ETAP
Yadhuraj Mambully Sobharajan
Electrical Engineer
arimbur-thrissur,KL
Summary
Dedicated Electrical Engineer with 15 years of extensive experience in maintenance engineering, testing, and commissioning of diverse electrical equipment. Proven expertise in operations, maintenance, and asset management within the oil and gas sector, as well as critical facility management in the United Arab Emirates and the United Kingdom. Seeking to leverage a comprehensive background in a management role at a reputable organization that fosters professional growth while contributing to overall success. Highly skilled in optimizing performance through effective asset management and client reporting within petrochemical plants and critical facilities.
Overview
15
15
years of professional experience
5
5
Certifications
4
4
Languages
Work History
Critical Facility -Electrical Engineer
Mitie
London, united kingdom
04.2025 - 01.2026
- Log work via sites CAFM system, ensuring preventive and reactive tasks done on time.
- Conducted high voltage electrical testing and certification of electrical systems.
- Prepared and maintained accurate records of all maintenance works, including maintenance schedules, procedures, work orders and engineering drawings.
- Identified and resolved problems by gathering and skillfully analyzing information.
- Overseeing installation and commissioning of critical electrical equipments.
- Maintained and managed complex electrical systems in critical facility (power distribution, emergency power- UPS, generators, PDU, chillers, CRAC/CRAH units).
- HV/LV/ELV - Building Management system, Electrical distribution Panels, MCC & ATS Panels maintenance.
- Monitored electrical system performance via BMS(Building Management Systems) to optimize efficiency and safety.
- Controlled and maintained critical facility cooling and heating systems- Chillers, boilers, Crac units & Fire protection and gas suppression systems, Electrical and mechanical systems within the portfolio of buildings.
- Ensuring compliance with BS regulations, health and safety standards and environmental regulations.
- Studying contract documents, design drawings and project specifications prior to the execution of any work; helping to prepare and assign resources, such as manpower, materials, and equipment, for all related works.
- Security Systems & IT – Data Centre, CCTV & ANPR, Access controls and E-gates, Network Switches and PABX System
- Performed maintenance procedures and repairs on existing electrical products and systems.
- Provided technical support to colleagues on complex issues, assisting them in finding efficient solutions to problems.
- Established positive relationships with key stakeholders, including clients, contractors, and regulatory agencies, to facilitate project success.
- Leveraged mastery of AutoCAD Electrical Toolset to develop and document electrical schematics.
- Reduced costs without compromising quality by utilizing cost-effective materials and innovative design techniques.
- Developed comprehensive documentation for designs, including schematics, calculations, specifications, and reports for review by clients or regulatory agencies.
- Retested electrical products and systems to determine effect of modifications.
- Prepared detailed reports on electrical systems and components for project review.
- Assisted in installation of electrical systems and components for commercial and industrial applications.
- Resolved complex electrical faults swiftly, minimizing downtime and production losses for industrial clients.
SHIFT MAINTENANCE ENGINEER
CBRE UK
London, united kingdom
07.2023 - 04.2025
- Log work via E log system/CAFM system.
- Daily base preventive and reactive tasks to ensure plant smooth operations.
- Providing the Facility services for MEP, Civil and Specialized Assets.
- Worked directly with sub-assemblies of electrical equipment supporting control products.
- Resourced planning (manpower, material/replacement spares, subcontracted specialized services, etc.) for the contracts assigned.
- Boiler, chiller and AHU maintenance to ensure quality air condition.
- Assisted in the development of safety protocols for hazardous materials handling.
- Control and analysis of facility hot, cold and drinking water management system using UV system, TMV and boilers and repairs, water management and coshh control to the facility
- Fire and Life safety systems – Fire alarm, Firefighting and Central Batery Systems, provide fire alarm testing, emergency lights testing.
- Preventive maintenance, repairs or replacements, also the Statutory inspections by the Third-party vendors.
- Provided technical support to colleagues on engineering related issues.
- Maintaining and servicing of Elevators, Escalators, Solar water heater system, BMU’s, Cradles, LPG/SNG System, Water features, Sliding/Revolving/Swing doors, Heat Exchangers, Grey Irrigation system and Lifting Equipment’s.
- Enhanced plant efficiency with timely troubleshooting and repair of various machinery and systems.
- Served as an on-call engineer, responding quickly to emergency situations outside normal working hours when necessary.
- Provided training to junior team members, fostering a positive work environment and promoting professional growth.
- Collaborated with other engineers to develop effective solutions for complex technical problems.
- Organized and directed maintenance shutdowns and startups.
