ZHM05 Main monitoring of intelligent high frequency switching DC power supply

Product Specification

ZHM05 main monitoring is the control and management center of the entire high-frequency switching power supply system. It can provide high-frequency switching power supply
Long term automatic monitoring of various functional units and batteries in the system, obtaining various operating parameters and states, and root.

Based on real-time comprehensive analysis of measurement data and operating status, control and management of the system are implemented to achieve the full power supply system
Automatic and precise management to improve the reliability of the DC power supply system, ensuring its continuity, safety, and reliability in operation
Sex.

The ZHM05 main monitoring system has four remote functions: telemetry, remote signaling, remote control, and remote adjustment, which can meet the automation and electrical needs of power plants.

Requirements for unmanned substations in power systems; Equipped with RS485/RS232 interface and network interface, it can be easily integrated into the power station.

Automated systems.
1.1 Characteristics
1.More user-friendly design, using large screen true color LCD display, more vivid human-machine interface, touch based graphical operation
Make it convenient for users to use;
2.Adopting mainstream and stable LINUX operating system kernel to make the system run more stably and reliably;
Integrated DC sampling and switch input/output functions, DC sampling and switch can be configured and mapped to actual channels;
3.Multi serial parallel communication ensures real-time sampling data, truly achieving real-time and fast control of the monitoring system
monitor;
4.A monitoring system can achieve independent management of up to two sets of batteries, meeting the requirements of user battery redundancy configuration;
5.The diverse communication interfaces of the upper computer greatly facilitate the integration with remote monitoring;
6.There are various ways to upgrade software, and the human-machine interface can be upgraded using a USB flash drive or through a network interface.

1.2 Main functions
1.Provide human-machine interface, realize system operation parameter display and system control operation through 7-inch true color display screen and touch screen Creation, system parameter setting, and system maintenance, etc
2.Monitoring the voltage of dual AC power supply and the status of AC contactors: when one power grid loses power, the power grid voltage is too high or too low,When there is a phase loss or three-phase imbalance in the power grid, the system power supply will be automatically switched to another path and an audible and visual alarm will be issued.
3.Protect the equipment and issue an alarm in case of the following conditions: abnormal AC voltage, charging device failure, bus power
Abnormal voltage, abnormal battery, busbar grounding, branch insulation fault, etc.
3.Inspect the output current and working status of the rectification module: When the module has a fault, the monitoring system sends out an audible and visual alarm signal.Number and automatically redistribute the load of the rectifier module.
4.Local or remote control can be used to turn on/off the rectifier module and switch between float charging and battery charging.
The output voltage and current limit of the module can be continuously adjusted locally or remotely.
Monitor the voltage and current of each DC feed output, as well as the status of each feed output switch, fuse, and insulation
5.When there is an abnormal situation with the voltage reduction module status, an audible and visual alarm will be issued.
Monitor battery voltage and charging/discharging current: Control the charger automatically based on the charging characteristic curve and features of the battery
6.Complete the charging of the battery and the conversion of charging methods. Online monitoring of the status of individual batteries, including discharge and charging
Voltage automatically compensates with temperature.
7.It has the function of selecting insulation lines for segmented bus branches, and an alarm is triggered when the insulation resistance of the branch is too low.
8.Adopting the standard communication protocol of the Ministry of Electric Power, RS232 or RS485 serial communication interface, supporting 2400BPS, 4800BPS 9600BPS and 19200BPS baud rates, which can be easily integrated with power automation systems;
9.Remote measurement mainly includes: DC bus voltage, rectifier module power, AC voltage, etc.
10.The remote signal mainly includes: normal working status of the charging module and monitor, fault working status, and DC bus overvoltage/
Undervoltage, insulation condition of DC feeder, status of incoming switch, float/equalization charging status, protection signal of AC input, etc.
11.The monitoring system provides 8 sets of relay normally open contact outputs for important fault information, and can also be extended with an external output module.
12.Real time operation curve display, which can monitor the voltage and current waveforms of each measurement point in the past 2 hours; Discharge curve and number.According to the save, view the historical discharge curve.
13.Equipped with a USB interface, it can read and write USB drives, facilitating software upgrades or file backup functions