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     The SHPQMS (Shuanghe Power Quality Management System) is an electric power monitoring system adopting modern measurement technology, network technology, and computer technology to monitor and manage the power quality of the whole system, improve its energy management efficiency, and guarantee its safe and reliable operations.

    The SHPQMS is composed of the SHDFR_PQ and the PQMS.
    The SHDFR_PQ mainly implements the following functions:

    ? Power quality monitoring: Meeting requirements for power quality steady state index monitoring, transient power quality event recording, and the like, as specified by the relevant

          national standards;
 ? Automatic alarm: A threshold is set to trigger such functions as power quality event alarm and marking;

 ? Communication ports: Supporting various communication ports and protocols for information collection and transmission.

    As the PQMS supports the PQDIF format, it may conveniently communicate and share data with other systems and smart devices supporting this format:

 ? Real-time monitoring: The system implements real-time power quality monitoring and analysis;
 ? Event management: Carrying out unified management of the alarms and power quality events within the system;
 ? Historical data and reports: Historical data inquiry and user-defined report output;
 ? User device management.

Main Purposes

The SHPQMS can be extensively applied in power transmission and distribution networks, traditional power plants, electrified railways, new energy enterprises such as wind power companies, and massive industrial or mining enterprises such as steel and petrochemical companies. By monitoring the power quality at the key nodes of the power transmission and distribution networks, power plants, and major industrial enterprises, the system can, in the long run, analyze the power quality, troubleshoot power quality problems, and trigger preventive/predictive maintenance actions in a specific way. It can help customers achieve the following objectives:

Applications in Power Companies:
? To monitor in real time the operational state of the system to ensure the safe operations of the power system;
? To improve the reliability of the power transmission and distribution networks;
? To verify the compliance with power quality standards;
? Spot and analyze in a timely manner any fault caused by power quality trouble to shorten the duration of outage due to the fault.
? To monitor and spot sources of electric pollution globally to provide solutions for power quality management;
? To help, through operational and power quality data, customers to manage their power networks and ensure their safe and reliable running.

Applications in Industrial and Energy Enterprises:
? To monitor in real time the operational state of the system to ensure the continuity and reliability of power supplies;

? Energy consumption and cost management;

? To monitor in real time the power factor to reduce power factor penalties;
? To verify contractual fulfillment in terms of power quality;
? To monitor various power quality indices to ensure the safe and reliable running of the equipment and reduce the risk of faults
? To identify the hidden trouble with user equipment and provide a solution accordingly;
? To make the best use of the existing system capacity to avoid repetitive construction;
? To carry out preventive maintenance so that the equipment can have a longer lifespan;
? To improve managerial efficiency and reduce operational costs.