ABB
ABB REF 543 Feeder Terminal
In stock, ready to ship
Manufacturer: ABB
Product No.: REF 543
Product Type: Feeder Terminal
Product Origin: USA
Payment: T/T
Weight: 760g
Shipping port: Xiamen
Warranty: 12 months
Yes, we provide a 30-day money-back guarantee for all purchases.
Yes, all items come with a 12-month warranty from the date of shipment.
The REF 543 Feeder Terminal is a versatile protection relay that can be used with various types of switchgear, including:
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Single busbar systems
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Double busbar systems
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Duplex systems
It supports different types of networks, such as:
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Isolated neutral networks
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Resonant-earthed networks
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Partially earthed networks
The REF 543 is also designed for medium-sized three-phase asynchronous motors and for the protection and control of shunt capacitor banks used in reactive power compensation.
In addition to its core protection functions, the REF 543 offers a wide range of advanced capabilities, including:
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Measurement
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Control
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Condition monitoring
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General protection functions
It is equipped with extensive PLC (Programmable Logic Controller) functions, allowing it to integrate several automation and sequence logic functions necessary for substation automation into one unit.
Communication and Automation Features
The REF 543 offers comprehensive data communication capabilities, supporting the following communication standards:
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SPA Bus
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LON Bus
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IEC 60870-5-103
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IEC 61850 (via SPA-ZC 400 adapter)
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Profibus DPV1 (via SPA-ZC 302)
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DNP 3.0
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Modbus (for communication with higher-level equipment)
Additionally, the LON Bus communication, combined with PLC functions, minimizes the need for hardwiring between the feeder terminals, enhancing flexibility and ease of installation.
Scope
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Feeder Protection Relay
Product Benefits
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Protection functions for various types of power networks
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Programmable logic functions (PLC) for automation tasks
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Broad support for multiple communication protocols
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Optical communication for disturbance-free, fast communication
Product Features
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Voltage and Current Measurement: Using conventional measuring transformers, current sensors, and voltage dividers.
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Fault Locator: Detects short circuits in all types of networks.
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IEC 61850 Support: Via the SPA-ZC 400 adapter.
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Input/Output: 25 binary inputs and 18 output relays.