ABB RET521 (1MRK001530-AE) Transformer Protection Terminal

Product Description

The ABB RET521 Transformer Protection Terminal (1MRK001530-AE) is a multifaceted and dependable option for safeguarding and managing transformers in both industrial and utility settings. As a component of ABB's Relion® series, it provides advanced capabilities for overseeing, protecting, and regulating power transformers. Its design prioritizes operational security and productivity, making it adaptable to diverse transformer setups and challenging conditions.

Technical Specifications

• Type Designation: RET521

• Product ID: 1MRK001530-AE

• Dimensions: 329 mm x 260 mm x 270 mm

• Weight: 5 kg

• Protection Functions:

  • Differential protection for transformers.

  • Overcurrent and earth fault protection.

  • Voltage and frequency protection.

• Control Features:

  • Integrated voltage regulation for on-load tap changers.

  • Trip circuit supervision.

• Environmental Specifications:

  • Operating Temperature: -25°C to +55°C.

  • Humidity: 5% to 95% non-condensing.

• Compliance: Meets IEC standards for electromagnetic compatibility and safety.