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- Description
- Specifications
- Applications
- Advantages
- FAQ
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Description
The PDM-414H
With 12bit high-speed sampling, advanced digital filtering, and AI-powered intelligent diagnosis, the detector accurately captures weak PD signals, identifies early insulation defects, and locates fault sources in energized equipment. Fully compliant with IEC 60270, IEC 62478, DL/T 417, and GB/T 7354 international and domestic standards, it is the definitive tool for predictive maintenance, routine patrol inspection, and fault diagnosis for power utilities, electrical equipment manufacturers, industrial maintenance teams, and third-party testing service providers worldwide.
Specifications
| Parameter Category | Specification |
| Host Core Parameters | |
| Model | PDM-414H |
| Acquisition Channels | 4 synchronous channels (TEV, Ultrasonic, UHF, HFCT) |
| Sampling Accuracy | 12bit |
| Synchronization Modes | Internal synchronization, external synchronization, optical synchronization |
| Display | 5-inch high-brightness color touchscreen |
| Data Storage | 16GB built-in memory, SD card expandable up to 64GB |
| Data Interface | USB Type-C, Bluetooth 5.0 |
| Battery | 10000mAh rechargeable lithium battery |
| Continuous Working Time | ≥12 hours on a single full charge |
| Protection Grade | IP54 dust and water resistant |
| Operating Environment | -20℃ ~ +50℃; ≤95% RH (non-condensing) |
| Net Weight | ~1.2kg (main unit) |
| TEV Detection Channel | |
| Sensing Principle | Capacitive coupling |
| Frequency Range | 10MHz ~ 100MHz |
| Measurement Range | 0 ~ 60dB |
| Measurement Accuracy | ±1dB |
| Resolution | 1dB |
| Ultrasonic Detection Channel | |
| Sensing Principle | Air-coupled piezoelectric sensor |
| Frequency Range | 20kHz ~ 300kHz |
| Measurement Range | -10dBuV ~ 70dBuV |
| Sensitivity | -68dB (at 40kHz, 0dB=1V/μbar rms SPL) |
| Additional Function | Headphone audio monitoring, time-difference fault localization |
| UHF Detection Channel | |
| Frequency Range | 300MHz ~ 3GHz |
| Measurement Range | -80dBm ~ 0dBm |
| Impedance | 50Ω |
| HFCT Detection Channel | |
| Frequency Bandwidth | 50kHz ~ 30MHz |
| Detection Sensitivity | ≥10pC |
| Installation Method | Clip-on non-invasive |
| Output Impedance | 50Ω |
| Compliance Standards | IEC 60270, IEC 62478, DL/T 417, GB/T 7354, CE |
Applications
Core Test Objects
· Medium & High Voltage Switchgear: Routine PD inspection of 10kV-35kV MV switchgear, ring main units (RMU), and 110kV+ HV switchgear
· GIS & GIL: Partial discharge detection and free particle localization for gas-insulated switchgear and transmission lines
· Power Transformers & Instrument Transformers: PD inspection of oil-immersed and dry-type transformers, current transformers (CT), and voltage transformers (PT)
· HV Power Cables & Accessories: PD detection and fault localization for XLPE power cables, cable joints, and terminations
· Rotating Machinery: Stator winding PD inspection for HV generators and motors in power plants and industrial facilities
· Surge Arresters, Bushings & Insulators: PD detection and insulation condition assessment for HV insulation components
Industry-Specific Usage
· Electric Power Utilities: Substation routine patrol inspection, grid equipment preventive maintenance, and emergency fault diagnosis
· Electrical Equipment Manufacturing: Factory outgoing inspection, type testing, and quality control for switchgear, transformers, and GIS
· Industrial & Petrochemical: HV electrical system maintenance for high-reliability production facilities and hazardous area electrical equipment
· Rail Transit & Urban Infrastructure: Traction power supply system PD inspection for metro, high-speed railway, and urban rail transit
· New Energy & Renewable Projects: HV equipment maintenance for wind farms, solar photovoltaic plants, and energy storage systems
· Third-Party Testing & Certification: Compliance testing, performance verification, and arbitration testing for electrical engineering projects
Advantages
All-in-One Multi-Technology Integrated Solution
Unlike single-function PD testers, the GDPD-414H integrates four mainstream PD detection technologies into one handheld unit, replacing 4 separate test instruments. It covers all inspection scenarios for MV/HV electrical equipment, greatly reducing user equipment investment and field operation workload.
