Entrusted by Zhejiang Economic Commission, Yueqing Economic and Information Technology Bureau held the holding of DJGL33-ZTY666.004 type which was undertaken by Zhejiang Chint Instrument Co., Ltd. on February 6, 2018 in Hangzhou Zhengtai Measuring Technology Co., Ltd. (State Grid II) and other four provincial industrial new product appraisal meeting. At the meeting, the expert group listened to the technical work summary, testing, inspection and other reports, view the product, unanimously approved four new products through the identification. , DDZY666.019-type single-phase fee-controlled smart meter new product overall level reached the international advanced level, DTZY666C-J.006 type three-phase four-wire fee-controlled smart meter in the leading domestic level, the other two have reached the domestic advanced .
It is understood that this time through the provincial appraisal of new products were DJGL33-ZTY666.004 type concentrator (State Grid II), DJZ666.003 DC smart meter, DTZY666C-J.006 type three-phase four-wire fee control Smart meter, DDZY666.019 single-phase fee-controlled smart meter four energy meters and electrical information collection system terminal which, DDZY666.019-type single-phase charge control smart energy meter firmware upgrade process using digital signatures, encrypted transmission Means to ensure the safety and reliability of the firmware upgrade; Impulse voltage withstand voltage level up to 10kV IR46 requirements, the use of SAG (voltage sag) detection to ensure grid 500ms interrupt after the normal work; by detecting the supercapacitor real-time voltage adjustment MCU wake-up time, open and close the cover open and detect the end of the event, to achieve real-time monitoring of power theft; without changing the meter hardware and firmware can be applied to a variety of communication modules to meet a variety of data acquisition AMI. Measured by the Institute of Metrology, the measured performance index meets the requirements of the standards such as IEC 62052-22-2003 and obtained the DLMS certification. The DTZY666C-J.006 type three-phase four-wire charge-controlled smart watt-hour meter is based on the IR46 standard The dual-core (parallel dual-CPU) design of the measurement core and the management core is adopted to separate the measurement and management functions. The object-oriented design is used to independently upgrade each module of the management core software, and the over-current protection technology Abnormal work module does not affect each other, the use of dot matrix LCD to meet the needs of users personalized display.
The appraisal of new products is not only a comprehensive assessment of the company's R & D system work, but also the company to increase investment in research and development to continuously enhance the level of R & D concrete manifestation of the level of product innovation and expand market share is of great significance.