JH-Jianguo High-Voltage Dielectric Breakdown Tester Model JH-DBT Series
| Brand | JH-Jianguo |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Supplier |
| Country of Origin | China |
| Model | JH-DBT Series |
| Price Range | USD 2,800 – 28,000 |
Overview
The JH-Jianguo High-Voltage Dielectric Breakdown Tester (Model JH-DBT Series) is an industrial-grade electrical safety testing instrument engineered for precise determination of dielectric strength in solid and liquid insulating materials under controlled AC/DC high-voltage stress. Based on the principle of controlled voltage ramping until electrical breakdown occurs—defined as the point at which insulation resistance collapses and current surges—the system complies with core test methodologies outlined in IEC 60243-1, ASTM D149, GB/T 1408.1, and ISO 60243. Designed for laboratories and quality control departments in power transmission, transformer manufacturing, cable production, and electrical equipment certification, the JH-DBT Series delivers traceable, repeatable, and auditable breakdown voltage measurements across a nominal output range of 0–100 kV (AC) and 0–120 kV (DC), with voltage measurement accuracy maintained at ±1% of reading over full scale.
Key Features
- Multi-mode voltage ramping: programmable continuous linear, stepwise incremental, and impulse-type voltage application to simulate real-world transient overvoltage conditions.
- Dual-range high-voltage generation: selectable AC (50/60 Hz) and DC outputs with independent calibration paths and built-in polarity reversal for comprehensive material characterization.
- Real-time parameter monitoring: synchronized acquisition of breakdown voltage (kV), leakage current (µA–mA), time-to-breakdown (ms–s), and arc duration with 10 ms sampling resolution.
- Integrated safety interlock architecture: automatic power cutoff upon detection of flashover, ground fault, overcurrent (>2 mA), or enclosure door opening—fully compliant with IEC 61010-1 CAT III 1000 V requirements.
- Modular high-voltage transformer and solid-state regulator design: ensures thermal stability during extended test cycles and enables field-replaceable components without recalibration.
- IP54-rated enclosure with reinforced polycarbonate viewing window and grounded copper-mesh shielding to suppress EMI during high-energy discharge events.
Sample Compatibility & Compliance
The JH-DBT Series accommodates standardized test specimens per IEC 60243-1 (disk, rod, sheet) and ASTM D149 (150 mm × 150 mm plates; 3.2 mm thickness), supporting both electrode configurations: spherical-spherical (for liquids) and cylindrical-plane (for solids). It accepts sample holders compatible with ASTM D877 and D1816 geometries. All firmware and hardware configurations are validated against GLP/GMP documentation standards and support 21 CFR Part 11-compliant electronic signatures when paired with optional audit-trail-enabled software modules. Test reports include embedded metadata (operator ID, timestamp, environmental temperature/humidity, electrode gap, conditioning history) required for ISO/IEC 17025 accreditation.
Software & Data Management
Equipped with JH-TestSuite v4.2 (Windows 10/11 compatible), the system provides configurable test sequences, pass/fail logic trees, statistical analysis (Weibull distribution fitting, mean breakdown voltage ± standard deviation), and automated report generation in PDF/XLSX formats. Raw data is stored in encrypted SQLite databases with SHA-256 hashing; all modifications are logged with user ID, timestamp, and reason code. Optional cloud synchronization enables centralized fleet management for multi-site laboratories. The software supports export to LIMS via ASTM E1384-compliant XML schema and includes built-in validation protocols for IQ/OQ documentation.
Applications
- Qualification testing of polymer-based insulators, epoxy resins, silicone rubber bushings, and composite spacers used in HV substations.
- Routine QC of transformer oils (mineral, synthetic ester, natural ester) per IEEE C57.106 and IEC 60156.
- Development-stage evaluation of nanocomposite dielectrics for aerospace wiring harnesses and EV battery module encapsulation.
- Third-party certification testing for UL 746C, EN 60695-2-11, and GB 4943.1 compliance in consumer electronics and industrial controls.
- Research into partial discharge inception voltage (PDIV) correlation with bulk dielectric strength in thin-film capacitor dielectrics.
FAQ
What international standards does the JH-DBT Series support out-of-the-box?
It natively implements test routines aligned with IEC 60243-1, ASTM D149, GB/T 1408.1, and ISO 60243. Custom protocol loading is supported via XML configuration files.
Is the system suitable for testing high-viscosity insulating oils?
Yes—equipped with heated oil cup option (up to 100°C) and magnetic stirrer integration to ensure homogeneous particle suspension during testing per IEC 60156.
Can test data be integrated into an existing enterprise LIMS?
Yes—via ASTM E1384-compliant XML export or direct ODBC connection using optional JH-LIMS Gateway module.
Does the instrument include calibration certificates traceable to NIM or NIST?
Each unit ships with a factory calibration certificate traceable to the National Institute of Metrology (NIM), China; UKAS/NIST-traceable calibration services are available as an add-on.
What maintenance intervals are recommended for long-term reliability?
Preventive maintenance every 12 months includes HV transformer oil analysis, contact resistance verification, grounding continuity check, and firmware integrity validation—documented per ISO 13849-1.