Strict Global Standard Compliance
Fully designed and calibrated in accordance with IEC 60270 (High-voltage test techniques – Partial discharge measurements), IEC 62478, and GB/T 7354 international standards. Test data is globally recognized, meeting the requirements of power grid inspection, equipment factory certification, and international project handover.
Non-Contact Live-Line Non-Destructive Testing
All detection methods adopt non-invasive, non-destructive testing technology, no need for equipment power outage, no disassembly of equipment body, no impact on the normal operation of HV electrical equipment. It enables full-time live-line patrol inspection, completing insulation defect screening without affecting the normal power supply of the grid.
Ultra-High Sensitivity & Intelligent Fault Diagnosis
1pC ultra-high detection sensitivity and advanced digital filtering technology accurately capture weak PD signals from early insulation defects. AI-powered defect type recognition and PRPD pattern analysis enable even non-professional operators to quickly judge equipment insulation status, greatly reducing the technical threshold for on-site inspection.
Field-Proven Portability & Long Endurance
Ergonomic handheld design, 1.2kg ultra-light weight, and 12+ hours of continuous battery life perfectly adapt to all-day on-site patrol inspection in remote substations and industrial sites. IP54 rugged housing ensures stable operation in harsh outdoor environments with high dust, high humidity, and strong electromagnetic interference.
Superior Total Cost of Ownership
Integrated design eliminates the need to purchase multiple separate PD testers, reducing upfront capital expenditure. Long-life industrial-grade sensors and components ensure low failure rate and minimal maintenance costs, while its ability to detect early insulation defects helps clients avoid costly unplanned downtime and equipment failures.
FAQ
Q: What detection technologies does the GDPD-414H integrate?
A: The PDM-414H integrates four mainstream partial discharge detection technologies: Transient Earth Voltage (TEV), Ultrasonic (AE), Ultra-High Frequency (UHF), and High-Frequency Current Transformer (HFCT), covering all PD inspection scenarios for MV/HV electrical equipment.
Q: What international standards does this detector comply with?
A: It is fully designed, calibrated, and tested in accordance with IEC 60270 (High-voltage test techniques – Partial discharge measurements), IEC 62478, and GB/T 7354 international standards, with globally recognized test data.
Q: Can it perform testing on energized live equipment?
A: Yes. All detection methods adopt non-invasive, non-destructive testing technology, no need for equipment power outage, no impact on the normal operation of HV electrical equipment. It enables safe live-line patrol inspection and fault diagnosis.
Q: What types of HV equipment can this detector test?
A: It is suitable for all medium and high voltage electrical equipment, including MV/HV switchgear, GIS, power transformers, instrument transformers, HV power cables and accessories, generators, HV motors, surge arresters, and bushings.
Q: Can it locate the partial discharge fault source?
A: Yes. It supports ultrasonic time-difference localization function, which can accurately pinpoint the PD source location in switchgear, GIS, and transformers. The PRPD pattern analysis also helps identify the type and severity of insulation defects.
Q: How is test data stored and exported?
A: The detector has 16GB built-in memory, saving up to 100,000 groups of test records with full traceability. It supports USB and Bluetooth data transmission, and can export test reports in Excel/PDF format for compliance documentation and project handover.
Q: What is the warranty and after-sales support?
A: We provide a standard 1-year whole-machine warranty, lifetime technical support, and professional operation training services through our global service network. Extended warranty plans are available upon request.
