Theekshana Nikaweratiya

𝐊𝐞𝐲 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥 𝐈𝐧𝐯𝐨𝐥𝐯𝐞𝐦𝐞𝐧𝐭 𝐀𝐫𝐞𝐚𝐬 𝐚𝐬 𝐚𝐧 𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫: 𝐂𝐨𝐧𝐝𝐮𝐜𝐭𝐢𝐧𝐠 𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 𝐈𝐧𝐬𝐩𝐞𝐜𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐓𝐞𝐬𝐭𝐬 𝐚𝐬 𝐩𝐞𝐫 𝐈𝐄𝐓 𝐖𝐢𝐫𝐢𝐧𝐠 𝐑𝐞𝐠𝐮𝐥𝐚𝐭𝐢𝐨𝐧𝐬 𝐁𝐒 𝟕𝟔𝟕𝟏:𝟐𝟎𝟏𝟖+𝐀𝟐:𝟐𝟎𝟐𝟐 𝐟𝐨𝐫 𝐢𝐬𝐬𝐮𝐚𝐧𝐜𝐞 𝐨𝐟 𝐂𝐡𝐚𝐫𝐭𝐞𝐫𝐞𝐝 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞 𝐟𝐨𝐫 𝐋𝐨𝐰 𝐕𝐨𝐥𝐭𝐚𝐠𝐞 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧𝐬, 𝐞𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 𝐬𝐚𝐟𝐞𝐭𝐲 𝐀𝐮𝐝𝐢𝐭𝐬 𝐞𝐭𝐜. • Insulation Resistance, Residual Current Device (RCD), Earth Fault Loop Impedance Measurement, Earth Fault Loop Impedance Measurement, Earth Electrode Resistance, Protection Relay Performance, Socket Outlet Polarity, Prospective Short Circuit (PSC), Circuit Breaker-Cable Coordination 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐂𝐨𝐦𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐢𝐧𝐠 𝐨𝐟 𝐌𝐕 𝐏𝐚𝐧𝐞𝐥 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐢𝐧𝐜𝐥𝐮𝐝𝐢𝐧𝐠 𝐭𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐞𝐫𝐬 • Protection Relay Test, Insulation Resistance of current transformers (CTs) & Potential Transformers (PTs), Earthing & bonding verification of the system, Ratio & Polarity test for transformers, Magnetizing curve of CTs, Contact Resistance Test, Dielectric Withstand Test for Cables, transformers & generators, DC Winding Resistance, Transformer Servicing, Rectification and oil Break down Voltage (BDV) test 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐂𝐨𝐦𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐢𝐧𝐠 𝐨𝐟 𝐑𝐨𝐨𝐟-𝐭𝐨𝐩 𝐒𝐨𝐥𝐚𝐫 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 • Insulation Resistance test for DC & AC installation, Polarity verification, earth fault and overcurrent protection setting calculation

Research Fellow – Ceylon Electricity Board (CEB) (1 Year Experience | Kelanitissa & Sapugaskanda Power Plants) Conducted research on modeling and parameter estimation of Automatic Voltage Regulator (AVR) and governor systems at Sapugaskanda Power Plant, leading Sri Lanka’s first AVR and governor parameter estimation project. This research aimed to develop a cost-effective, in-house parameter estimation method to reduce CEB’s reliance on foreign expertise. Engaged with Kelanitissa Power Plant to support research by validating measurement techniques, testing equipment accuracy, and ensuring reliable data collection methods for power system analysis. Key Contributions: • On-site testing at the Sapugaskanda 20 MW generator, conducting multiple field experiments to analyze AVR and governor system behavior. • Performed a pulse injection test to observe AVR output variations and assess system response under controlled disturbances. • Conducted a current injection (open-circuit saturation) test to evaluate excitation characteristics and machine stability. • Executed load rejection tests to analyze governor response and estimate critical system parameters. • Utilized Kelanitissa Power Plant’s resources to verify measurement equipment accuracy, ensuring precise data collection for model validation. • Developed and tested a MATLAB-based model for AVR and governor systems, comparing simulation results with real plant data. • Designed a switching circuit for the AVR sensing line and verified switching times and peak voltage levels using Hioki equipment. • Assisted in exciter repairs and protection compliance verification, contributing to system reliability improvements. • Collaborated closely with CEB engineers and power plant supervisors, gaining expertise in power system control, real-time data analysis, and field testing methodologies. This research enhanced my knowledge in power plant operations, control system modeling, and field testing, preparing me for field

So excited to join as a Trainee Electrical engineer at Ceylon Electricity Board. I will be getting industrial exposure in Power Generation, Transmission, Distribution, and System control. 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧 ▪️Norochcholai Coal (Thermal) Power Plant ▪️Upper Kotmale Hydro Power Plant 𝐓𝐫𝐚𝐧𝐬𝐦𝐢𝐬𝐬𝐢𝐨𝐧 ▪️Transmission O&M (North - Kiribathkumbura) ▪️Transmission O&M (North West - kegalle/Mallwapitiya) ▪️Transmission Protection & Development (Kent road) ▪️Transmission Substation Automation System (Kent road) ▪️Transmission Protection System unit (Kent road) 𝐃𝐢𝐬𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧 ▪️Planning & Development (DD 4 - Dehiwala) ▪️Construction Sub unit (western south 1 - Rathmalana) ▪️Planning & Development/Operation (Colombo city - UG) ▪️Maintainance Branch (Colombo city - Maligawatte) ▪️Energy management (Colombo city - Kollupitiya/pettah) 𝐍𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐒𝐲𝐬𝐭𝐞𝐦 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 𝐂𝐞𝐧𝐭𝐞𝐫 (𝐁𝐚𝐭𝐭𝐚𝐫𝐚𝐦𝐮𝐥𝐥𝐚)

