EN
HV-OWS-63 Cable Oscillating Wave Partial Discharge Detection System
HV-OWS-63 Digital Intelligent Cable Oscillating Wave Partial Discharge Detection System with Damped AC (DAC) Technology, Integrated DC Power Supply, Resonant Reactor, High-Speed PD Acquisition Unit, ±0.1m Location Accuracy, for 6kV~35kV XLPE Cable Off-Line Testing.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The HV-OWS-63 is a professional-grade, field-optimized non-destructive partial discharge detection and localization systemexclusively designed for 6kV~35kV XLPE power cables. It fully complies with DL/T 1575-2016, DL/T 1576-2016 and IEC 60270:2015 standards, adopting advanced Damped AC (DAC) oscillating wave technology that simulates power frequency voltage excitation without causing any irreversible damage to cable insulation.
The system features an innovative all-in-one integrated design that combines a DC high-voltage power supply, PD-free resonant reactor, high-speed PD acquisition unit and intelligent control system into a single wheeled chassis. Its industry-leading 14bit/125MS/s high-speed synchronous sampling ensures accurate capture of weak PD signals, while the time-domain reflectometry (TDR) technology provides ±0.1m ultra-high positioning accuracy for PD sources. The built-in expert diagnosis system automatically identifies defect types (water trees, voids, joint defects, poor installation) and assesses severity levels. With one-click fully automatic operation and standardized report generation, it greatly improves test efficiency and reduces operator skill requirements. The lightweight portable design with a total weight of less than 80kg and 220V single-phase input makes it ideal for on-site testing in various environments. Ideal for new cable acceptance tests, in-service cable preventive maintenance, fault cable diagnosis and construction quality inspection.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | DL/T 1575-2016, DL/T 1576-2016, IEC 60270:2015, GB/T 7354-2018 |
| Test Technology | Damped AC (DAC) oscillating wave |
| Test Modes | Withstand voltage test, Partial discharge detection and localization |
| Operation Modes | Fully automatic mode, Manual debugging mode |
| Oscillating Wave Power Supply Parameters | |
| DC Charging Voltage | 0 ~ 63kV (continuous adjustable) |
| Oscillation Voltage Peak | 0 ~ 63kV |
| Oscillation Frequency | 20Hz ~ 850Hz (auto-adaptive to cable capacitance) |
| Load Capacitance Range | 0.05μF ~ 6μF |
| Maximum Charging Current | 13.5mA |
| Voltage Regulation Accuracy | ±1% |
| PD Detection Parameters | |
| Sampling Rate | 125MS/s per channel |
| Resolution | 14-bit |
| PD Detection Range | 10pC ~ 200nC |
| Measurement Accuracy | ±0.1pC |
| Detection Bandwidth | 100kHz ~ 50MHz (auto or manual adjustable) |
| Location Parameters | |
| Location Technology | Time-domain reflectometry (TDR) |
| Location Accuracy | ±0.1m (absolute error) |
| Location Error | ≤1% × cable length (relative error) |
| Wave Speed Range | 50m/μs ~ 300m/μs (adjustable) |
| Automatic Joint Recognition | Yes |
| Multi-Defect Detection | Yes (unlimited number) |
| Control & Data Management | |
| Display | 12.1-inch industrial touch screen |
| Data Storage | 512GB internal storage |
| Report Generation | Automatic Word/PDF report generation (DL/T 1576 compliant) |
| Communication Interfaces | USB 3.0, LAN |
| Expert Diagnosis System | Yes (defect type identification, severity rating) |
| Safety Protection | |
| Overvoltage Protection | Yes (adjustable threshold) |
| Overcurrent Protection | Yes (adjustable threshold) |
| Short Circuit Protection | Yes |
| Automatic Discharge Protection | Yes |
| Emergency Stop Button | Yes |
| High-Voltage Warning Light | Yes |
| General Parameters | |
| Power Supply | AC 220V±10%, 50Hz single-phase |
| Power Consumption | <3kW |
| Total Weight | <80kg (complete set) |
| Dimensions | 650×550×1200mm (L×W×H) |
| Housing | Cold-rolled steel cabinet with electrostatic spraying |
| Wheeled Design | Yes (heavy-duty universal wheels with brakes) |
