GuanCe Water Diffusion Test System GCSKS-50
| Brand | GuanCe Instruments |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | GCSKS-50 |
| Instrument Type | Electronic Universal Testing Machine |
| Standards Compliance | GB/T 19519–2014, GB/T 22079–2008, GB/T 20142–2006 |
| Test Duration | 100 h ± 0.5 h (boiling phase) |
| AC Withstand Voltage | 50 kV / 0.1 A |
| Leakage Current Measurement Range | 40–2000 µA, Class 1 accuracy |
| Boiling Vessel Capacity | 5000 mL spherical reactor |
| Condenser | 2 ×蛇形冷凝管 (19# / 400 mm) |
| Cooling System | CW-3000 chiller |
| Control Interface | 7-inch integrated withstand voltage controller |
| Power Supply | 220 V AC |
Overview
The GuanCe Water Diffusion Test System GCSKS-50 is a purpose-built, standards-compliant test platform engineered for the evaluation of moisture ingress resistance in composite insulator core rods used in high-voltage AC transmission and distribution systems. It implements a two-stage sequential test protocol defined in GB/T 19519–2014, GB/T 22079–2008, and GB/T 20142–2006: first, a precisely controlled 100-hour boiling immersion under reflux conditions to accelerate water penetration along the fiber–resin interface; second, an AC high-potential withstand test at 50 kV to assess dielectric integrity and surface tracking behavior under operational stress. The system integrates thermal, electrical, and metrological subsystems into a single coordinated architecture—enabling reproducible assessment of hydrophobicity degradation, interfacial delamination risk, and long-term insulation reliability in polymer-housed suspension and post-type insulators.
Key Features
- Reflexive boiling module featuring a 5000 mL spherical glass reactor with 24/4 standard taper four-neck lid, dual 19# × 400 mm coiled condensers, and CW-3000 recirculating chiller for stable thermal management and minimal evaporative loss.
- Integrated 50 kV / 0.1 A AC high-voltage test source with built-in silicon rectifier stack—switchable between AC and DC output via shorting rod insertion—ensuring compliance with both AC flashover and DC leakage current measurement requirements.
- Dual-channel precision monitoring: real-time leakage current acquisition (40–2000 µA, Class 1 accuracy) using a calibrated 2 mA microammeter, synchronized with digital voltage readout and programmable timer on the 7-inch HMI-based control unit.
- Mechanically robust test frame with adjustable electrode assembly—threaded electrodes mounted on fixed base and motorized vertical translation rod—allowing precise axial alignment and repeatable contact pressure across diverse core rod geometries (Ø12–Ø32 mm).
- Modular control cabinet (1250 × 900 × 750 mm) housing auto-transformer, overcurrent relay, thermal cutoff, cooling circulation pump, and safety interlock circuitry compliant with IEC 61010-1:2012 for laboratory electrical equipment.
Sample Compatibility & Compliance
The GCSKS-50 accommodates cylindrical composite core rods up to 600 mm in length and 32 mm in diameter, including E-glass/epoxy, S-glass/vinyl ester, and hybrid fiber-reinforced polymer (FRP) specimens conforming to IEC 62217, IEEE Std 1313.2, and China’s State Grid “Power Grid Material Testing Guidelines (2017 Edition), Chapter 26.” All electrical and thermal subassemblies meet GB/T 16927.1–2011 (high-voltage test techniques) and GB/T 5169.11–2017 (electrical safety). The system supports audit-ready documentation generation for GLP/GMP-aligned laboratories, with timestamped test logs traceable to internal RTC and calibrated transducers.
Software & Data Management
The embedded 7-inch industrial HMI controller runs deterministic real-time firmware supporting manual and automated test sequences. Each test cycle records voltage, leakage current, elapsed time, and thermal setpoint at 1-second intervals. Data exports in CSV format via USB port for post-processing in MATLAB, Python (pandas), or LabVIEW. Optional Ethernet interface enables integration with LIMS platforms supporting ASTM E1578–22 metadata tagging and FDA 21 CFR Part 11-compliant electronic signatures when paired with external identity verification modules.
Applications
- Qualification testing of composite insulator core rods per GB/T 19519–2014 Clause 9.4 (water diffusion test) and IEC 61109 Annex C.
- R&D validation of new resin formulations, fiber sizing agents, and interfacial coupling treatments under accelerated aging protocols.
- Third-party certification testing for manufacturers seeking CCC, CQC, or CESI accreditation for 110 kV–500 kV transmission hardware.
- Root cause analysis of field failures involving brittle fracture, tracking, or dry-band arcing linked to moisture-assisted degradation mechanisms.
- Interlaboratory comparison studies organized under CNAS ILAC-MRA frameworks for metrological equivalence assessment.
FAQ
What standards does the GCSKS-50 explicitly support?
GB/T 19519–2014, GB/T 22079–2008, GB/T 20142–2006, and the State Grid “Power Grid Material Testing Guidelines (2017 Edition), Chapter 26.”
Can the system perform DC withstand testing?
Yes—the integrated transformer includes a switchable silicon rectifier stack; inserting the shorting rod bypasses the rectifier to deliver pure AC, while removing it enables full-wave DC output.
Is calibration documentation provided with shipment?
Each unit ships with factory calibration certificates for the microammeter (traceable to NIM, China), temperature sensor (±0.3 °C), and HV divider (±1.5% at 50 kV), valid for 12 months.
What safety interlocks are implemented?
Door-mounted limit switches disable HV output when the test chamber is open; ground-fault detection interrupts power within 20 ms if leakage exceeds 5 mA; overtemperature cut-off halts heating at 105 °C.
Does the system support remote operation or network monitoring?
Standard configuration includes local HMI control only; optional RS-485 Modbus RTU or Ethernet TCP/IP modules enable SCADA integration and remote parameter adjustment under secure VLAN segmentation.
