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ABB RET620E-1G Protection and Control Relay

The relay integrates transformer differential protection, backup overcurrent protection, earth-fault protection, thermal overload monitoring, event recording, and automation functions into a single device. Its modular architecture enables flexible configuration for different transformer applications while simplifying engineering, commissioning, and maintenance.

As part of ABB's Relion® family, the RET620E-1G supports IEC 61850 communication, GOOSE messaging, Modbus, DNP3, and IEC 60870-5-103 protocols, making it suitable for advanced substation automation and SCADA integration. The relay also offers comprehensive disturbance recording and fault analysis capabilities, helping utilities improve network reliability and asset protection.

Advanced Transformer Differential Protection

Provides fast and selective protection against internal transformer faults.

Comprehensive Protection Functions

Supports differential, overcurrent, restricted earth-fault, thermal overload, and backup protection functions.

IEC 61850 Digital Substation Ready

Fully compatible with IEC 61850 communication standards and GOOSE messaging.

Integrated Monitoring and Diagnostics

Offers continuous transformer condition monitoring and self-diagnostic capabilities.

Modular and Flexible Design

Configurable for various transformer sizes and substation applications.

Disturbance Recording and Event Logging

Captures fault records and operational events for post-event analysis.

High Reliability

Designed for critical power system applications requiring continuous operation.

Power Utility Substations

Protection and control of transmission and distribution transformers.

Industrial Power Systems

Protection of critical transformers in manufacturing and process industries.

Renewable Energy Facilities

Transformer protection in wind farms, solar plants, and hydroelectric stations.

Oil & Gas Facilities

Reliable protection of power transformers supporting production operations.

Mining Operations

Electrical infrastructure protection in demanding environments.

Smart Grid and Digital Substations

Supports IEC 61850-based automation architectures and intelligent grid applications.

Q1: What is the ABB RET620E-1G used for?

A: The RET620E-1G is a transformer protection and control relay designed to protect, monitor, and control power transformers in utility and industrial power systems.

Q2: Which transformer types can it protect?

A: It is designed for two-winding and three-winding power transformers, including generator step-up transformers.

Q3: Does RET620E-1G support IEC 61850?

A: Yes. The relay supports IEC 61850 communication, GOOSE messaging, and modern substation automation requirements.

Q4: What software is used for configuration?

A: ABB PCM600 is used for engineering, configuration, monitoring, and diagnostics.

Q5: Can the relay integrate with SCADA systems?

A: Yes. It supports Modbus, DNP3, IEC 61850, and IEC 60870-5-103 protocols for SCADA and automation system integration.

Q6: What are the main benefits of RET620E-1G?

A: Comprehensive transformer protection, advanced communication capabilities, flexible configuration, fault recording, and enhanced power system reliability.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.