CHT9951A/CHT9951B Solar Panel Hipot and Insulation Resistance Tester
Professional PV Module Withstand Voltage and Insulation Testing Solution
The CHT9951A/CHT9951B is a professional-grade hipot and insulation resistance tester specifically designed for finished solar PV module safety testing. This instrument is also suitable for wet leakage current testing of solar modules, making it an essential piece of equipment in any complete solar panel production line.
With a maximum DC output of 10kV and an insulation resistance measurement range up to 99GΩ, the CHT9951A/CHT9951B delivers highly accurate and reliable test results. The instrument is fully compliant with international photovoltaic standards IEC61215 and IEC61730, ensuring that your solar panels meet global safety and performance certification requirements.
The tester features a clear 95mm x 20mm monochrome LCD display that simultaneously shows test voltage, leakage current, and test time, allowing operators to monitor all critical parameters in real time. With its standard RS232 serial interface and optional RS485 communication, the instrument integrates seamlessly into automated solar panel production lines for efficient data transmission and collection.
Whether you are building a new solar module manufacturing facility or upgrading your existing quality inspection line, the CHT9951A/CHT9951B provides the precision, safety, and reliability you need for comprehensive PV module electrical safety testing.
Technical Specifications
CHT9951A vs CHT9951B Comparison Table
| Parameter | CHT9951A | CHT9951B |
|---|
| Display | 95mm x 20mm Monochrome LCD | 95mm x 20mm Monochrome LCD |
| Test Parameters | Withstand Voltage / Leakage Current / Insulation Resistance | Withstand Voltage / Leakage Current / Insulation Resistance |
| Voltage Resolution | 1V | 1V |
| Voltage Accuracy | 3% | 3% |
| Frequency | 50Hz / 60Hz | 50Hz / 60Hz |
| AC/DC Hipot Test | Supported | Supported |
| AC Output | Supported | Supported |
| AC Leakage Current | 10mA | 10mA |
| DC Output | 0.1kV - 10kV | 0.1kV - 10kV |
| DC Leakage Current | 5mA | 5mA |
| Current Resolution | 1μA | 1μA |
| Current Accuracy | ±(3% + 2 counts) | ±(3% + 2 counts) |
| Voltage Ramp Time | 0.1s - 999.9s | 0.1s - 999.9s |
| Test Time | 0.1s - 999.9s | 0.1s - 999.9s |
| Arc Detection | 1 - 9 Levels | 1 - 9 Levels |
| Insulation Resistance Test | Supported | Supported |
| Insulation Resistance Range | 100kΩ - 99GΩ | 100kΩ - 99GΩ |
| Insulation Resistance Accuracy | 5% (100kΩ-10GΩ); 20% (10GΩ-99GΩ) | 5% (100kΩ-10GΩ); 20% (10GΩ-99GΩ) |
| Voltage Output (Insulation Test) | 0.1kV - 2.0kV | 0.5kV - 2.0kV |
| Memory Groups | 6 Groups | 6 Groups |
| Communication Interface | Handler, RS485, RS232 (Optional) | Handler, RS485, RS232 (Optional) |
| Power Supply | 198VAC - 240VAC, 47Hz - 63Hz, Rated Power: 100VA | 198VAC - 240VAC, 47Hz - 63Hz, Rated Power: 100VA |
| Dimensions | 374mm x 280mm x 99mm | 374mm x 280mm x 99mm |
| Weight | 7.5kg | 7.5kg |
| Accessories | 9950, 9900, Power Cable | 9950, 9900, Power Cable |
Technical Advantages
Why Choose the CHT9951A/CHT9951B for Solar Panel Testing
High Voltage DC Output up to 10kV: Provides sufficient test voltage for comprehensive dielectric strength testing of all types of solar PV modules, including PERC, TOPCon, HJT, IBC, ABC, HPBC, shingled, and thin-film modules.
Wide Insulation Resistance Range up to 99GΩ: Covers the full measurement range required by international standards, ensuring accurate insulation quality verification for solar panels of all sizes and configurations.
IEC61215 and IEC61730 Compliance: Fully meets the testing requirements of international photovoltaic safety and performance standards, helping manufacturers achieve global certifications for their solar modules.
Real-Time Multi-Parameter Display: The LCD screen simultaneously shows test voltage, leakage current, and test time, enabling operators to monitor all critical data without switching between screens.
Advanced Arc Detection Function: Multi-level arc detection (1-9 levels) with ARC alarm capability identifies dangerous arc discharges during testing, protecting both the equipment and the solar modules under test.
Flexible Voltage Ramp and Timing Control: Fully adjustable voltage ramp time, test time, and test wait time allow operators to customize test profiles according to specific product requirements and testing standards.
Multiple Trigger Modes: Supports various trigger modes for flexible integration into manual testing stations or fully automated solar panel production lines.
Wet Leakage Current Testing Capability: Beyond standard hipot and insulation resistance testing, the instrument supports wet leakage current testing as required for comprehensive PV module safety qualification.
Rich Communication Interfaces: Standard Handler interface with optional RS232 and RS485 ports enables seamless integration with data acquisition systems, PLCs, and production line automation controllers.
6-Group Memory Storage: Store up to 6 different test configurations for rapid switching between product models, reducing setup time and improving production efficiency.
USB Firmware Upgrade: Easily update the instrument firmware via USB flash drive, ensuring long-term compatibility with evolving test standards and requirements.
Audio-Visual Alarm System: Clear sound and light alarms provide immediate pass/fail indication, reducing operator errors and improving testing throughput.
Product Applications
Solar Panel Production Line Quality Inspection
The CHT9951A/CHT9951B hipot and insulation resistance tester is an essential instrument in modern solar panel manufacturing facilities. It is widely used in the following scenarios:
Solar Module End-of-Line TestingAs a critical station in the solar panel production line, the hipot tester verifies the electrical safety of every finished module before packaging and shipment. It ensures that the insulation between live conductors and the frame or exposed surfaces meets international safety standards.
Wet Leakage Current TestingThe instrument is used for wet leakage current tests as specified in IEC61215 and IEC61730. This test simulates real-world wet conditions to verify that solar modules maintain adequate electrical insulation even when exposed to moisture, rain, or condensation.
Incoming Quality ControlSolar panel distributors and EPC companies use the CHT9951A/CHT9951B to perform incoming inspection testing on received modules, verifying electrical safety before installation in solar power plants.
Research and Development LaboratoriesPV research institutions and solar module development teams use this tester to evaluate new module designs, encapsulation materials, and manufacturing processes for electrical safety compliance.
Compatible Module TypesThe tester supports all mainstream solar module technologies including:
Monocrystalline and polycrystalline silicon modules (G1, M6, M10, M12)
PERC, TOPCon, IBC, ABC, HPBC cell-based modules
MBB (Multi-Busbar) solar panels
Shingled solar modules
Flexible solar panels
Thin-film modules (CIGS, CdTe)
Bifacial solar modules
Contact Us to Purchase
Get Your CHT9951A/CHT9951B Hipot Insulation Tester from Ooitech
Ooitech is a leading provider of complete solar panel production line equipment, covering everything from cell laser cutting, tabber stringing, layup, bussing, EL testing, lamination, framing, to final IV testing and hipot testing. We design, deliver, install, and provide training and after-sales service for solar module production lines ranging from 5MW to 1GW capacity.
Whether you need a single CHT9951A/CHT9951B hipot tester or a complete turnkey solar panel manufacturing solution, our experienced team is ready to assist you.
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