| Operating Temperature | -10℃ ~ +50℃ |
| Operating Humidity | ≤90% RH (non-condensing) |
| Altitude | ≤2000m |
Applications
Core Test Objects
- XLPE power cables: 6kV, 10kV, 20kV, 35kV cross-linked polyethylene power cables
- Cable accessories: Cable terminals, intermediate joints, branch joints
- Other cables: PVC insulated cables, rubber insulated cables (within voltage range)
Typical Usage Scenarios
- Power companies: New cable acceptance tests, in-service cable preventive maintenance, fault cable rapid diagnosis
- Power engineering companies: Cable construction quality inspection, completion acceptance tests
- Cable manufacturers: Factory quality control, type tests
- Third-party testing institutions: Cable performance testing, quality arbitration
- Industrial enterprises: Internal power cable inspection and maintenance
Advantages
Compliance with International Power Standards
Fully meets DL/T 1575-2016 and DL/T 1576-2016 Chinese power industry standards and IEC 60270 international standard → test results are recognized by power systems worldwide
Industry-Leading Non-Destructive Testing Technology
DAC oscillating wave technology simulates power frequency voltage without damaging cable insulation → extends cable service life compared to traditional DC withstand tests
Ultra-High Positioning Accuracy
±0.1m absolute positioning accuracy and ≤1% relative error → accurately locates defects to within 1 meter, greatly reducing maintenance time and cost
One-Click Fully Automatic Operation
No complex parameter settings, completes the entire test process with one click → reduces operator skill requirements, improves test efficiency by 300%
Integrated Portable Design
All components integrated into one wheeled chassis, total weight <80kg, 220V single-phase input → easy to transport and operate in various on-site environments
Built-In Expert Diagnosis System
Automatically identifies defect types and assesses severity → provides scientific maintenance recommendations, eliminates subjective judgment errors
Standardized Automatic Report Generation
Generates DL/T-compliant test reports with one click → eliminates manual report writing, ensures data consistency and traceability
High Cost-Effectiveness
Provides complete cable PD detection and localization capability at 60% of the price of imported systems → the most cost-effective solution for medium-voltage cable testing
FAQ
Q: What is the difference between HV-OWS-63 and traditional DC withstand voltage tests?
A:
- Traditional DC withstand tests: Apply high DC voltage to the cable, which can cause space charge accumulation and accelerate insulation aging, especially for water tree degraded cables. They can only verify insulation breakdown strength and cannot detect partial discharge defects.
- HV-OWS-63 (DAC technology): Generates oscillating AC voltage equivalent to power frequency, which does not cause space charge accumulation or insulation damage. It can simultaneously complete withstand voltage verification and partial discharge detection, accurately locating early insulation defects.
Q: What is the maximum cable length that HV-OWS-63 can test?
A: HV-OWS-63 supports a load capacitance range of 0.05μF ~ 6μF. For common 10kV XLPE cables with a capacitance of approximately 0.15μF/km, it can test cables up to 40km in length. For 35kV cables with a capacitance of approximately 0.2μF/km, it can test cables up to 30km in length.
Q: How accurate is the defect location?
A: HV-OWS-63 adopts advanced time-domain reflectometry (TDR) technology with ±0.1m absolute positioning accuracy and ≤1% relative error. For a 1km cable, the maximum location error is only 10 meters, which can accurately locate defects to a specific cable joint or segment.
Q: How long does a typical test take?
A: A complete test cycle for a single-phase cable takes approximately 15~30 minutes, including wiring, parameter configuration, testing and report generation. For three-phase cables, the total test time is approximately 45~90 minutes, which is much faster than traditional test methods.
