Aerospace ZJC-50kV Dielectric Strength Tester
| Brand | Aerospace |
|---|---|
| Origin | Beijing, China |
| Model | ZJC-50kV |
| Dielectric Breakdown Voltage Range | 0–50 kV |
| Input Power | AC 220 V ±10%, 50 Hz |
| Max Output Power | 3 kVA |
| Rise Rate Adjustment | 0.1–5 kV/s (adjustable) |
| Leakage Current Alarm Threshold | Adjustable (0.1–20 mA) |
| Voltage Accuracy | ±1.5% of reading (calibrated annually) |
| Operating Temperature | 0–40 °C |
| Relative Humidity | ≤80% RH (non-condensing) |
| Grounding Resistance Requirement | ≤4 Ω |
Overview
The Aerospace ZJC-50kV Dielectric Strength Tester is a precision high-voltage testing system engineered for the quantitative determination of dielectric breakdown voltage and electrical insulation integrity in solid and semi-solid insulating materials. Based on standardized step-up or ramp-up voltage application under controlled electrostatic conditions, the instrument applies a continuously increasing AC or DC voltage across a defined electrode configuration until electrical breakdown occurs—marked by a sudden, irreversible conduction path through the test specimen. This measurement directly reflects the material’s ability to withstand electric stress without catastrophic failure, making it essential for quality assurance in polymer engineering, cable manufacturing, transformer oil evaluation, printed circuit board (PCB) substrate validation, and aerospace-grade composite qualification.
Key Features
- Programmable voltage ramp rate (0.1–5 kV/s), enabling compliance with ASTM D149, IEC 60243-1, GB/T 1408.1, and ISO 60243 standards for dielectric strength testing.
- Dual-mode operation: supports both short-time (ramp-to-failure) and stepwise (incremental hold-and-test) protocols to accommodate diverse material response characteristics.
- Integrated real-time leakage current monitoring with user-defined alarm thresholds (0.1–20 mA), automatically halting voltage rise upon threshold exceedance to prevent thermal runaway.
- High-reliability solid-state voltage regulation and digital feedback control ensure stable output waveform fidelity and repeatability across repeated tests.
- Comprehensive safety architecture including automatic discharge circuitry (residual voltage <100 V within 5 s post-test), emergency stop button, interlocked test chamber door, and audible/visual fault indicators.
- Front-panel LCD with intuitive menu navigation and dual-language interface (English/Chinese), supporting parameter recall, test logging, and pass/fail status display.
Sample Compatibility & Compliance
The ZJC-50kV accommodates standard electrode geometries per IEC 60243: flat brass disk electrodes (25 mm diameter), spherical electrodes (12.5 mm radius), or needle-plane configurations for localized stress analysis. Specimen thickness range: 0.1–10 mm (with optional spacers). Compatible with rigid plastics (e.g., polyethylene, epoxy resins), elastomers (silicone rubber, EPDM), laminates (FR-4, polyimide films), ceramics, and dry powders compressed into pellets. Not intended for liquid dielectrics, gaseous media, or uncured resins due to arc containment and contamination risks. All operational procedures align with OSHA 1910.303 (electrical safety), NFPA 70E (arc flash hazard mitigation), and ISO/IEC 17025 requirements for accredited testing laboratories.
Software & Data Management
While the base unit operates autonomously via embedded firmware, optional PC-based software (ZJC-Control Suite v3.2) enables advanced test sequencing, waveform capture (voltage vs. time + leakage current vs. time), statistical reporting (mean, SD, Weibull distribution fitting), and audit-trail generation compliant with FDA 21 CFR Part 11 principles. Data export formats include CSV, PDF, and XML; calibration logs, operator ID, timestamp, environmental metadata (temperature/humidity), and test parameters are embedded in each record. Software supports multi-user role-based access control and electronic signature workflows for GLP/GMP environments.
Applications
- Quality control of insulating films used in capacitors and flexible electronics
- Evaluation of aging effects on polymer dielectrics after thermal, UV, or humidity exposure
- Pre-qualification of encapsulation materials for high-voltage power modules
- Verification of coating integrity on magnet wire and motor windings
- Research-grade comparative studies of nanocomposite dielectric performance (e.g., Al₂O₃-, SiO₂-, or BN-filled polymers)
- Failure analysis of insulation breakdown in field-deployed components under accelerated life testing protocols
FAQ
What standards does the ZJC-50kV comply with?
It supports test methods defined in ASTM D149, IEC 60243-1, GB/T 1408.1, and ISO 60243. Calibration traceability follows ISO/IEC 17025 guidelines via accredited third-party labs.
Can this instrument test liquids or gases?
No. The ZJC-50kV is designed exclusively for solid and compacted particulate specimens. Liquid or gaseous dielectrics require sealed, pressure-rated test cells not provided with this system.
How often must the instrument be calibrated?
Annual calibration is recommended. Voltage output and leakage current measurement channels must be verified against NIST-traceable standards, with documented uncertainty budgets.
Is remote operation supported?
Yes—via optional Ethernet or RS-232 interface using Modbus RTU protocol. Integration with SCADA or MES platforms is possible with custom driver development.
What safety certifications does the unit carry?
The system conforms to CE marking requirements (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU), and meets EN 61010-1:2010 for laboratory electrical equipment safety.
