Zhonghangshidai ZJC-100E Voltage Breakdown Tester

Overview

The Zhonghangshidai ZJC-100E Voltage Breakdown Tester is a precision-engineered high-voltage dielectric strength testing system designed for quantitative evaluation of electrical insulation integrity in solid dielectric materials. It operates on the principle of controlled voltage ramping—either AC (50 Hz) or DC—to induce dielectric failure under standardized stress conditions. The instrument applies a continuously increasing electric field across a defined electrode geometry until catastrophic breakdown occurs, enabling calculation of dielectric strength (kV/mm) and time-to-failure under sustained voltage (dielectric withstand). Its architecture conforms to the fundamental physical model described in IEC 60243-1 and ASTM D149, where breakdown voltage is determined as the minimum voltage at which a disruptive discharge bridges the gap between electrodes through the specimen. This measurement is critical for quality assurance in production of insulating polymers, laminates, ceramics, elastomers, and composite substrates used in power electronics, aerospace wiring systems, transformer components, and medical device enclosures.

Key Features

• Full 100 kV AC/DC output capability with ±1% voltage and current measurement accuracy, traceable to national metrological standards.
• Nine-tier hardware-based safety interlock system: includes electromagnetic door latch monitoring, real-time overcurrent detection (0–50 mA range), zero-voltage reset logic, independent earth-ground verification, and dual-stage automatic discharge (resistive + electromagnetic) within <100 ms post-breakdown.
• Dual-mode operation: standalone control via 10.1″ industrial-grade capacitive touchscreen (no PC required) or enhanced data acquisition and visualization via optional Windows-based software with real-time multi-curve overlay, color-coded trend analysis, and configurable pass/fail thresholds.
• Modular high-voltage subsystem: oil-immersed 10 kVA transformer with toroidal core design, digital servo-controlled autotransformer, and isolated A/D conversion circuitry ensuring EMI resilience in laboratory environments.
• Configurable voltage ramp profiles: linear (0.1–3 kV/s), stepwise (programmable hold intervals), or timed withstand (0–4 h, extendable to 8 h per DIN EN 60243-2 for long-term aging studies).
• Integrated environmental management: built-in centrifugal exhaust fan (≥120 m³/h), LED task lighting, and sealed epoxy-fiber electrode support structure resistant to corona erosion and hydrolytic degradation.
• Wireless operational flexibility: Bluetooth 5.0 interface enables remote start/stop, parameter adjustment, and live telemetry from ≥15 m distance—eliminating signal degradation from shielded HV chambers or Faraday cages.

Sample Compatibility & Compliance

The ZJC-100E accommodates standard and custom electrode configurations per international test standards, including disk (φ25 mm, φ75 mm), spherical (φ20/φ75 mm), cylindrical (φ6 mm), and multi-point arrays for heterogeneous or anisotropic specimens. It supports both air-gap and immersion testing using ASTM D877-compliant 25# mineral oil (included), with optional high-temperature oil baths (up to 150 °C) or climate-controlled test chambers (−40 °C to +180 °C) available as accessories. The system meets full regulatory alignment with GB 1408.1–2006 (equivalent to IEC 60243-1), GB 1408.2–2006 (DC-specific requirements), ASTM D149, and UL 746A for comparative tracking index (CTI) pre-screening. All firmware and software modules are structured to support 21 CFR Part 11-compliant electronic records when paired with validated PC configuration—including user authentication, immutable audit trails, and electronic signatures.

Software & Data Management

The optional ZHSDielectric Suite provides ISO/IEC 17025-aligned data governance. It captures raw voltage/current waveforms at 10 kHz sampling rate, auto-generates calibrated breakdown strength values normalized to specimen thickness, and stores metadata (operator ID, ambient temperature/humidity, electrode type, oil condition, calibration date) in encrypted SQLite databases. Reports comply with GLP/GMP documentation requirements: PDF exports include header/footer watermarks, revision-controlled templates, and embedded digital signatures. Data export supports CSV, Excel (.xlsx), and Word (.docx) formats; UVC-compatible USB flash drive dumping enables offline archival without network dependency. The software implements role-based access control (RBAC) and maintains tamper-evident logs of all configuration changes, test executions, and result modifications—fully auditable for FDA, CNAS, or TÜV assessments.

Applications

This tester serves R&D laboratories and QC departments evaluating material performance across sectors: polymer compounders validating crosslink density in silicone rubbers (per GB/T 1695); capacitor film manufacturers certifying pinhole-free metallization layers; PCB substrate suppliers verifying resin system compatibility with high-speed digital signaling; and EV battery pack integrators screening thermal interface materials for dielectric stability under thermal cycling. It is routinely deployed for incoming inspection of ceramic insulators, qualification of aerospace-grade polyimide tapes, and accelerated life testing of wire enamel coatings per MIL-W-6805. Its programmable ramp logic also supports research into partial discharge inception voltage (PDIV) thresholds and space charge accumulation dynamics in nanocomposite dielectrics.

FAQ

What standards does the ZJC-100E directly support?
It is factory-configured and verified against GB 1408.1–2006, GB 1408.2–2006, ASTM D149, GB/T 1695–2005, and related national standards for insulating materials.
Can the system perform both AC and DC breakdown tests?
Yes—dual-mode high-voltage source delivers sinusoidal 50 Hz AC or ripple-free DC output, with independent calibration certificates for each mode.
Is operator training included with purchase?
Comprehensive on-site commissioning, SOP development support, and ISO/IEC 17025 documentation guidance are provided as part of standard delivery.
How is data integrity ensured during long-duration withstand tests?
Continuous waveform logging with battery-backed real-time clock, redundant storage (internal SSD + USB export), and CRC-32 checksum validation prevent data corruption over multi-hour runs.
Are custom electrode geometries supported?
Yes—mechanical drawings for non-standard electrodes (e.g., needle-plane, rod-plane, or conformal surface contacts) can be reviewed by our applications engineering team for feasibility and compliance mapping.