Adiradh offers the OTD – Oil Tan Delta test set as a precise solution for insulation condition assessment in oil-filled electrical assets. Moreover, the system is designed to support reliable dielectric loss measurements under controlled test conditions. Therefore, utilities and test engineers can evaluate oil-paper insulation health with confidence. In addition, the test set enables accurate tan delta and capacitance testing, which helps identify aging, moisture, and contamination. Also, the compact design supports both laboratory and field testing needs. Furthermore, the equipment ensures stable output and repeatable results during routine diagnostics. However, the operation remains simple, which reduces test time and human error. Consequently, maintenance planning becomes more effective and data driven. As a result, asset life can be better predicted and managed. Finally, the OTD – Oil Tan Delta test set supports preventive maintenance programs by delivering clear, consistent, and comparable test results for oil-insulated power equipment.

The OTD – Oil Tan Delta test set is developed for dielectric dissipation factor measurement of insulating oil and oil-impregnated systems. Moreover, it supports accurate tan delta, capacitance, and test voltage control for condition-based monitoring. Therefore, the system is suitable for routine testing, commissioning, and quality control. In addition, it complies with standard oil testing practices used in power utilities and testing laboratories. Also, the test set provides stable measurement even at low loss values. Furthermore, its modular design allows easy integration with standard oil test cells. However, safety features are maintained to ensure controlled operation during high-voltage testing. Consequently, engineers can obtain repeatable and comparable data across multiple tests. As a result, trending of insulation parameters becomes practical. Finally, the overview highlights the test set as a dependable diagnostic tool for oil insulation evaluation.
Datasheet for OTD – Oil Tan Delta test set
User Guide for OTD – Oil Tan Delta test set
The OTD – Oil Tan Delta test set is a dielectric measurement system used to determine dissipation factor, relative permittivity, and capacitance of insulating oil. Moreover, it operates with a controlled AC test voltage applied across a calibrated oil test cell. Therefore, dielectric losses caused by polarization and conduction are accurately quantified. In addition, the system includes precision measurement circuitry, voltage control, and current sensing components. Also, it supports temperature-compensated evaluation for improved result consistency. Furthermore, the test set is compatible with standard IEC and IEEE oil testing methodologies. However, the design remains compact for laboratory benches and mobile test setups. Consequently, it can be used for acceptance testing and condition monitoring. As a result, abnormal moisture ingress, contamination, or insulation degradation can be detected early. Finally, the product delivers stable electrical performance with repeatable diagnostic accuracy.
The OTD – Oil Tan Delta test set uses AC dielectric loss measurement technology for insulation diagnostics. Moreover, it measures phase angle between applied voltage and resulting current to calculate tan delta accurately. Therefore, even small changes in insulation quality are detectable. In addition, precision voltage regulation ensures consistent test conditions. Also, low-noise signal processing improves measurement stability. Furthermore, integrated safety interlocks protect both operator and equipment. However, the testing procedure remains straightforward, which simplifies training requirements. Consequently, test results are reliable and easy to interpret. As a result, maintenance decisions can be based on objective data. Finally, the technology supports trend analysis, which helps extend asset life and reduce unexpected failures.
Accurate tan delta and capacitance measurement
Controlled AC test voltage output
Compatible with standard oil test cells
High measurement stability at low loss values
Integrated safety and protection circuits
Suitable for laboratory and field use
Insulating oil quality testing
Transformer oil condition assessment
Acceptance testing of new oil
Maintenance testing of oil-filled equipment
Laboratory dielectric analysis
Early detection of insulation degradation
Reliable and repeatable test results
Supports condition-based maintenance
Simple operation with clear measurements
Improves asset reliability and planning
Adiradh Energy offers OTD – Oil Tan Delta test set in India; Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur; Durgapur; Kharagpur; Raigarh; Bhilai; Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities
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