Multilin L9OTB5HLHF8LH6 Line Differential Relay

Multilin L9OTB5HLHF8LH6 Line Differential Relay

Product Details Introduction

The Multilin L90 is an advanced differential protection relay designed for the protection and control of high-voltage transmission lines. The model L9OTB5HLHF8LH6 represents the specific configuration and functional options of the relay.

Product Overview

Model: L90 L9OTB5HLHF8LH6

Brand: Multilin

Product type: Line differential protection relay

Application field: Protection and control of high-voltage transmission lines

major function 

Line differential protection:

Provide high-sensitivity differential protection, detect and isolate faults in the circuit, and prevent the expansion of faults.

Adopting phase compensation technology to adapt to different system topologies and operating conditions.

Overcurrent protection:

Provide overcurrent protection for phase to phase, grounding, and neutral wires.

Support multiple time current characteristic curves (such as IEC and ANSI standards) to meet different protection requirements.

Distance protection:

Provide distance protection function to quickly and accurately locate and isolate faults.

Support multi segment protection and multiple measurement methods.

Circuit breaker failure protection:

Provide circuit breaker failure protection function to quickly isolate the fault area when the circuit breaker cannot operate normally.

Automatic reclosing function:

Support automatic reclosing function to quickly restore power supply after transient faults.

Event and fault records:

Record detailed event and fault information for easy fault analysis and system maintenance.

Communication function:

Supports multiple communication protocols, such as Modbus, DNP3, and IEC 61850, for data communication and remote monitoring through RS485 or Ethernet interfaces.

technical specifications

Power supply voltage: Multiple power supply options, commonly including 24VDC, 48VDC, and 110VDC.

Input voltage range: Suitable for different voltage levels of the power grid.

Protection function: Supports line differential protection, overcurrent protection, distance protection, circuit breaker failure protection, etc.

Output contacts: Provide multiple output contacts for controlling circuit breakers and other devices.

Communication interface: Supports RS485 and Ethernet interfaces, compatible with multiple industrial communication protocols.

Environmental adaptability: Designed for industrial environments, capable of stable operation under a wide temperature range and high humidity conditions.

Installation method: Supports panel installation and DIN rail installation for easy installation and maintenance.

application area 

Transmission and distribution system protection: used for differential protection of high-voltage transmission lines to ensure the safe operation of the system.

Industrial power system protection: Protecting key equipment and lines in the industrial power system to ensure the stability of the production process.

Power facility protection: Provide protection and monitoring functions in power plants, substations, and other power facilities.

Installation and maintenance

Installation:

Location: Installed inside the distribution cabinet or control cabinet, connected to the protected equipment and system.

Method: Supports panel installation and DIN rail installation to ensure easy and secure installation.

maintain:

Regular inspection: Regularly check the connection and operation status of the relay to ensure its normal operation.

Firmware update: Perform firmware updates as needed to enhance functionality and performance.

Fault diagnosis: Utilize the diagnostic function of relays to promptly identify and solve potential problems.

advantage

High reliability: Provides high sensitivity and high reliability protection functions to ensure the safe operation of the power system.

Flexibility: Supports multiple protection functions and communication protocols to adapt to different application requirements.

Data recording: Provide detailed event and fault records for easy analysis and maintenance.

High integration: seamlessly integrated with other Multilin protection devices to form a complete protection and control solution.

summary

The Multilin L90 L9OTB5HLHF8LH6 line differential relay is a high-performance power system protection device that provides comprehensive protection, control, and monitoring functions. Its reliable performance and flexible application options make it an ideal choice in the field of high-voltage transmission line protection.

Product image

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