EN
GDPV-III Portable PV IV Curve Tester
GDPV-III Digital Intelligent Portable Photovoltaic String Tester with 15-1500V/0.5-20A Range, 30kW Max Power, 100m Wireless Probe, IV Curve Tracer, for Large Distributed PV Plant On-Site Performance Test & Fault Diagnosis.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
GDPV-III is a professional mid-to-high-end portable photovoltaic (PV) string tester designed for on-site performance testing, acceptance inspection and fault diagnosis of PV modules and strings in large distributed PV power plants, medium-sized ground-mounted PV plants and industrial PV installations. It strictly complies with IEC 62446-1:2016, GB/T 19939-2005 and GB/T 18210-2000 standards, adopting innovative 100m wireless split design and advanced high-speed digital signal processing technology that enables safe and convenient testing of high-voltage PV strings from a distance.
The instrument features 15V~1500V ultra-wide voltage range and 0.5A~20A ultra-wide current range, covering all mainstream 1500V PV modules and strings up to 30kW. Its built-in 150+ mainstream PV module correction model database automatically selects the appropriate temperature and irradiance coefficients for STC correction, ensuring accurate and reliable test results. The continuous automatic test function allows periodic testing of PV arrays according to preset time intervals, ideal for long-term performance monitoring.
Specifications
| Parameter | Specification |
|---|---|
| Compliance Standards | IEC 62446-1:2016, GB/T 19939-2005, GB/T 18210-2000, T/CSEE 0160-2020 |
| Test Principle | Capacitive/resistive dual load IV curve tracing |
| Measurement Method | 4-wire Kelvin measurement |
| Communication Mode | 100m wireless (host-probe) |
| Voltage Measurement Range | 15V ~ 1500V DC |
| Voltage Resolution | 0.1V |
| Voltage Accuracy | ±0.5% reading ± 0.2V |
| Current Measurement Range | 0.5A ~ 20A DC |
| Current Resolution | 0.001A |
| Current Accuracy | ±0.5% reading ± 0.02A |
| Power Measurement Range | 10W ~ 30000W |
| Power Accuracy | ±0.5% reading ± 3W |
| Irradiance Measurement Range | 0 ~ 1800W/m² |
| Irradiance Accuracy | ±3.0% reading |
| Temperature Measurement Range | -20℃ ~ +100℃ |
| Temperature Accuracy | ±1℃ |
| IV Curve Data Points | 1536 points per curve |
| IV Curve Tracing Time | ≤15 seconds per string |
| STC Conversion Accuracy | ±5% |
| Built-in Module Database | 150+ mainstream PV module models, user-definable |
| Test Parameters | Voc, Isc, Pmax, Vmp, Imp, FF, η, Rs, bypass diode forward voltage |
| Continuous Test Interval | 1min ~ 24h (adjustable) |
| Fault Diagnosis | Open circuit, short circuit, partial shading, module mismatch, diode failure |
| Display | 6.5-inch 640×480 color LCD touch screen |
| Operating System | WINCE |
| Language Support | Chinese / English bilingual |
| Data Storage | 1500 groups (with time stamp, parameters and IV curves) |
| Communication Interfaces | USB 2.0, RS232 |
| Power Supply | Built-in 14.8V/4400mAh replaceable lithium battery; AC 220V charging |
| Battery Life | ≥8 hours continuous working time |
| Charging Time | ≤4 hours |
| Protection Functions | Over-voltage, over-current, short-circuit, reverse polarity, over-temperature |
| Operating Temperature | -10℃ ~ +50℃ |
| Humidity | 5% ~ 95% RH (non-condensing) |
| Dimensions (L×W×H) | 360×280×180mm |
| Weight | ~5kg (including battery) |
| Enclosure | Rugged aluminum alloy, IP40 |
Applications
Core Test Objects
- PV modules: Monocrystalline, polycrystalline, thin-film, bifacial PV modules (10W~350W)
- PV strings: Series-connected PV strings up to 1500V and 20A
- PV systems: Large distributed PV power plants, medium-sized ground-mounted PV plants, industrial PV installations
Typical Usage Scenarios
- PV EPC companies: PV system acceptance inspection, commissioning test and quality verification
- PV operation and maintenance companies: Routine patrol inspection, fault diagnosis and performance evaluation of large distributed PV plants
- PV module manufacturers: Factory quality control, batch inspection and on-site after-sales service
- Third-party testing institutions: PV system certification testing, safety assessment and energy efficiency evaluation
- Research institutes: PV module performance research and long-term field test
Advantages
Compliance with Latest International Standards
Fully meets IEC 62446-1:2016, GB/T 19939-2005, GB/T 18210-2000 → test results are globally recognized
Industry-Leading 100m Wireless Split Design
Operators test high-voltage PV strings from a safe distance → eliminates electric shock hazards and improves test safety
1500V/30kW High-Power Test
Covers all mainstream 1500V PV systems, one instrument tests both single modules and high-power strings → high cost-performance ratio
Built-in 150+ Module Correction Database
Automatically selects the appropriate correction coefficients, no manual parameter input required → improves test accuracy and efficiency
Continuous Automatic Test Function
Supports periodic testing according to preset time intervals → ideal for long-term performance monitoring of PV arrays
FAQ
Q: Can GDPV-III test bifacial PV modules?
A: Yes. GDPV-III can test both monofacial and bifacial PV modules. For bifacial modules, it is recommended to measure the irradiance on both front and back surfaces and input the albedo value for more accurate STC correction.
Q: Can GDPV-III test PV strings without disconnecting them from the inverter?
A: No. For safety reasons, PV strings must be disconnected from the inverter and other electrical equipment before testing. The instrument is equipped with comprehensive protection functions including reverse polarity protection and over-voltage protection to prevent damage caused by incorrect connection.
