Substation Electrical Testing and Commissioning
ADVEC provides comprehensive testing and commissioning services for high voltage substations to ensure safe, reliable, and efficient operation. Our services verify equipment performance, protection schemes, and system integration in compliance with international standards.
Our Expertise
Equipment Testing
We perform testing for GIS, power transformers, MVSG, and auxiliary systems to verify correct installation and functional performance.
Commissioning and Control Scheme Verification
We supervise energization, functional testing, and handover procedures to confirm that the substation operates safely, efficiently, and according to design specifications.
Advanced Protection System Testing
We check protection relay settings, interlocks, and control schemes to ensure proper coordination, selectivity, and safety.
Electrical Infrastructure Testing
ADVEC provides comprehensive testing services for electrical infrastructure to ensure safety, reliability, and efficient operation of medium and low-voltage systems. All testing is performed in compliance with international standards.
Our Expertise
Ring Main Unit (RMU) Testing
Functional and dielectric tests are carried out to verify switching operations and insulation integrity. Interlocks and protection coordination are checked for safe operation.
Medium Voltage Switchgear (MVSG) Testing
Primary and secondary injection tests are performed on protection relays and breakers. Busbar continuity and auxiliary systems functionality are verified.
Medium Voltage (MV) Cable Testing
Insulation resistance, continuity, and high-potential (Hi-Pot) tests/ VLF tests are conducted. Faults or installation defects are identified to ensure reliability.
MV/LV Transformer Testing
Ratio, insulation, and winding resistance tests are performed. Tap changer operation, polarity, and temperature rise are verified.
Lightning Protection System Testing
Lightning rods, down conductors, and earthing connections are inspected and tested. Protection effectiveness against surges is verified.
Earthing System Testing
Earth resistance and grounding network integrity are measured. Compliance with safety standards is verified to protect personnel and equipment.

Low Voltage (LV) Cable Testing
Studies for all relay types across diverse system architectures.
MV Switchgear Maintenance and Testing
ADVEC provides maintenance and testing services for Medium Voltage Switchgear (MVSG) to ensure operational reliability, safety, and extended equipment life. Our services support factories, industrial facilities, and utilities in maintaining optimal performance of their electrical distribution systems.
Our services include
Preventive Maintenance
We perform regular inspections, cleaning, lubrication, and functional checks to prevent failures and ensure reliable switchgear operation.
Diagnostic Testing
We carry out electrical and mechanical tests, including insulation resistance, contact resistance, and functional testing of breakers and relays.
Corrective Maintenance Support
We provide on-site troubleshooting and corrective actions for faulty equipment to minimize downtime and operational disruption.
Performance Verification
We verify switchgear performance under load and operational conditions to ensure compliance with manufacturer specifications and safety standards.
Power Quality Measurement and Assessment
Ensuring Reliable Power Distribution with Expert Care
ADVEC provides comprehensive power quality measurement and assessment services to ensure reliable and stable electrical systems. Our services identify disturbances, evaluate compliance with standards, and recommend solutions to improve system performance and protect equipment.
Our Expertise
On-Site Measurements
We perform detailed measurements of voltage, current, harmonics, flicker, and other power quality parameters using advanced instruments.
Power Quality Assessment
We analyze measurement data to identify disturbances, deviations, and potential risks affecting system reliability and equipment performance.
Recommendations for Improvement
We provide actionable recommendations, including filtering, mitigation techniques, and design improvements to enhance power quality.
Reporting
We deliver comprehensive assessment reports summarizing findings, analysis, and practical solutions for facility operators and project owners.
Root Cause Analysis (RCA)
ADVEC provides systematic Root Cause Analysis (RCA) for electrical faults and failures in substations and industrial power systems. Our approach combines on-site measurements, standards-based analysis, and practical recommendations to prevent recurrence and improve system reliability.
Our services include
On-Site Measurements
We perform detailed measurements of equipment and system parameters to accurately identify faults and abnormal operating conditions.
Technical Analysis
We analyze incidents using industry standards, simulation tools, and engineering expertise to determine the root cause of failures.
Recommendations for Solutions
We provide clear, practical recommendations to correct issues, enhance system performance, and prevent future failures.
Reporting
We prepare comprehensive RCA reports with findings, analysis method.
Transformer Oil purification
Trusted Expertise Across Industries
ADVEC provides complete transformer oil purification services to maintain insulation quality and extend transformer life. Our process ensures removal of moisture, dissolved gases, and impurities in compliance with international standards.
We provide comprehensive energy efficiency measurement services for both electrical and mechanical systems. Our services identify inefficiencies, optimize performance, and reduce operational costs while ensuring compliance with international standards.
Our Expertise
Oil Filtration and Dehydration
Transformer oil is filtered to remove particles and moisture. Dehydration is performed to restore dielectric strength and prevent insulation degradation.
