National Service hotline:
1, anti-island protection device TC-3087 application range
Photovoltaic anti-island protection device TC-3087 is suitable for clean power or small power grid connected power supply system, and its public grid distribution system (by a 10kV/0.4 kV distribution transformer power supply) together with grid power supply。Due to external causes or natural causes of grid connection system,It's possible to isolate the local power system,This is very harmful to the on-site power generation equipment and the system grid,General inverters and wind power generation systems have their own anti-island function,But to be safe and secure,The external connecting points can also be installed with anti-island protection devices,In the event of an island phenomenon,As backup protection, distributed island power can be quickly cut out,Therefore, the device can fully meet this function。
The task of anti-island protection device is to monitor the low-voltage side of distribution transformer in real time.Necessary control of clean power supply。The microcomputer device and control circuit specially designed for the island can ensure the rapidity of protection action and the accuracy of control。
2. Main features of anti-island protection device TC-3087
2.1 The TC-3087 device can be centrally assembled or dispersed on the high voltage switchgear，Each interval functions independently，The anti-island devices are connected only through the network，Information sharing，This makes the whole system not only flexible，And its reliability has also been greatly improved，The failure of any one device affects only one local component。
2.2 High performance processor and high resolution A/D converter are adopted, 32 sampling points per week, combined with special measurement CT, to ensure the high precision of remote measurement。
2.3 The protection function does not depend on the communication network at all, and the failure of the network does not affect the normal operation of the protection。
2.4 Anti-island protection device adopts full seal design, coupled with well-designed anti-interference components, so that the anti-vibration ability, anti-electromagnetic interference ability has been greatly improved。
2.5 Designed with hardware and software dual watchdog function, so that the whole system has a high measurement accuracy and anti-interference ability。
2.6 Friendly man-machine interface, the device adopts the Chinese large-screen LCD display, trip report, alarm report, remote message, telemetry, set value setting, etc. are clearly marked in Chinese characters on the LCD, easy for users to use and master。
2.7 Communication mode using CAN port, that is, controller area network interface (or 485 interface)，Its characteristics are: simple structure，There are only two wires connected to the outside;Transmission speed up to 1Mbps;Transmission distance up to 10KM;CRC testing is adopted and error handling capability can be provided.Using non-destructive bus arbitration technology，The station communication has high efficiency and anti-interference ability。
