Description
The GE UR6AH is a protection and control device in the Multilin series products of General Electric (GE), which is commonly used in industrial scenarios such as power systems.
Functional Features
Comprehensive Protection Functions: It has various protection functions such as overcurrent, overvoltage, undervoltage, differential protection, and distance protection. It can provide all-round protection for electrical equipment in the power system, such as transformers, lines, motors, etc. When abnormal parameters such as current and voltage are detected, it can act quickly to cut off the faulty circuit, preventing equipment damage and the expansion of accidents.
Flexible Control Functions: It supports the opening and closing control of switching equipment (such as circuit breakers), and can achieve automatic control according to preset logic and conditions. For example, it will trip automatically when a fault is detected, and it can be automatically or manually closed to restore power supply after the fault is eliminated. It can also realize functions such as sequential control of equipment and synchronous closing, meeting the operation requirements of different power systems.
High-precision Measurement Functions: It can accurately measure electrical parameters such as current, voltage, power, and frequency. These measurement data can not only be used for protection and control decisions but also uploaded to the monitoring system through the communication interface, providing accurate data support for the operation analysis and management of the power system.
Powerful Communication Functions: It supports multiple communication protocols, such as Modbus, DNP3, IEC 61850, etc. It can conveniently communicate and exchange data with other intelligent devices (such as substation automation systems, distributed energy management systems, etc.), realizing the networked and intelligent management of the power system.
Event Recording and Analysis Functions: It can record various events occurring in the system, such as protection action events, switch operation events, etc., and record detailed information such as the occurrence time of the events and parameter changes. These event records can be used for fault analysis and accident tracing, helping operation and maintenance personnel to quickly locate and solve problems.
Technical Specifications
Operating Power Supply: It usually supports multiple power inputs. Common ones include DC 24V, 48V, and AC 110V, 220V, etc., to adapt to different application scenarios and power conditions.
Measurement Accuracy: The measurement accuracy of current and voltage can reach level 0.2 or higher, and the power measurement accuracy can reach level 0.5, which can meet the requirements of high-precision measurement.
Sampling Frequency: It has a relatively high sampling frequency, generally more than several thousand times per second, which can quickly and accurately capture the changes of electrical parameters.
Operating Environment: The operating temperature range is usually from -25°C to +60°C, and the humidity range is 5% - 95% (without condensation), which can adapt to relatively harsh industrial environments.
Application Areas
Substations: It is used for line protection, transformer protection, busbar protection, etc. in substations to ensure the safe and stable operation of substations. It can monitor the operating status of electrical equipment in real time, detect and deal with faults in a timely manner, and improve the reliability of power supply.
Industrial Power Distribution Systems: In industrial power distribution systems such as factories, mines, and commercial buildings, it protects and controls the power distribution lines and electrical equipment to prevent production interruptions and equipment damage caused by electrical failures.
Renewable Energy Generation: In renewable energy generation systems such as wind power generation and photovoltaic power generation, it protects and controls the power generation equipment and transmission lines to ensure the reliable connection and stable output of renewable energy.
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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