ABB RET545 Transformer Protection Terminal

ABB RET545 Transformer Protection Terminal Supplier and Exporter in India

ABB RET545 Legacy Spare and Replacement Enquiries

ABB RET545 is a legacy transformer protection and control terminal used for two-winding power transformers and generator-transformer units. ABB lists RET545 as not active since 2022. For price and availability, send the complete ABB order code, nameplate, quantity and destination country.

Description

ARP IMPEX supplies and exports ABB RET545 transformer protection terminals for power transformer protection, substations and existing RET54x installations.

RET545 is part of ABB’s RET54x transformer terminal family. It combines transformer protection, control, measurement and supervision in one unit and is mainly used with two-winding power transformers and generator-transformer blocks.

Depending on the original configuration, RET545 can provide transformer differential protection, overcurrent protection, earth-fault protection, restricted earth-fault protection, thermal overload protection and phase-unbalance supervision. Versions with additional voltage, frequency, overexcitation and under-impedance functions were also available.

One of the main differences between RET545 and RET541/RET543 is its larger input/output capacity. ABB specifies 34 binary inputs and 26 output relays for RET545, giving it more points for transformer control, indications, alarms and interlocking.

ABB supplied RET545 in different hardware and functionality versions. For ABB RET545 price, legacy spare availability or replacement enquiries, send us the complete part number and a clear photograph of the existing terminal nameplate.

Technical Specifications

• Brand: ABB
• Series: RET54x / RE500
• Model: RET545
• Product type: Transformer protection and control terminal
• Product status: Legacy / not active since 2022
• Main application: Two-winding transformer protection
• Generator-transformer protection: Supported
• Binary inputs: 34
• Output relays: 26
• Transformer differential protection: Available
• Restricted earth-fault protection: Available
• Overcurrent and earth-fault protection: Available
• Thermal overload protection: Available
• Voltage and frequency protection: Depending on configuration
• Automatic voltage regulation: Available on applicable versions
• Communication: SPA, LON, IEC 60870-5-103, Modbus, DNP 3.0 and other supported arrangements

The exact protection and control functions should be checked from the installed RET545 configuration rather than assumed from the model name alone.

Features

• Transformer differential protection
• Restricted earth-fault protection
• Backup overcurrent protection
• Earth-fault protection
• Thermal overload protection
• Phase-unbalance supervision
• Voltage and frequency protection on applicable versions
• Transformer overexcitation protection
• Circuit-breaker control
• Transformer measurement and supervision
• Programmable control and interlocking
• Large number of binary inputs and outputs
• Local operating display
• Communication with substation systems
• Automatic tap-changer voltage regulation on applicable versions

For an ABB RET545 enquiry, the complete part code, nameplate, quantity and destination country are normally enough to start checking availability.

Applications

ABB RET545 is used for:

• Two-winding power transformer protection
• Transformer differential protection
• Generator-transformer units
• Restricted earth-fault protection
• Transformer backup protection
• Transformer thermal overload protection
• Utility substations
• Power plants
• Industrial power distribution
• Transformer protection panels
• On-load tap-changer control
• Heavy industrial installations
• Marine power systems
• Offshore electrical systems
• Existing ABB RET54x installations

ABB documents the RET54x range for two-winding transformers and generator-transformer blocks, including applications in heavy industry, marine and offshore environments.

ABB RET54x Transformer Terminal Family

The ABB RET54x family includes RET541, RET543 and RET545. All three use the same general transformer protection and control platform, but their available I/O capacity differs.

ABB RET541

RET541 is the lower-I/O model with 15 digital inputs.

ABB RET543

RET543 provides 25 digital inputs and more output capacity than RET541.

ABB RET545

RET545 is the higher-I/O version with:

• 34 digital inputs
• 26 output relays

It is suitable where the transformer panel has more control, alarm, indication and interlocking signals.

RET541, RET543 and RET545 belong to the same family, but the installed model, hardware and configuration should be checked before sourcing a matching unit.

ABB RET545 Legacy Spare and Replacement Availability

ABB RET545 is no longer an active product. ARP IMPEX can assist with:

• ABB RET545 part-code checking
• Existing terminal nameplate matching
• RET545 legacy spare enquiries
• RET541 / RET543 / RET545 requirements
• Transformer protection terminal enquiries
• Single and multiple quantities
• ABB technical documentation
• Export packing
• International shipping

For an ABB RET545 replacement or spare enquiry, please send:

• Complete ABB RET545 order code
• Clear nameplate photograph
• Hardware/software revision, if available
• Quantity required
• Destination country
• Required delivery date

Why Buy ABB RET545 from ARP IMPEX?

ARP IMPEX supplies ABB protection relays and terminals to power plants, utilities, EPC contractors, industrial companies, transformer manufacturers, panel builders, maintenance companies and electrical traders.

We can assist with:

• Part-number identification
• RET545 legacy spare checking
• Existing-unit matching
• Single-piece and bulk quotations
• Export packing
• International shipment

Request a Quote for ABB RET545

For ABB RET545 price and availability, send:

• Complete RET545 part/order number
• Clear nameplate photograph
• Quantity
• Destination country
• Required delivery date

If the complete order code is not readable, send clear photographs of the terminal front and nameplate.

Send your ABB RET545 part code, quantity and destination country to ARP IMPEX for availability and export quotation.