- Worked frequently with mechanical and plumbing systems to complete knowledgeable inspections and skilled repairs.
SENIOR ELECTRICAL TECHNICIAN
BOROUGE PETROCHEMICALS, ADNOC
Abudhabi, United Arab Emirates
07.2013 - 01.2023
- Consistent track record of controlling and maintaining of substation(220/33/11/3.3/415)v with all switching activities (GIS-SF6, ACB, VCB) contractors, PT and CT.
- Startup, operation and maintenance of transformers with capacity of (33/11.5 kV 160 MVA, 11/3.45 kV 6.3 MVA (conservator type), 11/0.433 kV - 2.5 MVA (oil immersed), 10MVA, 66kV/11kV 2MVA, 11/0.4 kV (AREVA , Hyundai, ABB).
- Commissioning, start up and pat testing of control panels, emergency lighting and normal lightings.
- Arrangement of operation and Contingency breakdown management system of substation.
- Monitored machine operations with PLC/SCADA operation during production runs to ensure accuracy and quality standards are met.
- Drafted daily maintenance records, maintenance of stocks, tool boxes and technical registers
- Inspection, control & Testing of incomer and transformer feeder protection relays like Sepam (Schneider electric), ABB REF630 & REF542 and line differential protection 87L Siprotec 7SD618&7SJ62(Siemens).
- Performing restricted earth fault stability tests as well as sensitivity tests and differential protection tests for transformers and motors as per the project specifications, utility standards and Inspection Test Plan procedures
- Witnessing the Testing on switchgear protection relays and motor manager IED’s of ABB & Schneider Electric for protections such as over-current, under-voltage, earth fault, restricted earth fault and differential protections.
- Supervising pre-commissioning and commissioning activities, ensuring that all relevant tests are performed in accordance with health, safety, and environmental practices, as well as national and utility standards.
- Commissioning & operating experiences of LV/HV variable frequency drives of Allenbradly, ABB and Loher.
- Comprehensive testing of electrical systems on site such as IR test, CT polarity test, contact resistance test, HV test, primary/secondary injection test, torque tightness test and functional tests of switch-gears and motors.
- Gained exposure in Pressure Transmitters, Temperature Transmitters, Photo electric & Proximity Sensors, RTD, Switch gears & Control Panels.
- Executing highly taxing Schematic tests, stability tests & interlock tests, Protection test for switch gears
- Inspection and implementation of all circuit breakers, transformers, motors, generators, VF D’s & lighting panels for new Borouge 3 project.
- Corrective and preventive maintenance jobs for HV & LV motors, HV & LV transformers, Vfd-inverter control, soft starter, ups, generator, upstream and downstream switch-gears.
- Responsible person to carry out all switching activities-lotto(lockout tag-out) in substations with following permit to work system.
- Emergency Diesel Generator EDG operation, maintenance and fault fixing ,synchronization (automatic and manual) protections (up to 2500 kVA/2000kW).
- Liaising with Vendors to execute testing & uploading for relay protections & parameters of different makes.
- Analyzing & troubleshooting the problems on motor feeders to perform solo runs of LV & HV motors.
- Maintenance and monitoring of transformers, Circuit Breakers, Control panels, CT, PT and battery systems-UPS, generators .
- Identifying areas of electrical interruption/downtime and rectifying them through application of troubleshooting.
- Trained new employees on company-specific procedures, accelerating their integration into the workforce.
- Enhanced safety standards by conducting thorough risk assessments and implementing necessary changes.
GRADUATE ENGINEER TRAINEE
APOLLO TYRES PRIVATE (LTD)
08.2012 - 07.2013
- Assisted electrician with repairing or installing wire and electrical cable systems, conduit systems, and other wire raceway systems.
- Connected electrical wiring to outlets, switches and fixtures.
- Coordinated with other contractors to ensure efficient installation of electrical wiring in new construction projects.
- Proficiency with National Electrical Safety Code and IEEE/ANSI Standard. Well knowledge in ATEX protection and British standard BS7671 along with IEC60446 STD.
- Programming & Commissioning of PLC- SIEMENS, ABB, Omron etc.
- Commissioning & operating experiences of VFD’s of Eurotherm, SIEMENS, and Hitachi etc.
- Arrangement of operation and Contingency breakdown management system of substation
- Maintenance and monitoring of transformers, Circuit Breakers, and Control panels, CT, PT and battery systems etc.
- Assisting the Senior Engineer for the preparation of purchase list for the electrical materials.
- Drafted daily maintenance records, maintenance of stocks, tool boxes and technical registers.
- Routine check for temperature rise of the oil/Winding temperatures on every 2 hour’s duration.
