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Ge L90UD9HEHF8LH6LL8LN6CSXXUXXW7J
Product Overview
Ge L90UD9HEHF8LH6LL8LN6CSXXUXXW7J belongs to the GE Multilin L90 series, an advanced line current differential protection system. Designed specifically for the protection of lines and busbars in power systems, this device can quickly and accurately detect fault currents and trigger protection actions, thereby ensuring the safe operation of the power grid.
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Specifications & Product Features
Specifications
- Model: L90UD9HEHF8LH6LL8LN6CSXXUXXW7J
- System Architecture: Equipped with RS485 or 100BASE-FX communication interface
- Voltage Level: Compatible with 125V/250V AC or DC systems
- Power Supply Voltage: Common 12V or 24V power supply (depending on specific configuration)
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Product Features
- High Sensitivity & Fast Response: Adopts advanced digital signal processing technology to achieve rapid detection of transient faults.
- Modular Design: Features a modular structure, easy to install, debug and maintain, supporting Hot Standby function.
- Multifunctional Protection: In addition to basic line differential protection, it can be configured with additional functions such as zero-sequence current protection and overload protection.
- Strong Programmability: Parameter setting and logic programming can be performed through dedicated software (such as Multilin/Micro+).
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Structure & Composition
- Printed Circuit Board (PCB): The core control and processing module, responsible for signal collection, processing and communication.
- Relay Module: The physical switching component that executes protection actions.
- Communication Module: Realizes data exchange with upper computers or other protection devices.
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Application Fields
- Power Transmission and Distribution Systems: Mainly used for the protection of transmission lines and busbars in power stations and substations.
- Industrial Power Distribution: Protection of power distribution networks in large factories or facilities.
- Railway Traction Power Supply: Used to protect the transmission lines of railway power supply systems.
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Installation & Maintenance
Installation
It is recommended to install in a well-ventilated cabinet, ensure an appropriate distance from other equipment to avoid electromagnetic interference.
Wiring
Follow IEC standards or the original manual for Current Transformer (CT) wiring to ensure correct phase sequence.
Maintenance
- Regularly check the wear of relay contacts.
- Regularly calibrate Current Transformers (CT) and Voltage Transformers (VT) to ensure accurate measurement.
- Regularly update firmware and check fault record logs through dedicated software (such as Multilin/Micro+).
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Main brand
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