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The difference between power DTU and ordinary DTU
The power industry is one of the pillar industries in the national economic system. The application of DTU in the power industry has gradually matured. From the initial grid monitoring, it has gradually spread rs232 to ethernet adapter to all directions. In the power industry, DTUs dedicated to power are generally used.
The difference between power DTU and ordinary DTU
1. Working temperature
Power DTUs generally adopt wide temperature and wide voltage, industrial-grade design, and the working temperature is generally between -40-85°C to adapt to the harsh temperature test in winter and summer in the wild. The working temperature of ordinary DTU generally cannot meet the requirements of industrial grade, and it is mostly in the range of -20-75°C.
2. EMC protection
EMC protection is the electromagnetic radiation protection of electromagnetic compatibility. The high voltage of tens of thousands of volts in the power grid environment will produce very strong electromagnetic radiation interference. Power DTU has made a very strong protection against this environment. Radiation anti-interference, power frequency magnetic field anti-interference, and shock wave anti-interference can all reach level three or above.
3. Interface installation method
In order to adapt to the power grid environment, the power DTU is generally installed with full wiring terminals. Its RS232/485 serial port and power supply are integrated and installed as terminals, which further improves the anti-interference ability. Ordinary DTUs will not be installed in this way because they do not have a strong electromagnetic environment.
4. Transmission protocol
In addition to electromagnetic environmental factors, the power industry is also subject to special transmission protocols. 101 and 104 transmission protocols are widely used in data transmission in the electric power industry. Compared with ordinary DTU, power DTU will support these two transmission protocols.
5, power supply, 485, etc.
Generally speaking, in terms of power supply protection, the power DTU has an electrostatic protection level of four, EFT level and power conduction immunity up to three; 485’s anti-static level can reach four, and surge level three. It can be seen that the protection of the power DTU is specially strengthened.
Power DTU Features
Embedded design, small size, ultra-low power consumption, in line with the structural requirements of power distribution network automation equipment.
Wireless high-speed transmission, big data transmission is faster and smoother; supports overseas operator networks, more choices and more convenient.
Support power IEC101/IEC104 protocol transmission to meet the needs of each power master station and automation terminal.
Pass many harsh tests such as insulation test, surge interference, electrostatic discharge interference, radio frequency radiation electromagnetic field, power frequency radiation magnetic field, high and low temperature, etc.
Multiple detection mechanisms, self-repairing of operating faults, ensuring that the device is permanently online, ethernet to rs485 converter suitable for unattended environments; disconnected reconnection, data reissue, stable and reliable transmission without packet loss.
Embedded with various protocols such as PPP, TCP/IP, UDP/IP, MODBUS-TCP, MODBUS-RTU, etc., compatible with the manufacturer's private protocol.
Support the operator's private network access and specify IP to meet financial-level data security standards, and then encrypt transmission on the basis of the private network to ensure security and accuracy.
Power DTU is a power-level embedded wireless data terminal, which can help users quickly access high-speed Internet and realize safe and reliable data transmission.
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