The AB SPAU330 C1-AA is a Voltage Relay designed for overvoltage, undervoltage, and residual voltage protection. It provides reliable supervision of substation busbar voltages, transformers, motors, capacitor banks, and distribution networks.

Technical Specifications

• Model Number: SPAU330 C1-AA

• Type: Voltage Relay

• Manufacturer: ABB

• Application: Overvoltage, undervoltage, and residual voltage protection

• Operating Frequency: 50Hz

• Power Supply Voltage: 80-265 V DC/AC

• Fault Event Recording: Digital disturbance recorder module (optional)

• Communication Interface: Serial interface for two-way data communication

• Self-Supervision: Continuous hardware and software monitoring with auto-diagnosis

• Housing Material: Robust aluminum case

• Ingress Protection: IP54 (dust and water-resistant)

• Weight: 6.3 kg

Product Features

• SPAU330 C1-AA supervises substation busbar voltages, ensuring reliable protection for equipment.

• The relay monitors overvoltage, undervoltage, and residual voltage.

• An optional disturbance recorder module allows verification of protection relay operation and analysis of network quantities.

• The relay communicates with substation equipment via a fiber-optic bus and a serial interface.

• Continuous self-supervision of hardware and software enhances system reliability and availability.