This main line protection relay provides basic protection for busbars and feeders in public substations and industrial distribution systems. It is designed to protect the main lines in public substations and industrial distribution systems. It integrates protection, control, measurement and monitoring functions in one, suitable for the protection needs of medium voltage power grids. It is suitable for public substations, industrial distribution systems and the protection of large and medium-sized three-phase AC motors. Its high accuracy, programmability, user-friendly human-machine interface, safety and durability make it an indispensable and important part of the power system.

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　　RET670 Other names:

　　Microcomputer terminal protection RET670

　　RET670 relay protection device

　　Voltage protection device RET670

　　RET670 is a main line protection relay that provides basic protection for busbars and feeders in public substations and industrial distribution systems. Designed to provide protection for main lines in public substations and industrial distribution systems. It integrates protection, control, measurement and monitoring functions in one, and is suitable for the protection needs of medium-voltage power grids. Suitable for protection of public substations, industrial distribution systems, and large and medium-sized three-phase AC motors. Its high accuracy, programmability, user-friendly human-machine interface, safety and durability make it an indispensable and important part of the power system.

　　Main Applications

　　RET670 is designed for protection, control, measurement and monitoring in medium voltage power grids.

　　The relay is also used for the protection of large and medium-sized three-phase AC motors in circuit breaker control motor drives.

　　Typical applications include incoming and outgoing feeders and motor feeders as well as substation protection.

　　It can be used as backup protection for power transformers and backup protection for high-voltage line protection relays.

　　Technical Features

　　Multi-function protection: The relay has comprehensive protection functions and can cope with various line faults.

　　Additional functions: In addition to basic protection functions, extended measurement functions, monitoring and control functions are also provided.

　　Prefabricated standard configuration: With prefabricated standard configuration, the device can be used for different types of networks, including input and output feeders in radially isolated neutral, resonant grounding, solid grounding and resistance grounding systems.

　　High accuracy and efficiency:

　　Adopt advanced protection algorithms and measurement technologies to ensure the accuracy and reliability of protection.

　　Provide efficient fault detection and response capabilities, effectively shortening fault recovery time.

　　Programmable and flexible:

　　The relay has programmable functions and can be set and adjusted according to actual needs.

　　Provide a variety of configuration options for different types of networks and application scenarios.

　　Safety and durability:

　　Comply with international safety standards and specifications to ensure the safety and reliability of the product.

　　Made with high-quality materials and processes, it has good durability and service life.

　　Human-machine interface: includes an LCD display with different views for easy local use and notifies users through prompt information. It is also equipped with buttons for navigation, clear/cancel and input, as well as security functions such as language selection and password protection.

　　Main line protection of power system: It is specially designed for relays that protect important lines in power systems. These lines are responsible for transmitting electrical energy from power plants to various electrical equipment.

　　Fault detection and protection: It can monitor and detect the operating status of the main lines. It can take timely measures when abnormal conditions or faults are found.

　　Functional protection: Contains multiple protection functions such as overcurrent protection, short circuit protection and ground fault protection. Adapt to the protection needs of different scenarios.

　　Quick request: When an overcurrent condition is detected, the circuit can be quickly cut off. Avoid the expansion of the fault and cause greater losses.

　　Communication capability: It may have communication interfaces such as dismantling. Support data exchange and remote monitoring with other devices or monitoring systems.

　　High reliability: It can operate stably for a long time under the environmental conditions of the life cycle. Ensure the reliability and safety of the power system.

　　Intelligent control: Intelligent algorithms can be used to automatically identify the working status of the power system. Make corresponding protection and control decisions according to real-time conditions.

　　Modular design: Adopt priority design, focus on installation, maintenance and upgrade. Improve the flexibility and scalability of the product.

　　Product advantages

　　High efficiency: It can respond quickly to line faults and ensure the stable operation of the power system.

　　Safety: It adopts advanced safety technology to provide comprehensive protection to prevent line faults from causing harm to equipment and personnel.

　　Reliability: After strict quality control and testing, the stability and reliability of the product are ensured.

　　Modern technology: Both hardware and software solutions use modern technology to ensure the advancement and reliability of the product.

　　Flexible configuration: With prefabricated standard configurations, the device can be used for different types of networks, such as radially isolated neutral, resonant grounding, solid grounding, and resistance grounding systems.

　　Additional functions: Provides extended measurement functions, monitoring and control functions, and connectivity to provide more comprehensive protection and management for the power grid.

　　Application scope

　　RET670 is suitable for power systems of all sizes, including industrial distribution systems, substations, etc.

　　Particularly suitable for application scenarios that require high reliability and stability, such as critical infrastructure, data centers, etc.

　　Incoming and outgoing feeder protection: used for incoming and outgoing feeder protection in substations and distribution systems to ensure the safety and stability of power transmission.

　　Motor protection: suitable for the protection of large and medium-sized three-phase AC motors to prevent motors from being damaged by overload, short circuit and other faults.

　　Transformer backup protection: as backup protection for power transformers, it improves the reliability and safety of the power system.

　　Public substations and industrial distribution systems: protect busbars and feeders from fault damage. Monitor the status of the power grid to ensure the stable operation of the power grid.

　　Large and medium-sized three-phase AC motor protection: Provide comprehensive motor protection, including overload, short circuit, ground fault, etc. Extend the service life of the motor and improve equipment reliability.

　　Other application scenarios: Suitable for various industrial and power systems that require efficient and reliable line protection. It can be used as an important part of the power system to improve the safety and stability of the entire system.

　　All products on this website are special products, and the market price has been fluctuating.

　　Specific quotation shall be subject to customer service, because the product is a new product, the price is not real,

　　Please confirm the model and product, price and other detailed information with customer service before placing an order. The website has been used.

　　New ones are on sale, please contact customer service for communication.

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