CZT100 microcomputer protection and control device is suitable for distribution system with voltage level of 35kV and below. It is composed of high integration, chip processor without bus, high precision current and voltage transformer, high insulation strength outlet intermediate relay, high reliability switching power supply module and other components. It has perfect protection, measurement, control, incoming line, back-up automatic switching and communication monitoring functions, Realize unattended and intelligent management of distribution system.

Features of the device:
The main control chip adopts the latest Cortex-M3 industrial grade processor of the international advanced arm company. The bus does not come out of the chip, and integrates protection, remote control and communication, greatly reducing the use of peripheral components and further enhancing the reliability.
The on-site programmable logic function is adopted for input and output, which is convenient for users to customize input and output. When one channel fails, the user can switch to another at any time. It has 8 programmable inputs and 4 programmable outputs.
The device has perfect dynamic and static self-test function, online monitoring the working state of each part of the device, ensuring the reliability of the device.
The built-in high-precision clock chip has the function of automatic continuous time travel after power failure.
The analysis function is perfect, including protection action event record, fault record, switch action event record, device power on and power off time record, etc.
It adopts RS485 communication with rich communication protocols and supports Modbus - 101 - 103 - 104, etc., which is convenient for networking and accessing to SCADA system. The hardware has lightning protection and anti-static measures, and the communication is safe and reliable.
It has the function of detecting up to 21 harmonics, and can understand the power quality situation concisely and clearly.
The device has the function of fault wave recording, AC acquisition of 80 sampling points per cycle, which is convenient for users to find out the fault causes.
It has reliable program upgrade function and ensures that users use the latest and most reliable terminal program.
The device has simple and compact structure, convenient and flexible installation, and is suitable for the compact installation conditions of ring main unit.
The fully sealed aluminum alloy case structure has good electromagnetic shielding performance and strong anti-interference ability.
The device adopts large LCD Chinese LCD display, friendly menu selection, operation interface, rich process record, convenient operation, debugging and viewing, and various protection functions can be switched on and off freely through the soft pressing plate.
It adopts advanced SMT surface mounting production process, multi-layer circuit board design, separation of strong and weak current, strong anti-interference, greatly improving the reliability of the device.