01 Company Profile
Dongfeng Honda Auto Parts Co., Ltd. is mainly engaged in the production of key parts for engines and chassis of Honda series cars. It is an important parts production base for Honda passenger vehicles in China. The products involve camshafts, connecting rods, crankshafts, cylinder liners, front and rear knuckles, fork arms, front and rear brake discs, etc., and are mainly used for the Honda train models produced by Dongfeng Honda Motor Co., Ltd., Guangqi Honda Co., Ltd., Honda Motor (China) Co., Ltd. and overseas companies.
02 General situation of the project
Jiangsu Sfere Electric Co., Ltd. undertakes the intelligent monitoring and energy management system engineering of this project, which consists of three parts: intelligent power monitoring system, energy management system, and electrical fire monitoring system. These three parts are three relatively independent systems, each with its own independent hardware and running software. The intelligent power monitoring system, energy management system, and electrical fire monitoring system can achieve data sharing through network connection.
It can automatically collect and intelligently manage the electric energy information of all kinds of metering points in the switching station and power distribution rooms of the whole plant, so that the distribution network can operate in a safe, reliable, high-quality and efficient state, realize the remote measurement, control and management of the distribution network, and realize the demand for power safety, power management, energy conservation and consumption reduction.
Through the centralized collection and analysis of water, electricity, and gas, the user's energy consumption is segmented and analyzed to form intuitive data and charts, achieving remote meter reading functions and comprehensive energy management covering energy plan management, energy performance management, energy balance management, energy statistical analysis reports, and other functions. By monitoring parameters such as residual current and load current in the circuit, alarm and monitoring of the protected electrical circuit can be achieved, and it can be uploaded to the fire monitoring system for centralized control and management.
03 Specific configuration situation
On the drawings, the circuits of the power distribution cabinets in each power distribution room that need to install power monitoring instruments are equipped with multifunctional power meters PD194Z-9HY and integrated protectors to monitor the current and voltage of a single circuit in real time, and then connect them to the respective power distribution rooms communication management machine.
After the system is completed, the communication management machines in each power distribution room are pulled to the main control room of the main building through optical fiber converters, and all monitoring data is transmitted to the SFERE3000 power monitoring system.
Other equipment with digital communication interfaces, such as transformer temperature control equipment, DC equipment, and analog screens, need to upload data to the background computer for remote monitoring or control.
04 Network Topology Diagram Structure
The overall network acquisition structure of the system is based on the fiber optic TCP/IP network communication between each distribution room and the main control room of the main building, to complete centralized data collection and processing. The network is divided into upper layer network and lower layer network. The upper layer network refers to the Ethernet (or fiber optic Ethernet) from each sub station to the control center. Industrial grade fiber optic transceivers are used for photoelectric conversion between optical fibers and various management devices.
The underlying network consists of RS485 communication cables between instruments, protection and other devices, which are laid using dedicated twisted pair cables. Due to the configuration of communication management machines in their respective sub stations, RS485 transmission distances are all within the sub stations, and long-distance signal interference and attenuation issues will not occur.
The on-site equipment layer of the network mainly includes measuring instruments, protection devices, etc., which are installed locally in the corresponding switchgear, have local operation functions, and are not affected by remote computer startup and shutdown. This system is divided into three layers from bottom to top: device terminal layer, network communication layer, and system management layer.
05 Implement functions
It can automatically collect and intelligently manage the power information of various metering points in the high voltage power distribution room and low voltage power distribution room of the whole plant, so that the distribution network can operate in a safe, reliable, high-quality and efficient state, realize remote measurement, control and management of the distribution network, and meet the requirements of power safety, power management, energy conservation and consumption reduction.
By monitoring parameters such as residual current and load current in the circuit, alarm and monitoring of the protected electrical circuit can be achieved, and it can be uploaded to the fire monitoring system for centralized control and management. When the relevant parameters in the circuit are abnormal, the monitoring equipment emits an audible and visual alarm to indicate the alarm location. At the same time, the on-site detector emits an audible and visual alarm and control signal to remind users to investigate or replace hidden circuits, reducing the risk of fire caused by electrical reasons.
About Elecnova/Sfere Electric
Elecnova / Sfere Electric a leading manufacturer and solution provider of Power quality analyzer / Energy analyzer / kWh energy meter / Multi circuit power monitoring system / EV charger metering / Digital power meter / Motor controller / Busway temperature sensor / Harmonic Filter / Power factor correction / Low Voltage power distribution panel / Cloud view Power monitoring system.
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