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The ABB REF615C-D is a numerical feeder protection and control relay from ABB’s Relion® 615 series, designed for medium-voltage distribution systems. The ABB REF615C-D integrates protection, control, measurement, and monitoring functions into a single intelligent device used in substations and industrial power networks.

The ABB REF615C-D is suitable for protecting overhead lines and cable feeders in radial, looped, and meshed networks. It supports modern digital substations with advanced communication protocols and flexible configuration capabilities, making the ABB REF615C-D a key component in smart grid and industrial power systems.

In a medium-voltage distribution substation, the ABB REF615C-D is installed in a feeder panel to monitor and protect outgoing lines.

When a fault such as overcurrent or earth fault occurs, the ABB REF615C-D detects abnormal electrical conditions via CT/VT inputs and immediately sends a trip signal to the circuit breaker. This isolates the faulty section while keeping the rest of the network operational.

Additionally, the ABB REF615C-D can transmit real-time data, alarms, and event logs to SCADA or substation automation systems, improving system visibility and response speed.

The ABB REF615C-D offers comprehensive protection features:

Overcurrent protection (50/51)

Earth-fault protection (50N/51N)

Directional protection (67)

Voltage and frequency protection

Breaker failure protection (50BF)

Arc flash protection (optional)

Auto-reclosing and fault location

These functions ensure fast and selective fault isolation in distribution networks.

Power Supply Setup

Provide the required auxiliary voltage to the ABB REF615C-D.

Signal Wiring

Connect CT, VT, and binary I/O signals to the ABB REF615C-D.

Communication Configuration

Set up Ethernet or serial communication for SCADA integration.

Parameter Setting

Configure protection settings and logic using ABB engineering tools (e.g., PCM600).

Testing and Commissioning

Perform functional tests to verify correct operation of the ABB REF615C-D.

Disconnect all power before installing the ABB REF615C-D.

Ensure correct CT/VT polarity and wiring.

Install the ABB REF615C-D in a clean, ventilated switchgear panel.

Use shielded communication cables to avoid interference.

Verify all protection parameters before commissioning.

Inspection: Check the ABB REF615C-D for loose wiring or damage.

Event Logs: Regularly review disturbance and fault records.

Communication Check: Ensure stable SCADA/network communication.

Functional Testing: Periodically test protection and trip functions.

Firmware Updates: Keep the ABB REF615C-D updated for optimal performance.

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.