During my internship at Sri Lanka’s largest base-load coal power plant, I had the incredible opportunity to gain deep insights into the core of national power generation and distribution. My exposure spanned across both electrical and mechanical engineering disciplines, offering me a well-rounded experience in real-world power systems. 🔹 Electrical Engineering Exposure: Studied real-time power generation and transmission systems, understanding the transformation of thermal energy to electrical energy. Worked inside the main control room, where I observed frequency regulation, load management, and power grid balancing using advanced Distributed Control Systems (DCS). Gained hands-on knowledge about Automatic Generation Control (AGC) and how engineers react promptly to critical system fluctuations to maintain grid frequency stability (50Hz). 🔹 Mechanical Engineering Exposure: Explored the operation of high-pressure steam turbines, boiler systems, and their role in the Rankine cycle. Participated in routine maintenance inspections, observing predictive diagnostics like vibration monitoring and thermal imaging to ensure equipment reliability. 🔹 Collaborative Learning & Field Work: Engaged in emergency response simulations with senior engineers, learning how to act decisively during power anomalies and grid instability. Understood the crucial integration between mechanical systems and electrical operations for continuous and stable power delivery to the national grid.

During my enriching internship at Amithi Power Consultants (Pvt) Ltd, I seamlessly integrated with both the testing and designing departments. Engaging in numerous projects, I gained hands-on experience in LV/MV testing, contributing to my expertise. Grateful for the valuable insights gained, I wish forward to leveraging this experience in future endeavors within the dynamic field of power consultancy. 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 𝐚𝐧𝐝 𝐂𝐨𝐦𝐦𝐢𝐬𝐬𝐢𝐨𝐧𝐢𝐧𝐠 𝐨𝐟 𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧, ▪️Visual inspection on MV installation ▪️Transformer Testings (Vector Group, Turns ratio, DC Winding Resistance Test, BDV Test, DGA Analysis, Furan Anlysis) ▪️Insulation Resistance Test (33kV panel - Busbar,CTs & PTs) ▪️Protection Relay Testing (Using Substation test kit- Megger sverker 900) ▪️CRM Test (For ACB & VCB) ▪️Hipot Test (Switchgear panel and 33kV panel) ▪️RCCB and Socket Outlet Testing ▪️Earth electrode resistance Testing ▪️Soil resistivity Testing ▪️PSC and Loop Testing ▪️Primary injection Testing for breakers ▪️Auto Recloser Testing ▪️PAT Testing ▪️Thermography Survey (Using FLIR Thermal camera) (Expertise analyzed Thermal photos (FLIR software) 𝐃𝐞𝐬𝐢𝐠𝐧𝐢𝐧𝐠𝐬 𝐟𝐨𝐫 𝐄𝐥𝐞𝐜𝐭𝐫𝐢𝐜𝐚𝐥 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 ▪️Protection cordination designing (For Overcurrent & Earth faults) (Using ETap software) ▪️Solar PV designing (Using PVsyst & Autocad software) ▪️Lightning designing (Using Autocad) ▪️Lighting designing (Using DiaLux software) Conducted meticulous testing adhering to industry standards, showcasing adeptness with specialized equipment. Acquired valuable expertise in discerning thinking patterns through on-site visits and learning from insightful sessions led by seasoned engineers.

Graduated with 𝐅𝐢𝐫𝐬𝐭 𝐂𝐥𝐚𝐬𝐬 𝐇𝐨𝐧𝐨𝐮𝐫𝐬, earning top recognition for: • Leading the 𝐁𝐞𝐬𝐭 𝐅𝐢𝐧𝐚𝐥 𝐘𝐞𝐚𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐨𝐟 𝐭𝐡𝐞 𝐝𝐞𝐩𝐚𝐫𝐭𝐦𝐞𝐧𝐭 and winning the 𝐁𝐞𝐬𝐭 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐀𝐰𝐚𝐫𝐝 𝐚𝐭 𝐭𝐡𝐞 𝐈𝐆𝐍𝐈𝐓𝐄 𝐄𝐱𝐡𝐢𝐛𝐢𝐭𝐢𝐨𝐧 • Designing the 𝐁𝐞𝐬𝐭 𝐈𝐧𝐝𝐢𝐯𝐢𝐝𝐮𝐚𝐥 𝐃𝐞𝐬𝐢𝐠𝐧 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 (Regenerating Braking System) of the department • Scoring highest marks in Power Systems, High Voltage, and all modules & In classes (A+) by Prof. Lucas • Achieving top marks in EMD (Electrical Machines & Drives) & Power Electronics modules (A+) under Prof. Karunadasa