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ABB RET650 Transformer Protection and Control Relay

The ABBRET650represents a pinnacle in sub-transmission transformer protection within the globally trusted Relion® family. It is meticulously designed for applications where high-speed, dependable operation is mandatory. The IED features an advanced numerical processing core that executes multi-element protection algorithms simultaneously. It effectively bridges the gap between classic protection paradigms and modern, digitized substation automation networks. With integrated cyber security controls and an intuitive graphical Local Human-Machine Interface (LHMI), the RET650 is an essential asset for safeguarding capital-intensive power transformers.

• Pre-Configured Simplicity: Comes with factory-tested configurations that drastically cut down project execution schedules and engineering risks.

• High Sensitivity & Speed: Employs a state-of-the-art multi-slope transformer differential protection algorithm with sensitive second and fifth harmonic restraint features to prevent false trips during inrush currents.

• Comprehensive Back-up Protection: Integrates a full suite of protection blocks including negative sequence overcurrent, thermal overload , directional/non-directional overcurrent , and overexcitation  protections.

• Native IEC 61850 Support: Built natively on the IEC 61850 standard (Edition 1 and 2), supporting high-speed GOOSE messaging and sampled values for future-proof smart grid readiness.

• Integrated Cyber Security: Features secure communication access, role-based user authentication (RBAC), and deep event logging for NERC-CIP compliance. 

The RET650 is uniquely optimized for critical nodes across utility, industrial, and infrastructure power networks:

• Utility Substations: Serving as primary or back-up protection for power distribution and sub-transmission step-down transformers.

• Renewable Energy Plants: Protecting collector substation step-up transformers in utility-scale wind farms and solar arrays.

• Heavy Industrial Facilities: Ensuring protection for capital-intensive arc furnace transformers, refinery distribution units, and chemical plant infrastructure.

• Generator-Transformer Blocks: Operating seamlessly as a comprehensive unit protection device for small-to-medium thermal and hydro generation units.

Q1: What software tool is required to configure and program the ABB RET650?A: The RET650 is fully configured, engineered, and maintained using ABB’s PCM600 (Protection and Control IED Manager) software platform. PCM600 manages configuration files, logic setup via CAP 505 tools, and parameter tuning.

Q2: Does the RET650 support CT disturbance recording and fault analysis?A: Yes. The RET650 features a highly advanced, built-in disturbance recorder that captures up to 40 analog channels and 128 binary signals at a high sampling rate. Disturbance data is exported in the standard industry COMTRADE format for seamless analytical evaluation.

Q3: What is the main structural difference between the RET650 and the larger RET670 model?A: The RET650 belongs to the 650 series, offering pre-configured, streamlined setups for two-winding applications with mid-range I/O density. The RET670 offers completely open, customizable architecture, higher terminal densities, and supports complex multi-winding (three-winding or more) transformer protection configurations.

 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.