Acrel-3000 Ankerui Electric Meter Remote Reading System

The 485 remote meter reading system and Ankerui electric meter remote meter reading system subdivide and statistically analyze the electricity consumption of users, and display the usage and consumption of each sub item of electricity to management personnel or decision-makers through intuitive data and charts, making it easy to identify high energy consumption points or unreasonable energy consumption habits, effectively saving electricity, and providing accurate data support for users to further energy-saving transformation or equipment upgrading.

The Acrel-3000 energy management system is typically designed with a layered and distributed structure, consisting of on-site equipment layer, network communication layer, and station control management layer

The on-site equipment layer is mainly connected to various types of instruments used for electrical parameter acquisition and measurement in the network, and is also a necessary basic component for building the distribution system. Shouldering the heavy responsibility of collecting data.

The network communication layer is mainly composed of communication servers, interface conversion devices, and bus networks. This layer is a bridge for data information exchange, and different interface conversion devices provide various interfaces such as RS232, RS422, RS485, SPABUS, and Ethernet. The networking method is flexible and supports point-to-point communication, fieldbus networks, Ethernet, and other types of configuration networks.

The station control management layer is aimed at the management personnel of the distribution network, which directly faces the users. This layer is also the top-level part of the system, mainly composed of power management system software and necessary hardware devices such as computers, printers, UPS, etc.

The system has a user-friendly human-machine interface, displaying the operational status of distribution lines in the form of a distribution diagram. It monitors real-time electrical parameters such as voltage, current, power, power factor, and energy in each circuit, dynamically monitors the on/off status of circuit breakers, isolation switches, and ground switches in each distribution circuit, as well as signals related to faults and alarms.

The system supports the integrity of the measurement system with rich reports. The system has the function of timed meter reading, summary and statistics. Users can freely query the electricity consumption of each distribution node at any time period since the normal operation of the system, that is, the statistical analysis report of the incoming power consumption of the node and the power consumption of each branch circuit. This function makes electricity consumption visible and transparent, and can be analyzed and traced when there is a large error in electricity consumption, maintaining the correctness of the measurement system.

In the distribution diagram, when the mouse moves to the vicinity of each circuit, the mouse pointer changes to a hand shape. Clicking the mouse can view the detailed electrical parameters of the circuit, including three-phase current, three-phase voltage, three-phase total active power, total reactive power, total power factor, forward active energy, and can also view the 24-hour phase current trend curve and 24-hour voltage trend curve.

The system has the function of storing and managing real-time and historical power parameters. All real-time collected data, sequential event records, etc. can be saved to the database. In the query interface, it is possible to customize the parameters to be queried, specify the time, or select the latest updated record data to be queried, and display them in a report format. Users can customize daily and monthly reports according to their needs, support exporting Excel format files, and can also export PDF format files according to user requirements.

The system monitors the operation status of the main incoming line, main transformer, and important load outgoing line of the distribution system in real-time online. It displays the operating trends of current, transformer operating temperature, active demand, active power, apparent power, and transformer load rate through curves, analyzes transformer load rate and losses, and facilitates operation and maintenance personnel to timely grasp the operation level and power demand, ensuring safe and reliable power supply.

The system has real-time alarm function, which can monitor the remote signal displacement, protection action, accident tripping, as well as events such as voltage, current, power, power factor exceeding the limit of the distribution circuit breaker, isolation switch, grounding knife opening and closing action, and issue alarms according to the event level. When the system alarms, a real-time alarm window will automatically pop up and sound or voice reminders will be issued.

The system can store and manage event records such as remote signal displacement, protection actions, accident tripping, and voltage, current, power, and power factor exceeding limits, making it convenient for users to trace the history of system events and alarms, query statistics, and analyze accidents.

The system can continuously monitor the power quality within the entire distribution system. Operation and maintenance personnel can use harmonic analysis bar charts and reports to grasp the voltage, current harmonic distortion rate, harmonic content, voltage imbalance, etc. of incoming lines, transformers, and important circuits. They can take corresponding measures in a timely manner to reduce harmonic losses and minimize abnormalities and accidents caused by harmonics (this function requires the selection of power instruments with harmonic monitoring function, which cannot be deleted).

The system supports remote control operations for opening and closing circuit breakers, isolating switches, grounding knives, etc. The system has strict password protection and operation permission management functions. For each remote control operation, the system automatically generates an operation record, which includes the operator, operation time, operation type, etc. To achieve this function, the circuit breaker itself needs to have hardware equipment such as an electrical operating mechanism, protection and measurement devices, and remote control functions.

To ensure the safe and stable operation of the system, a user permission management function has been set up. User permission management can prevent unauthorized operations (such as modifying the name of a distribution circuit). It is possible to define login names, passwords, and operational permissions for users of different levels, providing reliable security for system operation, maintenance, and management.

The system supports real-time monitoring of the communication status of various devices connected to the system, and can fully display the entire system network structure; It can diagnose the communication status of equipment online, and automatically display the faulty equipment or component and its faulty location on the interface in case of network abnormalities. Thus, it is convenient for operation and maintenance personnel to grasp the real-time communication status of various devices on site, timely maintain any abnormal equipment, and ensure the stable operation of the system.