The NuPAC Reactor Protection System is a high-reliability digital protection system platform developed by China Nuclear Self-Instrument Systems Engineering Co., Ltd. based on field programmable gate array (FPGA) technology, has independent intellectual property rights, and meets the requirements of large nuclear power plants. It can be used in nuclear power plants, high-end industrial control fields such as high-speed railways, aerospace, and government procurement. The NuPAC Reactor Protection System passed the review of the U.S. Nuclear Regulatory Commission (NRC) and China Nuclear Safety Administration (NNSA) in 2016, becoming the world's first nuclear power plant reactor protection system platform to pass administrative licensing by the Chinese and US government nuclear safety supervision agencies.  Characteristics and innovations of NuPAC reactor protection system: 1. The new generation of nuclear safety-level instrument and control system platform developed based on field programmable gate array (FPGA) technology has unique system structure design that comprehensively improves safety, reliability, testability and verifiability;2. When the system is running, hardware is configured to realize various computing functions, and the logical functions are highly deterministic; there is no operating system and software, which reduces the risk of possible software common cause failures;3. FPGA chip parallel processing is used to realize the computing functions required by the protection system, which can be implemented in 1~Complete logical processing within 2 milliseconds;4. Using FPGA technology based on hardware circuits, the circuit cannot be changed during the operation of the system, which can effectively resist viruses or artificial network attacks and provide better information security for the system;5. It adopts a unique distributed physical structure and a highly reliable backplane mesh communication method to improve the reliability of the system. 6. Reliability is better than CPU technology, and the average time between failure (MTBF) of cards reaches 1 million hours;7. The NuPAC platform can be flexibly configured. A single card can simultaneously realize switching input and output, analog input and output, temperature, pulse processing, communication, logic processing and other functions;8. Based on the long life cycle of FPGA card products and long-term spare parts support capabilities;9. Single signal input and output, and all signals are isolated. 10.  The system communication adopts point-to-point one-way communication, with high communication reliability;11.  The response speed is fast and the stability is good. The shutdown response time of a typical reactor protection system is less than 106 milliseconds.  In terms of intellectual property rights, NuPAC reactor protection system has applied for 3 international invention patents and obtained 1 authorization; applied for 13 domestic invention patents and obtained 5 authorized invention patents; applied for 9 utility model patents and obtained 9 authorization; Obtained 2 software copyrights.  Regarding the promotion and application of technological achievements, the first is the industry background: the "National Nuclear Power Medium and Long-Term Development Plan (2005 - 2020)" officially promulgated by the state in October 2007 stated: ldquo; By 2020, the installed capacity of nuclear power will strive to reach 40 million kilowatts; the nuclear power capacity under construction by the end of 2020 should remain around 18 million kilowatts. amp;rdquo; With the localization of reactor protection systems and the implementation of large-scale production, a large amount of capital and foreign exchange can be saved, and it has broad application prospects. The NuPAC reactor protection system developed by China National Nuclear Power Corporation has won the contract for the CAP1400 demonstration project, and the development of an engineering prototype of the CAP1400 reactor protection system has been completed. Through its application in the CAP1400 demonstration project nuclear power plant and its demonstration effect, large-scale promotion and application in other nuclear power plants will be achieved.