PV Laboratory Equipment Solutions

PV Laboratory Equipment Solutions

Changzhou Hope Instrument provides one-stop test solutions dedicated to photovoltaic laboratories. Our offerings cover full-range laboratory scenarios including module certification testing, material R&D verification, reliability testing, failure analysis, fixture tooling and metrological calibration, complying with photovoltaic standards such as IEC61215 and IEC61730.

We supply professional and tailored test-and-measurement equipment for module reliability & certification tests, safety and electrical-performance certification instruments, photovoltaic material and solar-cell R&D test equipment, as well as test fixture calibration and maintenance devices. Our core objective is to cover full-application scenarios spanning photovoltaic material R&D, module certification and production-line maintenance, so as to guarantee the reliability of PV modules throughout their 25-year service life.

PV Module Reliability and Certification Testing Solutions

Diagram Descriptions:

• Environmental Stress Monitoring (TC200):Serving as the “Eyes of the Lab,” it captures circuit failures invisible to the naked eye in real-time while modules undergo hundreds of hours of aging within environmental chambers.
• Accelerated Aging Test (HT1092):Functioning as a “Time Accelerator,” it utilizes high voltage to simulate the power degradation of modules after 25 years of outdoor exposure.
• Insulation Safety Verification (HT1070): Acting as the “Safety Bottom Line,” it simulates extreme humid environments through water immersion to ensure modules remain free from any leakage hazards.
• System Stability Control (HT1035):Serving as the “Accuracy Guardian,” it ensures that all laboratory test data—especially the critical I-V power data—is free from errors caused by tooling wear or degradation.

Hopetech Instrument provides more than just individual instruments; we offer a comprehensive, closed-loop system that guarantees the accuracy of certification data and the long-term reliability of PV modules.

Safety and Electrical Performance Certification Test Instruments

Test Path Stage Descriptions:

1. Component Validation
   • HT9960 is utilized before module assembly or during failure analysis to conduct sophisticated testing on the “Junction Box,” the module’s core component. It evaluates critical parameters such as diode voltage drop and welding resistance to ensure component-level reliability.

2. Structural Security

• HT9931A applies a high current of up to 100A to verify the grounding continuity of module frames and mounting brackets. This ensures the system can effectively dissipate energy during lightning strikes or short-circuit events, meeting mandatory safety requirements.

3. Core Multi-Safety Certification (The Critical Node)

• HT9914 serves as the central pillar of the certification journey. It integrates all four core tests (Hipot, Insulation, Grounding, and Diode characteristics) into a single station. It is the primary “workhorse” for most third-party certification laboratories.

4. Extreme High-Voltage (HV) Stress Testing

• HT9951A/B is specifically designed for breakdown experiments requiring extreme voltages up to 10kV. It is used to evaluate the ultimate dielectric strength and insulation limits of module materials under extreme stress conditions.

5. Environmental & Sealing Verification

• DP3115B / DP3185B are used to verify the airtightness of junction boxes and inverter housings after environmental stress tests (such as water immersion or damp heat). This ensures the equipment maintains its IP67/IP68 protection rating in outdoor environments.
• System-Level Integration & Ancillary Equipment
  • HT9985A/B is employed for the safety verification of ancillary electrical components within the PV system, such as inverters and Power Distribution Units (PDUs), ensuring the entire system operates within safe electrical boundaries.

  This test path establishes a complete safety closed-loop, extending from a single diode to the fully integrated PV system-level integration of-the-entire PV power plant infrastructure of a PV power plant.

  

  Test Category	Application Scenarios	Corresponding Equipment	Core Features
  Safety & Electrical Performance Certification Testing	Performs all-in-one PV module safety testing, fully complying with IEC61215/IEC61730 standards. Suitable for module certification, incoming inspection, and failure analysis.	HT9914 PV Safety Multi-Tester	7-inch touchscreen; 4-in-1 integrated test (AC/DC Hipot, Insulation Resistance, Ground Resistance, Bypass Diode Forward/Reverse characteristics); Kelvin four-wire measurement; standard communication interface.
  	Designed for PV module high-voltage test scenarios. Performs specific tests for AC/DC withstand, insulation, and leakage current; capable of insulation breakdown tests at extreme voltages.	HT9951A/B PV High-Voltage Safety Tester	Max DC 10kV high-voltage output; insulation resistance measurement upper limit 99GΩ; 9-level arc detection; supports RS485 networking.
  	Tests ground loop resistance of module frames, brackets, and inverter housings. Verifies grounding reliability in lightning strike and short-circuit scenarios, meeting safety certification requirements.	HT9931A High-Current Ground Continuity Tester	DC 10/100A continuous adjustable high-current output; ground resistance measurement range 0.1μΩ–600mΩ; equipped with test lead abnormality detection.
  	Junction box selection validation, incoming quality sampling, and post-aging performance testing. Screens for hidden risks like diode thermal failure and poor welding; evaluates long-term reliability.	HT9960 PV Junction Box Multi-Tester	Single connection to complete 5 tests (Bypass diode forward voltage drop VF, reverse leakage current IR, reverse withstand voltage VR, conduction resistance, junction temperature); customizable test parameters.
  	Tests waterproof sealing performance of PV junction boxes, inverters, and combiner box housings to verify IP protection ratings (IP67/IP68).	DP3115B/DP3185B  Airtightness Tester	Differential pressure principle; 0.1Pa resolution; supports positive and negative pressure testing; single/2/4 channel options; built-in IP67/IP68 standard test procedures.
  	Used for safety testing of PV modules, inverters, PDUs, and other PV ancillary electrical equipment, covering safety verification needs for the entire PV system.	HT9985A/B Universal Safety Multi-Tester	Withstand, insulation, and grounding 3-in-1 test; includes dry-test anti-fooling function; four-wire low resistance measurement.