- Working exposure on 10MVA, 66kV/11kV OLTC Transformers, 2MVA, 11/0.4 kV Transformers,1.45MVA, 11kV Diesel Generator Set, 1.1MVA, 415V DG Set.
ELECTRICAL ENGINEER
MAXWEL ELECTRIC CORPORATION
10.2011 - 08.2012
- Compiled data and wrote reports regarding existing and potential electrical engineering studies and projects.
- Prepared specifications for purchases of materials and equipment.
- Inspected completed installations and observed operations to conform to design and equipment specifications and comply with operational, safety and environmental standards.
- Conducted field surveys or studied maps, graphs, diagrams, or other data to identify and correct power system problems.
- Troubleshot electrical issues by checking switches, circuit breakers, and outlets.
- Assisted in the installation of electrical control systems and equipment.
Apprentice
TRANSFORMERS AND ELECTRICALS KERALA LIMITED
01.2008 - 03.2008
- Installation, Testing Commissioning of electrical power panels and distribution boards.
- Making of bills handling over documents.
- Co-ordination between operation maintenance team/client.
- Assisting the Senior Engineer for the preparation of purchase list for the electrical materials.
- Co-ordination of site activities and manpower management.
- Planning & execution of work by subcontractors.
Education
Bachelor of Electrical Engineering - RQF Level 6, SCQF Level 10, CQFW Level 6
Uk Naric
united kingdomBACHELOR OF ENGINEERING - ELECTRICAL & ELECTRONICS
ANNA UNIVERSITY
01-2011
Skills
Electrical safety standards
Power distribution
Fault diagnosis
Circuit diagnostics
Microsoft PowerPoint
Energy management
Team leadership
Wiring schematics
CAD software expert
Project management
Power systems analysis-ETAP
Control systems engineering
High voltage engineering
Battery management systems
Electrical testing
Additional Information
- Consistent track record of Controlling and maintaining of substation(220kv/33kv/11kv/3.3kv/415v)with all switching activities like rack in rack out breakers.
- Proficiency with National Electrical Safety Code and IEEE/ANSI Standard. Well knowledge in ATEX protection IECEx/CENELEC/ NEC 505 NEC 506 and British standard BS7671.
- Power system analysis using ETAP software- Load flow analysis, short circuit studies, Motor acceleration studies, Relay Protection and Co-ordination studies, Harmonic Studies, Transient Stability Studies and Arc Flash Studies.
- Versatile, dedicated professional, capable of managing large portfolios and maintaining assets of huge volumes. Expertise in managing and coordinating the end-to-end commissioning of electrical systems across multiple high-profile infrastructure projects, ensuring timely execution, & strict adherence to client specifications, safety rules.
- Specialist in testing and commissioning of high voltage/LV switch-gears, protection relays and feeder managers etc.
- Excellent in relationship management, site management, design calculations and substation projects handling. Adept in circuit diagrams, site drawings and good in troubleshooting on protection relays, inverters & control panels.
- Prowess in electrical equipment operations and standards, maintenance of solar PV & various electrical assets.
- Level 3 Award in the Requirements for Electrical Installations BS7671:2018-2382–22, the 18th Edition certificate united Kingdom. AP15-HVAP-high voltage authorized person-city & Guilds-UK.
- Technically accomplished engineering professional with experience in IT skills like excel, word, PowerPoint and sap, Auto cad, ETAP.
WEBSITE, PORTFOLIO AND PROFILES
https://www.linkedin.com/in/yadhuraj-mambullysobharajan-02771748
Software
E-CAD
PLC-SCADA
IPCS
BMS
SAP
Certification
Power system analysis using- ETAP software-2026
Timeline
Critical Facility -Electrical Engineer
Mitie
04.2025 - 01.2026
SHIFT MAINTENANCE ENGINEER
CBRE UK
07.2023 - 04.2025
SENIOR ELECTRICAL TECHNICIAN
BOROUGE PETROCHEMICALS, ADNOC
07.2013 - 01.2023
GRADUATE ENGINEER TRAINEE
APOLLO TYRES PRIVATE (LTD)
08.2012 - 07.2013
ELECTRICAL ENGINEER
MAXWEL ELECTRIC CORPORATION
10.2011 - 08.2012
Apprentice
TRANSFORMERS AND ELECTRICALS KERALA LIMITED
01.2008 - 03.2008
BACHELOR OF ENGINEERING - ELECTRICAL & ELECTRONICS
ANNA UNIVERSITY
Bachelor of Electrical Engineering - RQF Level 6, SCQF Level 10, CQFW Level 6
Uk Naric