Power quality monitoring仪System composition:

1On site monitoring layer

Install various types of electrical energy and power quality monitoring equipment on site, and require communication functions. The main products includeACR330ELH、ACR320ELH、ACR230ELH、ACR220ELHOther power instruments.

2. Communication Transport Layer

The devices responsible for data communication transmission in order to transmit the data collected by monitoring layer devices to the server mainly include communication management machines, serial servers, network switches, etc. The data collection terminal communicates with the monitoring layer device through a serial port, reads the data, conducts preliminary analysis and organization, and saves the data locallySDIn the card, the data is then transmitted to the wireless communication module. The wireless communication module adopts radio frequency technology to form a wireless local area network on site, collecting data organized by various data collection terminals and transmitting it to the backend server. Data can also be transmitted through network cables or optical fibers.

3. Data management layer

The process of storing, parsing, and applying collected data, including server setup and various software applications.

Power system power quality monitoring instrument的System functions:

1The standard monitoring system hasCADDisplay the wiring situation of medium and low voltage distribution networks in a single line diagram；The massive system has the function of multi screen switching and screen navigation；The decentralized distribution system has a spatial and geographical plane of the system's main screen. The main screen can directly display the operating status of each circuit, and has the function of coloring the circuit with power, non power, and faults. The main electrical parameters are directly displayed on the human-computer interaction interface and refreshed in real-time.

2. User Management

Different levels of users can be granted different permissions to ensure the reliability of the system during operation. For example, the closure of an important circuit/The opening operation requires an operator level user to input the operation password, and an engineer level user to input a confirmation password before completing the operation.

3Data collection and processing

adoptAcrel-2000The power monitoring system can collect various electrical parameters and switch status of on-site equipment in real time and at a fixed time(Including three-phase voltage, current, power, power factor, frequency, harmonics, imbalance, currentKCoefficient, telephone waveform factor, voltage peak coefficient, electrical energy, temperature, switch position, equipment operation status, etc)Display the collected data directly or generate new intuitive data information through statistical calculations before displaying it(Total system power, load value, upper and lower limits of power factor, etc)And store important information in the database.

4Trend curve analysis

The system provides two curve analysis interfaces: real-time curve and historical trend. By calling the real-time curve interface of the relevant circuit, the current load operation status of the circuit can be analyzed. By calling the real-time curve of a certain distribution circuit, the signal fluctuation caused by the electrical equipment of the circuit can be analyzed. The historical trend of the system refers to the system, and all stored data can be viewed to facilitate quality analysis of the monitored distribution network by engineering personnel.

5Report Management

The system has a standard electricity report format and can design report formats that meet user needs according to their needs. The system can automatically design. It can automatically generate various types of real-time operation reports, historical reports, event fault and alarm record reports, operation record reports, etc. It can query and print all data values recorded by the system, and automatically generate daily, monthly, quarterly, and annual electricity reports.Power system power quality monitoring instrumentGenerate electricity rate reports based on the time period of the compound rate and the set value of the rate. The starting point, interval, and other parameters for querying and printing can be set independently；The system design can also customize report output functions to meet different requirements according to user needs.