The intelligent solar photovoltaic junction box comprehensive measuring instrument is a specialized testing device developed for the electrical characteristic testing of photovoltaic junction boxes and their associated components. It can test parameters such as voltage drop, leakage current, temperature drift, and conduction DC resistance of junction boxes and their components, meeting the testing requirements for 20-300W junction boxes (ranging from six diodes to one diode). It can be widely used by junction box manufacturers and photovoltaic module manufacturers to test the electrical performance parameters of junction boxes, thereby improving the performance and quality of junction box products.
Functions of the Intelligent Solar Photovoltaic Junction Box Comprehensive Measuring Instrument:
● The volt-ampere characteristics of the diode, i.e., the forward voltage drop value;
● Diode reverse leakage current;
● The current flow temperature rise test involves applying a certain working current for a certain period of time and repeatedly detecting the forward voltage drop and reverse leakage current of the diode at room temperature and high temperature;
● The conduction DC resistance test can determine whether the junction box leads have short cores or are reliably crimped by testing the resistance value of the wires;
● The thresholds (limit values) for leakage current and forward voltage drop can be set,
● If the diode is reversed or damaged, there will be buzzer alarm, light alarm, and Chinese prompts.
Technical Specifications of the Intelligent Solar Photovoltaic Junction Box Comprehensive Measuring Instrument:
● Current setting 0-20A (can be set according to the number of diodes)
● Voltage setting: 45V, 50V, 90V, 100V, 135V, 150V, 180V, 200V, 225V, 250V;
● Leakage current measurement range: 0-100mA, accuracy 0.1%;
● Forward voltage drop measurement range: 0-20V, accuracy 0.1%;
● Conduction resistance measurement range: 0-2000mΩ, accuracy 0.1%;
● Display digits: 4 digits;
● Current flow timing setting: 0-30 seconds;
● Working power supply: 50Hz 220V±10%/500W
● Dimensions: 480*200*400mm
● Instrument weight: 16Kg
