Launched "K2ZC-K2RV-NPC" integrated protective relay for self-consumed solar power generation system Corporate release | Nikkan Kogyo Shimbun Electronic version

Release issuing company: OMRON Corporation

-Realizing space saving, labor saving, and cost saving in high-voltage power receiving equipment- OMRON Social Solutions Co., Ltd. (Headquarters: Minato-ku, Tokyo, President: Toshio Hosoi, hereinafter, OSS) is an office building, commercial facility, and factory. In high-voltage power receiving facilities such as * 1, an integrated type that realizes self-consumed solar power generation with space saving, labor saving, and cost saving, in which the business operator consumes the power generated by solar power by himself / herself without selling it. The protective relay "K2ZC-K2RV-NPC" will be released on April 1, 2021. In recent years, the number of companies that utilize renewable energy is increasing due to RE100's efforts to cover 100% of the energy required for business operations with renewable energy and the increase in business opportunities through ESG investment. Under these circumstances, with the spread of solar power generation that sells all power, the problem of utilizing renewable energy is that the free capacity of the power grid (power system) that accepts the sold power is running out, and it has become an issue for the power grid. Self-consumed photovoltaic power generation systems that can be installed even if there is no free space are attracting attention. On the other hand, the number of equipment required for installation is large, and the wiring is complicated, so the installation cost is high. The challenge is to shorten the construction period and minimize the impact on the user's business because it is necessary to secure the installation space when installing the equipment and to install it in a power outage. Therefore, OSS has reduced the size by combining the protective elements (reverse power detection function, ground fault overvoltage detection function) required for a self-consumed photovoltaic power generation system in high-voltage power reception and the power supply backup function of these devices into one. We have developed a protective relay "K2ZC-K2RV-NPC". In addition to realizing space saving that the installation volume is reduced by 85% compared to the conventional product, this product simplifies various settings and installation, and integrates complicated wiring between each device that was required in the past. Contributes to reduction of installation cost and shortening of construction period. OSS will launch this product in April 2021 and aim to provide 6,000 devices in three years. Through the provision of this product, which was developed based on the technology and know-how cultivated through the development of protective relays and power conditioners for solar power generation, it is a more attractive self-consumption type solar power generation system even in high-voltage power receiving facilities. We will continue to promote the provision of. We will continue to promote the further spread of renewable energy that does not burden the electric power system and contribute to the creation of a sustainable society. * 1 High-voltage power reception means receiving 6,600V or 3,300V electricity sent from a substation via a power receiving facility. In recent years, in order to reduce electricity costs, the number of cases where high-voltage power is received even in small stores such as convenience stores is increasing. Main features of "K2ZC-K2RV-NPC" Contributes to securing installation space on the power receiving board (cubicle) When installing in an existing facility, various protective devices will be retrofitted to the built-in power receiving board (cubicle). Become. Therefore, it is required to save space for the equipment so that it can be installed in the empty space inside the power receiving panel. -Integrated functions required for self-consumed photovoltaic power generation, such as reverse power detection function, ground fault overvoltage detection function, and power supply backup function, and realized a space saving of 85% compared to the conventional one in terms of installation volume. Reducing the load of installation work and minimizing the impact on the business When installing protective relays, etc., it is necessary to work in a state where the facility is out of power for safety, so prompt work is required for installation and wiring. Will be.・ By integrating the three devices, the number of steps for wiring and setting is reduced. ・ The installation method using DIN rail minimizes the number of board machining and reduces the number of steps for installation work. ・ Wiring from the front is possible and high pressure Reduced work in the area, improved workability and safety-By using a dedicated split-type CT, it can be introduced without cutting existing wiring. About OMRON Social Solutions OMRON Social Solutions Co., Ltd. Has produced many world's first and Japan's first social and public systems, including station affairs automation systems such as automatic ticket gates, using its own automation technology. We will continue to quickly grasp social issues such as labor shortages, energy, and resilience, build solutions with cutting-edge technologies such as IoT, AI, and robotics, software, and total services for operation and maintenance, and create a safe, secure, and comfortable society. 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* Product prices, specifications, service details, etc. described in the news release are as of the date of announcement. Please note that it is subject to change without notice.