7SJ6005-6EA00-0DA0/BB | Siemens Overcurrent Protection Module

Description 

The Siemens 7SJ6005-6EA00-0DA0/BB is an overcurrent protection relay from the SIPROTEC 7SJ600 series, designed for medium and high-voltage power systems. It provides reliable protection against phase and ground faults, featuring programmable logic, communication interfaces, and advanced monitoring functions.

Technical Specifications 

Information About 7SJ6005-6EA00-0DA0/BB

The Siemens 7SJ6005-6EA00-0DA0/BB is a numerical overcurrent-time protection relay from the SIPROTEC 7SJ600 series, engineered for safeguarding electrical power systems against overcurrent conditions. This relay offers comprehensive protection features suitable for various applications, including feeder protection, motor protection, and as backup protection for transformers and generators.

Key Specifications:

• Model Number: 7SJ6005-6EA00-0DA0/BB
• Rated Current: 5A
• Frequency: 50/60 Hz
• Binary Input Voltage: 24 to 250V
• Auxiliary Voltage: 230V AC
• Communication Interface: Isolated RS485
• Mounting: 7XP20 case suitable for panel flush mounting or cubicle mounting
• Operator Languages: English, German, Spanish, and French

Key Features:

• Comprehensive Protection Functions:

  • Overcurrent Protection: Definite-time and inverse-time characteristics for phase and ground faults.
  • Overload Protection: Monitors thermal conditions to prevent equipment overheating.
  • Unbalanced Load Protection: Detects and responds to phase imbalances.
  • Negative Sequence Protection: Identifies asymmetrical load conditions.
  • Cold Load Pickup: Manages inrush currents during system restoration.
  • Auto-Reclosure (Optional): Facilitates automatic reclosing after transient faults.
  • Trip Circuit Supervision: Ensures the integrity of the trip circuit.

• Advanced Monitoring and Control:

  • Operational Measurement Values: Real-time monitoring of current parameters.
  • Fault Event Logging: Records events with time stamps for post-event analysis.
  • Oscillographic Fault Records: Captures waveform data for detailed fault analysis.
  • Continuous Self-Monitoring: Ensures reliable operation through internal diagnostics.

• Communication Capabilities:

  • RS485 Interface: Facilitates integration with SCADA systems and other communication networks.
  • IEC 60870-5-103 Protocol: Supports standardized communication for substation automation.

Applications:

• Feeder Protection: Safeguards distribution lines against overcurrent and fault conditions.
• Motor Protection: Protects motors from overcurrent, overload, and unbalanced load conditions.
• Transformer and Generator Backup Protection: Serves as a secondary protective device for transformers and generators.