REF545KC133AAAA | ABB | Feeder terminal | REF545KC133AAAA

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REF545KC133AAAA | ABB | Feeder terminal | REF545KC133AAAA

¥1,365.00

Description


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  REF545KC133AAAA Other names:

Microcomputer intermediate protection REF545KC133AAAA

REF545KC133AAAA Voltage Controller

PLC controller REF545KC133AAAA

ABB feeder terminal REF545KC133AAAA is an electrical equipment that integrates multiple functions for power protection and control, used in medium voltage distribution systems (especially digital substations). These terminals are part of ABB’s protective relay services, designed to handle various functions related to power system protection and control.

  The following is a detailed analysis of the product:

  Product Overview

REF545KC133AAAA feeder terminal is a product produced by ABB for use in PLC system relay protection devices. It is designed specifically for medium voltage power grids and provides fast, selective protection, monitoring, and control functions. It is suitable for equipment such as two winding and three winding transformers, autotransformers, power generation transformer groups, phase-shifting transformers, dedicated railway transformers, and parallel reactors.


  Main functions

  Protection function:

Differential protection: It has a fast differential protection function with adjustable CT ratio and phase shift compensation, suitable for differential applications with multiple circuit breaker arrangements, and can effectively avoid excitation inrush current tripping and overexcitation tripping.

Ground fault protection: Provides low impedance limiting ground fault protection function as a supplement to sensitive and fast main protection to prevent winding ground faults.

Overcurrent protection: multifunctional phase, grounding, positive, negative, and zero sequence overcurrent functions that can selectively perform directional and/or voltage control.

Thermal overload protection: Provides thermal overload protection with two time constants, as well as over/under voltage and over/under frequency protection.

  Monitoring function:

Real time monitoring of parameters such as phase current, line voltage and phase voltage, zero sequence current and zero sequence voltage, frequency, power factor, active and reactive power, and electrical energy.

Built in interference and event recorders to record device status and operational data for post fault analysis.RET670(1)

  Control function:

Complete control and interlocking functions, including synchronous inspection function, allowing integration of main control and/or local backup control.

Advanced logic functions, user logic can be prepared using graphical tools, supporting special applications such as automatic disconnection of isolation switches in multi circuit breaker arrangements, closure of circuit breaker loops, load transfer logic, etc.

  Communication function:

Supports multiple communication standards, such as SPA bus protocol, LON bus protocol, IEC 60870-5-103 protocol, IEC 61850 (supported through SPA-ZC 400), Profibus DPV1 protocol (supported through SPA-ZC 302), DNP 3.0, and Modbus communication protocol.

The combination of LON communication protocol and PLC function reduces the need for hard wiring between feeder terminals.RET670(2)

  Technical features

High flexibility: The programmable function of PLC allows users to flexibly configure according to their actual needs.

High stability: Binary inputs are very stable in terms of anti-interference, preventing erroneous operations in situations such as DC system capacitor discharge or DC grounding faults.

Wide applicability: It can be combined with various switch devices and supports multiple types of power grids, such as neutral ungrounded networks, arc suppression coil grounded networks, and partially grounded networks.

  Application Cases

REF545KC133AAAA feeder terminals are widely used in substations, power plants, industrial buildings, and other places, providing important guarantees for the stable operation of power systems.

In summary, ABB feeder terminal REF545KC133AAAA is a powerful and stable power protection and control device that can meet various protection, monitoring, and control needs of medium voltage power grids.


       All products on this website are special products, and market prices have been fluctuating,

  Please refer to the customer service quotation for details, as the product is new and the price is not genuine,

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

  The new one is for sale, please contact customer service for further communication.


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