1) Built-in high-configuration industrial computer, using programmable logic controller PLC as the central processor, real-time scanning of AC signals to achieve comprehensive monitoring and closed-loop control, and password setting management is designed. Only personnel with corresponding operation permissions can perform certain functions.
2) Imported PC true color large LCD touch screen operation, using intelligent sensors supporting fieldbus technology to achieve fully digital data transmission. The display operation unit uses a touch color LCD screen with full Chinese menu, clear and intuitive interface, simple and convenient operation. Testing requires no external auxiliary equipment, fully automatic control, foolproof operation, fast, simple, and convenient.
3) The instrument has two test methods: fully automatic and manual. Simply set the test current and time. It comes with an automatic current stabilization system.
4) Just set the target current, no manual monitoring required. Only need to set the test, current, and step size, eliminating tedious tasks such as manual voltage adjustment, manual recording, and curve drawing, reducing labor intensity and improving work efficiency. After the work is completed, data can also be read to the computer for viewing.
5) It has an automatic alarm function when exceeding the limit value, and reliable self-protection functions for overheating, overcurrent, overvoltage, and short circuit. The AC voltage regulation device protection should adopt dual protection of microcomputer automatic control and mechanical micro-limit switch to ensure the normal operation of the constant current power supply and improve the safety and reliability of the product.
6) User-friendly interface, friendly software interface, full Chinese operation interface. The control software has multiple practical functions such as data recording, storage of current and temperature waveforms, data management, reports, printing, etc.; all parameter settings are completed in the software. It more intuitively analyzes the relationship between current and temperature. During the test, it automatically tracks the target current, automatically stabilizes the output current, and automatically adjusts the three-phase current; after the test is completed, it automatically returns to zero.
7) Automatically adjust the AC constant current source to meet the temperature rise test of low-voltage switchgear assemblies (including control cabinets with multiple outputs such as GCK, MNS, etc.) in GB 7251.1 to GB 7251.5 standards. The automatically adjusted AC constant current source should be able to operate multiple constant current power supplies in parallel during the temperature rise test (provide copies of evidence materials showing users using multiple constant current sources in parallel operation, such as temperature rise tests of GCK or MNS).
8) Equipped with a three-phase automatic balancing system to ensure balanced three-phase output. The output current sampling uses imported Rogowski coils and adopts the latest power electronics technology, with strong anti-interference capability and high output accuracy, up to 0.5 level.
9) Equipped with a precision adjustment menu, users can adjust the error value themselves. The programmable AC constant current source can achieve fully intelligent calibration, automatically generating multi-segment correction coefficients within the adjustable range of the equipment to ensure the current stabilization accuracy of the constant current power supply.
10) Test modules can be customized according to user requirements, and software is free to upgrade for life.
11) Adopts 16-channel temperature measurement module.