Testing and Verification
Dielectric strength, acidity, and moisture content are tested before and after purification. The transformer is returned to service with verified oil quality for reliable performance.
PV Plant Cold and Hot Testing
ADVEC provides comprehensive testing services for PV plants, covering both cold and hot commissioning stages. These tests ensure system functionality, safety, and reliable operation before commercial operation.
Our Expertise
Cold Testing
Perform checks of electrical connections, Open circuit test, Short circuit test, cable continuity, and insulation resistance. Verify equipment installation, control schemes, and protection coordination.
Hot Testing
Conduct tests under live conditions, including inverter start-up, grid synchronization, functional testing of protection relays, and performance verification of PV modules and transformers. Ensure safe and efficient operation under real operating conditions.
Monitoring and Performance Verification
Measure voltage, current, power output, and system response. Identify and correct anomalies to optimize plant performance before handover.
Energy Efficiency Measurement
Our Expertise
Analyze power consumption, voltage, current, harmonics, and reactive power. Identify inefficiencies in transformers, motors, and lighting systems to improve energy usage.
Mechanical Systems Assessment
Evaluate HVAC, pumps, compressors, and other mechanical equipment. Assess operating performance, energy losses, and potential optimization opportunities.
Integrated System Analysis
Combine electrical and mechanical data to identify cross-system inefficiencies. Recommend improvements for overall plant energy performance.
Reporting and Recommendations
Provide detailed reports with energy metrics, benchmarking, and actionable recommendations. Support management in implementing energy-saving strategies and sustainability measures.
Reverse Power Relays (EPC Scope – PV Plant)
ADVEC highlights that reverse power protection is critical for PV plants to prevent power flow from the grid back into the generators, protecting generators, transformers, and connected equipment. Under the EPC scope, proper selection, setting, and testing of reverse power relays are ensured.
Our Expertise
Relay Selection and Settings
Select reverse power relays according to generator ratings and system requirements. Configure pickup levels, time delays, and coordination with other protection devices.
Installation Supervision
Supervise correct installation of relays, wiring, and communication interfaces. Ensure integration with the plant’s protection and control systems.
Testing and Commissioning
Perform functional and simulation tests to verify relay operation under reverse power conditions. Confirm that trip signals correctly isolate the generator or inverter when required.
Documentation and Handover
Supervise correct installation of relays, wiring, and communication interfaces. Ensure integration with the plant’s protection and control systems.
Electrical Testing Devices Rental
ADVEC provides rental services for a wide range of electrical testing devices to support commissioning, maintenance, and troubleshooting activities. Our equipment ensures accurate, reliable measurements while optimizing project costs and timelines.
Our Expertise
Timing and Contact Testers
Equipment to measure breaker operation timing and contact performance. Ensures precise switching and proper coordination of protection devices.
Secondary Injection Sets
Used for testing protection relays and control schemes. Verifies relay operation, pickup, and coordination under simulated fault conditions.
Earthing Testers
Measure earth resistance and grounding network integrity. Ensures safety compliance and effective protection against faults.
Insulation Testers (Megger)
Test insulation resistance of cables, transformers, and switchgear. Detects degradation, moisture, or installation defects.
VLF (Very Low-Frequency) Test Sets
Used for testing medium voltage cables and XLPE insulation. Detects insulation weaknesses and ensures long-term cable reliability.
High-Potential (Hi-Pot) Testers
Verify dielectric strength of HV equipment, cables, and transformers. Ensures insulation integrity under operating and fault conditions.

Transformer Winding Resistance Meters
Measure winding resistance of transformers to detect abnormalities, loose connections, or thermal issues.
Transformer Turns Ratio (TR) Testers
Check the turns ratio and polarity of transformers. Ensures correct voltage transformation and operational performance.
Transformer Oil Breakdown Testers
Evaluate dielectric strength of transformer oil. Confirms oil quality and insulation performance before commissioning.
Construction and Testing Supervision
ADVEC provides expert supervision services for construction and testing activities of electrical infrastructure projects. Our goal is to ensure compliance with design specifications, quality standards, and safety regulations.
Our Expertise
Construction Supervision
Monitor installation of electrical equipment, switchgear, transformers, and cabling, Verify adherence to design drawings, specifications, and best engineering practices.
Testing and Commissioning Supervision
Oversee electrical and mechanical testing procedures, including insulation, functional, and protection tests. Ensure accurate execution, documentation, and compliance with standards.
Quality and Safety Assurance
Enforce safety protocols and quality control measures throughout construction and testing phases. Ensure that the project meets operational reliability and regulatory requirements.
Reporting and Handover
Document progress, observations, and test results. Provide final reports to support system handover and operational readiness certification.






