ABB REX521GHHPSH51G PROTECTION UNIT
ABB REX521GHHPSH51G PROTECTION UNIT
Product Overview
The ABB REX521GHHPSH51G protection unit integrates protection, measurement, monitoring and control functions for medium voltage power systems. It is designed to provide efficient network protection to ensure stable power system operation.
Main functions
Protection function:
Provides three-phase overcurrent protection, including non-directional and directional earth fault protection, as well as thermal overload protection and phase discontinuity protection.
Suitable for neutral ungrounded system, resonant grounding system, neutral direct grounding system and resistance grounding system.
Powerful protection functions allow its application in large and medium-sized medium-voltage motor protection units.
Measuring and monitoring functions:
Provides comprehensive measurement functions, including measurement of current, voltage, frequency, power factor and other parameters.
Monitors power quality in the network, such as measuring harmonics.
With status monitoring function, it can monitor the relay body and system primary and secondary devices at the same time, which strengthens the operational reliability of the protection.
Control function:
Provides functions such as circuit breaker control and automatic reclosing.
Multiple rounds of automatic reclosing can be configured to adapt to different power system requirements.
Technical features
High sampling rate: The integrated fault recording module has a high sampling frequency, which can accurately capture and analyse faults.
Multi-language user interface: provide full Chinese or other multi-language user interface, debugging and operation is very convenient.
Advanced Data Acquisition and Analysis Functions: Supporting advanced data acquisition and analysis functions, it makes a new contribution to the improvement of user network control efficiency and operation and maintenance.
Applications
ABB REX521GHHPSH51G protection unit is suitable for feeder protection, generator protection, transformer protection and other occasions in the power system. It can quickly remove faults, prevent faults from spreading to the power grid, and ensure the stable operation of the power system.
Product Advantages
High reliability: It is manufactured with advanced technology and high-quality materials to ensure the reliability and durability of the product.
Comprehensive functions: integrated protection, measurement, monitoring and control functions in one, to meet the multiple needs of the power system.
Easy to operate: Provide full Chinese or other multi-language user interface and explicit message alarms, which are convenient for users to carry out debugging and operation.
Main Functions
Power system monitoring and control:
The power interface board can be used for power system monitoring and control equipment to ensure the safe, stable and reliable operation of the power system.
Power plant automation:
In the power plant, it can be used to connect and manage the power supply of the mastering system and monitoring equipment to improve the automation level of the power plant.
Power transformer and distribution:
Applicable to substations and distribution stations, it is used to govern the power supply of transformers, circuit breakers and other equipments to ensure the high efficiency of power transmission and distribution.
Industrial Process Mastering:
In manufacturing and chemical workshops, this power interface board can be used for power management of automation systems, inner and control equipment to enhance productivity and safety.
Building Automation:
It can be used in building automation system, power supply to lighting, air conditioning, security equipment, etc., to achieve intelligent management of building equipment.
Railway flag signal system:
In the railway system, it is used in the power management of railway flag signal equipment and control system to ensure the stable operation of railway signal system.
Smart Grid:
In the smart grid, the power interface board can be used to connect and manage the digital power equipment and promote the intelligent development of the power grid.
Traffic Flag Signal System:
In the traffic flag signal system of routes and intersections, it is used to supply power to the flag master and equipment to ensure the normal display of traffic signals.
Aerospace:
In aviation and aerospace, the power interface board can be used in the control system of aircraft and spacecraft to provide stable and reliable power support.
It is suitable for land initiatives, oilfield equipment and other categories, providing power support for various land engineering equipment.
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