Jianhu JH-Series Dielectric Breakdown Voltage Tester
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | JH-Series Dielectric Breakdown Voltage Tester |
| Price Range | USD 630 – 6,300 |
Overview
The Jianhu JH-Series Dielectric Breakdown Voltage Tester is an industrial-grade high-voltage testing instrument engineered for precise determination of the dielectric strength of insulating materials under standardized AC/DC voltage stress. Operating on the principle of controlled voltage ramping—per ASTM D149, IEC 60243-1, and GB/T 1408.1—the system applies a continuously increasing voltage across a conditioned specimen until electrical breakdown occurs, at which point the peak voltage prior to failure is recorded as the dielectric breakdown strength (kV/mm or kV). Designed for laboratories and QC departments in polymer manufacturing, cable & wire insulation production, transformer oil evaluation, and aerospace composite R&D, the JH-Series integrates real-time waveform acquisition, millisecond-level response circuitry, and embedded safety interlocks to ensure repeatability, operator protection, and regulatory traceability.
Key Features
- Sub-10 ms system response time from voltage initiation to breakdown detection, enabled by high-speed analog-to-digital conversion and optimized HV control loop architecture
- Integrated multi-parameter monitoring: real-time acquisition of applied voltage (0–100 kV), leakage current (0.1 µA–20 mA), ambient temperature (±0.5 °C), and electrode gap status
- AI-assisted anomaly detection with automatic emergency shutdown upon overcurrent, thermal excursion (>60 °C), arc detection, or ground fault condition
- 10.1-inch capacitive touch display with dynamic dual-channel plotting: simultaneous voltage-vs.-time and current-vs.-time curves updated at ≥50 Hz
- Preloaded test protocols compliant with ASTM D149 (solid dielectrics), ASTM D877 (transformer oils), and IEC 60156 (insulating liquids)
- Modular HV transformer design with oil-immersed core, rated for continuous operation at 50/60 Hz, with optional DC polarity switching
Sample Compatibility & Compliance
The JH-Series accommodates standard solid specimens (e.g., sheets, films, molded parts) per ASTM D149 dimensions (≥100 mm × 100 mm × 3 mm), liquid samples in ASTM D877-compliant test cells (25 mm electrode spacing, 2 mm gap), and elastomeric components mounted on adjustable brass electrodes. All test fixtures meet IEC 61000-4-5 surge immunity requirements and are constructed from corrosion-resistant stainless steel and ceramic insulators. The instrument complies with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), meets Class I electrical safety per IEC 61010-1, and supports GLP/GMP audit readiness via timestamped test logs, user-access-level authentication, and non-editable raw data storage.
Software & Data Management
The embedded firmware includes a full-featured test management suite supporting method creation, parameter locking, and batch execution scheduling. Test results—including breakdown voltage, time-to-failure, pre-breakdown current slope, and curve metadata—are stored in IEEE C37.118-compliant binary format with SHA-256 checksums. Export options include CSV (for Excel/Origin), PDF reports with digital signatures, and XML files compatible with LIMS platforms (e.g., LabWare, STARLIMS). Optional PC software provides advanced post-processing: Weibull distribution fitting for statistical breakdown analysis, comparative overlay of up to 12 curves, and automated pass/fail flagging against configurable limits per ISO/IEC 17025 clause 7.8.
Applications
- Quality control of polymeric insulation layers in automotive wiring harnesses and EV battery modules
- Evaluation of dielectric stability in silicone rubber gaskets used in high-voltage switchgear enclosures
- Accelerated aging studies of epoxy resins under combined thermal-electrical stress (IEC 60270 partial discharge correlation)
- Transformer oil qualification per ASTM D877 and D1816, including moisture and particulate sensitivity profiling
- Research into nanocomposite dielectrics (e.g., Al₂O₃/epoxy, BN/polyimide) where micro-discharge onset precedes macroscopic breakdown
- Validation of conformal coatings on printed circuit boards per IPC-CC-830B
FAQ
What voltage ranges does the JH-Series support?
Standard configuration covers 0–50 kV AC (rms) and 0–70 kV DC; optional high-range models extend to 100 kV AC and 120 kV DC.
Is the system compliant with FDA 21 CFR Part 11 for electronic records?
Yes—when configured with optional audit trail module, it enforces electronic signatures, role-based access control, and immutable record retention per Part 11 Annex 11 requirements.
Can the instrument perform step-stress or impulse testing?
It supports programmable step-voltage sequences (up to 10 steps) and withstand tests per IEC 60060-1; full lightning impulse (1.2/50 µs) capability requires external coupling unit (sold separately).
How is calibration traceability maintained?
Each unit ships with NIST-traceable calibration certificate (valid 12 months); internal HV sensor self-check occurs at power-on and before every test sequence.
Does the system support remote operation and integration with MES?
Yes—via Ethernet (TCP/IP Modbus TCP and RESTful API), enabling direct integration with factory MES/SCADA systems and centralized test fleet monitoring.
