North Guangjing Precision Instrument BGJY-100KV High-Precision Voltage Breakdown Tester

Overview

The North Guangjing Precision Instrument BGJY-100KV High-Precision Voltage Breakdown Tester is an engineered solution for measuring the dielectric strength of solid insulating materials under controlled AC and DC voltage stress. Based on the fundamental principle of dielectric breakdown—where an electric field exceeds the material’s intrinsic insulation threshold, resulting in irreversible conduction—the instrument applies precisely regulated high-voltage stress across standardized electrode configurations to determine the critical voltage at which electrical failure occurs. Designed in strict accordance with GB/T 1408.1 (equivalent to IEC 60243-1 and ASTM D149), it supports three standardized test protocols: dielectric withstand testing (fixed voltage hold), stepwise ramp testing (incremental voltage application with dwell time), and full breakdown testing (continuous ramp until failure). Its dual-mode output (AC/DC), programmable ramp rates (0–10 kV/s, continuously adjustable), and real-time current monitoring enable rigorous evaluation of insulation integrity across polymers, elastomers, laminates, and composite sheets used in power transmission, aerospace, automotive electronics, and medical device packaging.

Key Features

• Modular high-voltage architecture featuring a 3 kVA oil-immersed test transformer with optional upgrade paths to 5 kVA or higher for extended duty cycles and thermal stability.
• Dual-channel, high-fidelity signal acquisition: simultaneous real-time sampling of output voltage (0–100 kV) and leakage current (0.1–20 mA range) at ≥10 kHz sampling rate via embedded Siemens S7-1200-based control unit.
• USB 3.0 interface supporting data throughput up to 3 MB/s—eliminating latency inherent in legacy RS-232 systems and ensuring sub-millisecond synchronization between voltage ramp command and actual output response.
• Intelligent auto-stop logic configurable by either voltage collapse (>5% drop from setpoint) or preset leakage current threshold (0.1–10 mA, user-defined), minimizing specimen over-stress and improving repeatability.
• Multi-electrode compatibility: standardized flat (25×25 mm, 38×38 mm), spherical (25 mm radius), rectangular (25×75 mm), cylindrical (6 mm diameter), and custom fixtures for tubular or irregular geometries—all compliant with IEC 60243-1 electrode geometry requirements.
• Full AC/DC capability with independent waveform regulation: sinusoidal 50/60 Hz AC output and ripple-free DC output (<0.5% RMS ripple), both calibrated traceably to national metrology standards.

Sample Compatibility & Compliance

The BGJY-100KV accommodates rigid and semi-rigid dielectric specimens per ISO 293 (compression-molded thermoplastics), ISO 294-1/-3 (injection-molded bars and plaques), ISO 295 (thermoset compression molds), and ISO 10724 (thermoset injection test pieces). It supports film thicknesses from 25 µm to 5 mm and sheet dimensions up to 150 × 150 mm. All test procedures adhere to GLP-aligned documentation practices: operator authentication, timestamped audit trails, parameter versioning, and electronic signature support per FDA 21 CFR Part 11 readiness (when deployed with validated software configuration). Certified compliance includes GB/T 1408.1–2016, IEC 60243-1:2013, ASTM D149–13, and harmonized clauses of ISO 294-1:1996, ISO 295:1991, and IEC 60674-2:1988. Environmental conditioning interfaces allow integration with external climate chambers for humidity- and temperature-controlled testing per GB/T 10580.

Software & Data Management

The proprietary Windows-based test suite (v4.2.1) provides full lifecycle test management: user role assignment (administrator, technician, reviewer) with encrypted password protection; parameter templates saved per material class (e.g., “Epoxy Resin – DC Ramp”, “Polyimide Film – AC Withstand”); and automated report generation compliant with ISO/IEC 17025 technical record requirements. Data visualization includes synchronized voltage-current-time plots with overlay capability for up to seven test curves using distinct color coding. Statistical analysis tools calculate mean breakdown voltage, Weibull distribution parameters (β, η), coefficient of variation (CV%), and confidence intervals (95%). Raw datasets export to CSV, XML, or PDF; metadata embedding supports long-term archival per ISO 15489-1. Audit logs record all parameter changes, test initiations, stop events, and user logins with immutable timestamps.

Applications

This tester serves QC laboratories validating insulation performance in cable jacketing compounds (XLPE, EPR), PCB substrate laminates (FR-4, polyimide), transformer bushing materials, medical-grade silicone encapsulants, aerospace-grade composites (carbon fiber/epoxy), and battery separator films. It supports R&D workflows evaluating voltage endurance under accelerated aging (thermal cycling + humidity), partial discharge onset mapping, and comparative screening of nanofiller-modified polymer dielectrics. In manufacturing environments, it performs incoming raw material verification, lot release testing, and periodic equipment qualification per ISO/IEC 17025 Clause 6.4. The system also enables compliance verification for UL 746C, IEC 60601-1 (medical electrical safety), and IEC 61851-23 (EV charging infrastructure insulation).

FAQ

What safety interlocks are integrated into the BGJY-100KV system?
The instrument features dual-redundant hardware interlocks: door-position sensing on the test chamber (automatically de-energizes HV circuit upon opening) and ground-fault detection on all HV output paths. A dedicated discharge probe interface supports post-test residual voltage dissipation per IEC 61010-1 Annex H.
Can the system perform pre-conditioning according to IEC 60212?
Yes—external environmental chamber integration is supported via analog I/O and Modbus TCP; standard test sequences include mandatory 24-hr conditioning at 23°C/50% RH prior to measurement, logged and reported automatically.
Is calibration traceability provided with the instrument?
Each unit ships with a factory calibration certificate traceable to CNAS-accredited primary standards (NIM, Beijing), covering voltage output (kV), current measurement (mA), and timing accuracy (ms). Optional annual recalibration service includes uncertainty budgeting per ISO/IEC 17025.
How is data integrity ensured during long-duration withstand tests?
Continuous RAM buffering with automatic failover to non-volatile storage ensures no data loss during power interruption. All acquired points carry microsecond-resolution timestamps synchronized to the host PC’s NTP server.
Does the software support multi-language UI and report localization?
The interface supports English, German, French, Japanese, and Simplified Chinese; report templates are fully editable and exportable in locale-specific formats (e.g., DIN-compliant headers, JIS-regulated units).