GE 369-HI-R-M-F-E-H-E General Electric Multilin 369 Series
GE 369-HI-R-M-F-E-H-E is a series of advanced microcomputer protection and measurement and control devices launched by General Electric (GE). These devices use internationally advanced DSP (digital signal processor) and surface mount technology, combined with flexible field bus (such as CAN) technology, to meet the requirements of different voltage levels of substations and realize the coordination, digitization and intelligence of substations.
Product Introduction
GE 369-HI-R-M-F-E-H-E series protection devices have comprehensive protection functions, including but not limited to:
Line protection: effectively protect power lines from short circuits, overloads and other faults.
Transformer protection: monitor and protect transformers to prevent damage caused by faults.
Capacitor protection: ensure the normal operation of capacitor banks and prevent overvoltage and overcurrent.
Motor protection: includes functions such as pre-trip alarm and over-torque correction to protect and control motors and their accompanying components3.
Measurement and control functions
This series of products provides precise measurement and control functions to ensure stable operation of the system:
Voltage and current monitoring: real-time monitoring of the voltage and current status of the power grid.
Power factor measurement: calculates and displays the power factor of the power system to help optimize the efficiency of power use.
Frequency monitoring: monitors the frequency of the power grid with high accuracy and resolution.
Fault recording and electricity collection
GE 369-HI-R-M-F-E-H-E can record key events and collect electricity:
Fault recording: record detailed data when the fault occurs, which is convenient for subsequent analysis and diagnosis.
Electricity collection: collect electricity usage data to support billing and management.
Low current grounding line selection and low frequency load reduction
When a low current grounding fault occurs, this series of devices can effectively select the line and automatically reduce the load in the low frequency condition:
Low current grounding line selection: accurately identify the grounding fault point and quickly take isolation measures.
Low frequency load reduction: automatically reduce the load when the system frequency is too low to prevent system crash.
Input and output interface
GE 369-HI-R-M-F-E-H-E provides a variety of input and output interfaces to meet the needs of different users:
Speed switch input: allows the use of external speed devices to distinguish between normal start and locked rotor conditions.
Waveform capture and digital counter: capture and record key electrical events.
Optional metering package
Some models are equipped with an optional metering package, providing more advanced functions:
Power metering parameters: including kW, kvar, kVA, kWh, etc.
Event recording capacity: record the last 512 key events for easy fault analysis and maintenance.
Design features and technical advantages
GE 369-HI-R-M-F-E-H-E adopts advanced design and technology to ensure product reliability and efficiency:
Unitized design: convenient for use with primary equipment, and can also be centralized or dispersed.
Fieldbus interface: supports multiple nodes to coordinate work, realize system-level management and comprehensive information sharing.
Flame retardant and corrosion-resistant shell: protects the internal circuit from harsh environment and extends product life.
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