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- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The OVT-80T Insulation Oil Tester is a professional, fully automatic dielectric strength (breakdown voltage, BDV) test system engineered for accurate performance evaluation of insulating oils used in high-voltage electrical equipment. Adopting a high-precision voltage regulation circuit, intelligent microprocessor control, and standard-compliant test logic, it delivers repeatable, traceable breakdown voltage measurement for insulating oils, the core indicator for assessing oil insulation performance, moisture content, and contamination level.
With a 0~80kV continuously adjustable AC output, pre-loaded global standard test presets, and fully automated test workflow, this tester eliminates human error and ensures strict compliance with international test standards. Fully compliant with IEC 60156, ASTM D877, ASTM D1816, and GB/T 507, it is the industry-preferred solution for power utilities, transformer manufacturers, industrial maintenance teams, third-party testing institutions, and research laboratories worldwide. It is optimized for both fixed laboratory quality control and on-site field maintenance testing of transformer oil, circuit breaker oil, and other insulating fluids.
Specifications
| Parameter Category | Specification |
| Core Electrical Performance | |
| Model | OVT-80T |
| Rated Output Voltage | 0~80kV AC, continuously adjustable |
| Output Frequency | 50/60Hz, automatic tracking |
| Output Waveform | Pure sine wave, THD <3% |
| Measurement Accuracy | ±1% Full Scale |
| Breakdown Response Time | <10ms |
| Boost Rate | 0.5/1/2/3kV/s adjustable, standard compliant |
| Short-Circuit Current | ≤5mA |
| Test Standard & Parameters | |
| Pre-Loaded Standards | IEC 60156, ASTM D877, ASTM D1816, GB/T 507 |
| Test Cycles | 1~99 times programmable |
| Stirring Time | 0~999s adjustable |
| Standing Time | 0~999s adjustable |
| Electrode Gap | 1mm/2mm/2.5mm standard, adjustable |
| Compatible Electrodes | Spherical, mushroom (VDE), flat disc electrodes |
| Test Cup Capacity | 400mL standard oil cup |
| Operation & Data Management | |
| Display | 7-inch high-brightness color LCD touchscreen |
| Operation Modes | Fully automatic mode + manual mode |
| Data Storage | 10,000+ groups of test records, full traceability |
| Data Export | USB 2.0, Excel/PDF format report export |
| Communication | RS232, PC remote control support |
| Printer | Built-in high-speed thermal printer |
| Environmental & Physical Specifications | |
| Power Supply | AC 220V±10%, 50/60Hz |
| Rated Power Consumption | <300W |
| Operating Temperature | 0°C ~ +40°C |
| Storage Temperature | -20°C ~ +60°C |
| Operating Humidity | ≤75% RH (non-condensing) |
| Protection Grade | IP30 main unit |
| Dimensions | 415mm × 315mm × 315mm |
| Net Weight | ~23kg |
| Compliance Standards | IEC 60156, ASTM D877, ASTM D1816, GB/T 507, IEC 61010, CE |
Applications
Core Test Objects
· Insulating mineral oil for power transformers, distribution transformers, and instrument transformers (CT/PT)
· Insulating oil for high-voltage circuit breakers, switchgears, and GIS equipment
· Insulating fluids for capacitors, reactors, and other HV electrical equipment
· Synthetic ester insulating oil, natural ester (vegetable-based) insulating oil, and other environmentally friendly insulating fluids
· New oil incoming inspection, in-service oil routine monitoring, and post-repair oil quality verification
Industry-Specific Usage
· Electric Power Utilities: Routine oil quality monitoring, substation equipment preventive maintenance, and fault diagnosis for transmission and distribution assets
· Transformer & Electrical Equipment Manufacturers: Production line quality control, factory outgoing inspection, and type testing for transformers and HV equipment
· Industrial & Petrochemical Facilities: Insulating oil testing for critical power equipment in high-reliability production plants and hazardous areas
· Rail Transit & Urban Infrastructure: Traction power supply equipment insulating oil testing for metro, high-speed railway, and urban rail transit systems
· Third-Party Testing & Certification Bodies: Compliance testing, performance verification, and arbitration testing of insulating oils
· Research & Academic Institutions: Insulating material research, oil aging performance testing, and high-voltage engineering experimental research
Advantages
Strict Global Standard Full Compliance
Fully designed, calibrated, and tested in accordance with IEC 60156 (Insulating liquids – Determination of the breakdown voltage at power frequency), ASTM D877, ASTM D1816, and GB/T 507 international and domestic standards. Test data is globally recognized, meeting the strict requirements of transformer export certification, grid access, and third-party laboratory accreditation.
