ABB REG150 Protective Relay

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Product Overview

The ABB REG150 is a high-performance Protective Relay used for voltage, current, overload, and fault protection in power systems. It monitors the electrical network in real time and quickly disconnects faulty circuits to ensure safe and stable operation. The REG150 is suitable for substations, distribution networks, and industrial power systems.

Technical Specifications

• Model / Part Number: REG150

• Type: Digital Protective Relay

• Protection Functions: Overcurrent, over/under voltage, short circuit, ground fault, phase sequence protection

• Input Voltage: 100–240 V AC/DC

• Input Current: 1 A / 5 A (CT input)

• Measurement Accuracy: ±0.5%

• Trip Time: Typical ≤ 30 ms

• Communication Interface: Modbus RTU, RS485

• Operating Temperature: -20°C ~ +60°C

• Protection Rating: IP20

• Mounting: Panel mount, DIN rail compatible

• Dimensions: H 90 mm × W 90 mm × D 100 mm

• Weight: ~0.5 kg

• Safety Certification: IEC 60255 compliant

Advantages & Features

1. Multi-Function Protection: Provides overcurrent, over/under voltage, short circuit, and ground fault protection.

2. Fast Response: Short trip time ensures rapid disconnection of faulty circuits.

3. Digital Monitoring: Real-time measurement of current, voltage, and power parameters.

4. Communication Ready: Supports Modbus RTU for remote monitoring and SCADA integration.

5. Easy Installation: Panel-mounted design suitable for DIN rail, simplifying on-site maintenance.

6. High Reliability: IEC-compliant design for long-term industrial operation.

Application Areas

• Distribution system protection

• Industrial power networks

• Substation electrical protection

• Motor protection and control systems

• Energy management and monitoring systems

Precautions

1. Ensure the relay voltage and current ratings match the system.

2. Install in a dry, ventilated environment; avoid high temperature, humidity, or corrosive conditions.

3. Ensure proper CT/PT connections to avoid wiring errors.

4. Regularly check relay status and test trip functionality.

5. Follow electrical safety procedures to prevent operational errors.

The structure and details of the product：

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