Description
The GE SR750-P5-G1-S1-HI-A20-R is a GE management relay belonging to the 750/760 branch series. Functional Features: High-precision Control: It can achieve precise control of the circuit, ensuring that the equipment operates according to the preset conditions and logic, and providing stable and reliable control signals for various industrial equipment and systems. High Stability and Reliability: By using high-quality components and advanced manufacturing processes, it has strong anti-interference capabilities. It can work stably in harsh industrial environments, reducing the probability of failures and ensuring the continuous operation of the system. Quick Response: It can quickly react to the input signals and timely control the connection and disconnection of the circuit, meeting the application scenarios with high real-time requirements. Powerful Metering Function: It can determine various parameter values such as voltage, frequency, the percentage from load to operation, operation and maximum demand, etc. It can also use the metering function to trigger an alarm when the circuit breaker maintenance threshold is exceeded, which is convenient for timely equipment maintenance and troubleshooting.
Appearance and Interfaces:
Reasonable Front Panel Layout: It is divided into four parts: a 40-character liquid crystal display (LCD), a keyboard, LEDs, and an RS232 port. The LCD is an alphanumeric display that can show various system values, making it convenient for users to know the running status of the equipment in real time. The keyboard is used for manual settings and navigation, with convenient operation. The LEDs can indicate problems in the system, enabling users to quickly grasp the working condition of the equipment. The RS232 port allows direct connection to a computer running the Enervista750 software, which is convenient for operations such as parameter configuration, data monitoring, and analysis.
Application Areas: It is widely applied to various occasions that require circuit management and high-precision control and protection, such as industrial automation, power protection, intelligent buildings, communication, transportation, etc. In the field of industrial automation, it can be used for the control and monitoring of equipment on production lines. In the power system, it can protect and monitor power equipment. In intelligent buildings, it can realize the intelligent management of the electrical system, etc.
The working principle is as follows:
Data Collection and Monitoring: Through the internal measurement circuit and relevant sensors, various parameters in the power system are collected in real-time, including voltage, current, frequency, etc. For example, it can use a voltage transformer and a current transformer to convert the high voltage and large current in the power system into low voltage and small current signals suitable for measurement, and then conduct precise measurement and analysis to monitor the operating status of the power system.
Data Analysis and Processing: The collected data will be transmitted to the microprocessor of the relay. The microprocessor analyzes and processes the data according to the preset algorithms and logic. For instance, it calculates values such as watt-hour cost, tripping load percentage, operating and maximum demand, etc., and compares these data with the set thresholds to determine whether there are abnormal situations in the power system, such as overload, short circuit, abnormal voltage, etc.
Protection and Control: When an abnormal situation in the power system is detected, the relay will take corresponding control measures according to the preset protection strategy. For example, when an overload occurs, the relay may trigger an alarm signal to remind the staff, or directly cut off the circuit to protect the safety of the power equipment and the system. At the same time, it can also control devices such as circuit breakers and contactors through the control output interface to achieve the protection and regulation of the power system.
Communication and Interaction: The relay is equipped with a variety of communication interfaces, such as the RS232 port, etc., and supports communication protocols such as Modbus TCP/IP. It can exchange data and communicate with other devices (such as computers, PLCs, etc.). Through the communication interface, it can upload the collected data and status information to the monitoring system, and at the same time receive control instructions and configuration parameters from the monitoring system, realizing the functions of remote monitoring and control, which facilitates the centralized management and maintenance of the power system by the staff.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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