Product Introduction
The DJGZ-NWFD101 simulation concentrator adopts a 32-bit high-speed microprocessor and communicates with the main station through wireless public network 4G/3G/GPRS/CDMA or Ethernet. It is a microcomputer based intelligent acquisition terminal that integrates telemetry, remote signaling, centralized reading, statistics, and wireless communication functions. At the same time as centralized meter reading, monitoring and data statistics of distribution transformers in the substation area can be completed, and a remote centralized meter reading system for electricity automation can be formed in conjunction with the main station system, which has a positive significance in improving the efficiency of centralized meter reading in the community and reducing line losses.
When used as a training function, the simulation concentrator has special teaching functions. It can set terminal error parameters, simulate terminal operation faults, and set terminal anomalies through the internal terminal. The setting of terminal fault points needs to be coordinated with fault setting software. It can be used for student training, skill assessment, skill competitions, etc. in power harvesting systems.
Product features/main functions
● Terminal communication failures: Terminal not online (poor signal strength), Ethernet module failure, unstable installation of SIM card, SIM card damage, poor contact of communication module, abnormal GPRS communication.
● Terminal parameter faults:
Terminal uplink communication parameter errors: incorrect main station IP address, incorrect main station port number, incorrect terminal IP address, incorrect terminal administrative area code, incorrect terminal address, and incorrect terminal uplink communication protocol.
Terminal downlink communication parameter error: The information of the terminal measurement point and the energy meter under the measurement point are inconsistent, the communication address of the energy meter under the measurement point is inconsistent with the actual corresponding energy meter address, the communication baud rate of the energy meter under the measurement point is inconsistent with the meter baud rate, the communication protocol of the energy meter under the measurement point is inconsistent with the meter communication protocol, and the access circuit of the energy meter under the measurement point is inconsistent with the actual access circuit of the meter.
Terminal hardware failures: terminal failure to start, terminal white screen, terminal black screen, terminal splash screen, etc.
Adopting industrial grade Cortex-M3 series controllers and embedded operating systems.
Excellent electromagnetic compatibility performance, able to resist interference from high voltage spikes, strong magnetic fields, strong static electricity, lightning surges, and has a strong range of environmental adaptability.
The wide voltage range design makes it more reliable and adaptable to the working environment.
Main technical parameters
supply voltage |
3 × 220/380VAC ± 20%, operating frequency: 50Hz ± 5%; |
Overall Power Consumption |
≤ 10VA in non communication state; |
Exterior structure |
290mm × 180mm × 95mm, overall weight: ≤ 3Kg ; |
Remote channel |
Communication speed not less than 9600bps, built-in communication module, supporting multiple communication methods such as Ethernet, GPRS/CDMA; |
ambient temperature |
-40 ℃~+70 ℃, relative humidity: 10%~100%; |
System clock error |
≤ ±1s/d; |
Power failure protection |
The data outage storage period is 10 years; |
Copy success rate |
100%, with a success rate of more than 97% for one-time copying (power line carrier); |
Accuracy of copying |
100%; |
Interface segregation |
RS485 is an independent optoelectronic isolation interface with an isolation voltage greater than 2000V; |
Product standards |
Technical Specification for Concentrator of Low Voltage Power User Centralized Meter Reading System of China Southern Power Grid Co., Ltd |
Typical applications
Used for low-voltage electricity information collection simulation training system, the simulation concentrator is used as a training device with special teaching functions. It can set terminal error parameters, simulate terminal operation faults, and set terminal abnormalities through the internal terminal. By cooperating with fault setting software, terminal fault points can be set. It can be used for student training, skill assessment, skill competitions, etc. in power harvesting systems.