Fully Automated Unattended Operation
One-click fully automatic test workflow covers the entire test cycle from sample preparation to data calculation and report generation. This eliminates manual operation and human error, drastically reduces labor costs, and significantly improves test efficiency for batch oil sample testing.
Unmatched Measurement Accuracy & Repeatability
±1% full-scale measurement accuracy, ultra-fast breakdown response, and automatic multi-cycle data statistics ensure highly repeatable and reliable test results. This enables accurate assessment of oil insulation degradation, moisture ingress, and contamination, providing a definitive basis for oil replacement and equipment maintenance decisions.
Ultimate Operator Safety Protection
Multi-layer redundant safety interlocks, including safety door interlock, zero-position start interlock, over-voltage/over-current protection, and immediate breakdown cut-off, ensure maximum operator safety during high-voltage testing. Fully enclosed test chamber eliminates the risk of electric shock and oil splash.
Lab & Field Dual-Purpose Design
Compact portable structure and rugged industrial housing make it suitable for both fixed laboratory precision testing and mobile on-site field maintenance. Wide operating temperature range and anti-interference design ensure stable performance in harsh outdoor substation environments, with no need for a dedicated test room.
Low Total Cost of Ownership
Industrial-grade components ensure long service life with minimal maintenance costs. Integrated design eliminates the need for additional test equipment, reducing upfront investment. Accurate oil quality assessment helps users optimize oil replacement cycles, extend equipment service life, and avoid costly unplanned outages.
FAQ
Q: What international standards does the OVT-80T comply with?
A: The tester is fully designed, calibrated, and tested in accordance with IEC 60156 (Insulating liquids – Breakdown voltage determination), ASTM D877, ASTM D1816, and GB/T 507 international and domestic standards. Test data is globally recognized for oil quality certification and compliance reporting.
Q: What is the maximum test voltage and measurement accuracy?
A: The rated output voltage is 0~80kV AC continuously adjustable, with a measurement accuracy of ±1% full scale, and <10ms ultra-fast breakdown response for accurate breakdown voltage recording.
Q: Is the test process fully automatic?
A: Yes. The tester supports one-click fully automatic test workflow, including automatic stirring, standing, voltage boost, breakdown detection, data recording, and multi-cycle repeat. It also supports manual mode for customized test requirements.
Q: What types of insulating oils can it test?
A: It is suitable for all types of insulating fluids, including mineral insulating oil for transformers and circuit breakers, synthetic ester oil, natural ester (vegetable-based) insulating oil, and other HV equipment insulating fluids.
Q: What electrode types and gaps are supported?
A: It is compatible with spherical, mushroom (VDE), and flat disc electrodes, with standard adjustable gaps of 1mm, 2mm, and 2.5mm, fully meeting the requirements of different test standards.
Q: Can it generate and export standard test reports?
A: Yes. It has a built-in thermal printer for on-site real-time report printing, and supports USB export of test records and automatically generated standard test reports in Excel/PDF format, with full traceability for compliance documentation.
Q: Is it suitable for on-site field use?
A: Yes. It features a compact portable structure with a net weight of only ~23kg, rugged industrial housing, and wide operating temperature range, making it ideal for both laboratory testing and on-site field maintenance in substations and industrial facilities.
