations of components according to drawing specifications. . Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches, pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc. Installation and wire terminations of thermocouples and thermowells. Ensure newly installed systems work according to drawing specifications before turning folders to Cheniere I/E QC.

Function checking of vibration and pressure switches along with proper termination of components according to drawing specifications. Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches, pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc. Identifying systems for demo and new systems installation. Along with Centric QC commissioned of Siemens switchgear verifying all motors are properly terminated and set to proper rotation.

Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches,pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc. Performed loop checks and calibrations on pressure, level, temperature, and flow instruments including Rosemont and Fisher. Function checking of vibration and pressure switches along with proper termination of components according to drawing specifications. Along with RUS, I/E inspector performed field inspections on all electrical and mechanical components for field instruments, valves, switches, motors, etc. Verifying correct setup for all DCS and SIS valves and field instruments. Assisted on all compressor decks to ensure proper functions specifications for alarms on VT's, VE's, KT's, ZT's, and TE's. Assisted RUS and Enterprise on final PSSR walk down and cause & effect for start up.

Fabricated and installed pvc, emt, flex, rigid, and stainless steel conduit for various electrical systems. Fabricated and installed cable tray, snap track tray, and fiber glass tray to various electrical systems. Fabricated and installed various forms of stands and supports for electrical systems and equipment. Performed loop checks and calibrations on pressure, level, temperature, and flow instruments including Rosemont and Fisher. Function checking of vibration and pressure switches along with proper termination of components according to drawing specifications. Troubleshooting, fabrication, installation, and wire terminations of various field instruments, vibration switches, pressure switches, P.A. systems, temporary/ permanent power panels, temporary/ permanent lighting panels, field transformers, VFD's, MOV's, motors, HOA switches, On/Off switches, gas alarm systems, solenoid valves, etc.

Assisted Lead I/E Technician in pre-commissioning loop testing, servicing, and calibration of various Rosemont field instruments. Verification of calibrations on multiple field instruments and pressure switches according to the drawing specification. Performed cause & effect trips and shutdown tests in various instruments and other systems associated with furnaces. Installation of tubing, air pipe, instrument heat trace tubing, and instrument poly tubing to field instruments/field valves.

Assisted Lead Technician in loop testing, servicing, and calibration of various Rosemont flow, level, temperature, and pressure transmitters. Assisted Lead Technician in loop testing and servicing of Fisher valves and multiple pressure switches. Function testing of vibration switches for cooling tower fans. Verification of motor rotations for pump motors. Installation and terminations of HOA and On/Off switches for various motors. Installation and terminations of lighting, receptacles, instruments, and field switches.

I was selected for an apprenticeship/ scholarship position during my senior year of high school after applying I was selected by selected members of the GCCISD board along with personnel from both Bayer and Austin Industrial to be one of the three graduating students from the school district to participate in the apprenticeship program. Assisted the Lead Technician in loop testing, servicing, and calibrating various field instruments and pressure switches. Aided the Lead Technician in commissioning of Siemens switchgear, verification of proper motor rotations, and set up of multi-lens trip settings. Assisted I/E Technicians in installing and terminating fiber optic cable for various alarm systems going from the field to various fiber optic junction boxes. Fabrication and Installation of electrical conduit and cable tray for power, lighting, instruments, etc.