ABB REF610C11HCNN01 Comprehensive Protection Relay

• Current Input: Supports multiple current transformers (CTs) for accurate measurement of phase and ground currents.
• Analog Inputs: 12 channels for voltage and current inputs, with 2 additional virtual channels for zero-sequence current and residual voltage calculations.
• Switch Inputs: Voltage-controlled and optically isolated, ensuring reliable signal detection and isolation from the primary circuit.
• Switch Outputs: Multiple relay outputs for controlling circuit breakers, isolators, and other switching devices.
• Communication Interfaces: Supports protocols such as IEC 61850, Modbus, and DNP3, enabling seamless integration into substation automation systems.
• Display: Large graphical LCD for local monitoring and configuration, with the option to separate the display from the main unit for flexible installation.
• Environmental Tolerance: Designed to operate reliably in harsh industrial environments with a wide temperature range and high resistance to vibration and electromagnetic interference.

Functional Characteristics

• Multifunctional Protection:
  • Provides comprehensive protection functions, including overcurrent protection, overvoltage protection, undervoltage protection, over-frequency protection, overload protection, and earth fault protection.
  • Supports three-phase non-directional overcurrent protection with定时 (definite time) or IDMT (inverse definite minimum time) characteristics.
  • Includes non-directional ground fault protection with adjustable settings for different fault conditions.
• Advanced Control Features:
  • Enables local and remote control of circuit breakers and isolators, with synchronous checking for parallel operation.
  • Supports auto-reclosing functionality for automatic clearance of temporary faults on overhead lines.
  • Includes断路器故障保护 (circuit breaker failure protection) to ensure reliable operation in case of breaker malfunction.
• Precise Measurement Capabilities:
  • Measures phase currents, line and phase voltages, zero-sequence currents and voltages, frequency, power factor, active and reactive power, and energy consumption.
  • Provides accurate and reliable data for system monitoring and analysis.
• Extensive Monitoring Functions:
  • Monitors breaker status, trip circuit status, and fuse health to ensure system integrity.
  • Performs internal self-tests to detect and report any device malfunctions.
  • Logs events and faults for post-analysis and fault diagnosis.
• Event Recording and Analysis:
  • Equipped with an event recorder capable of capturing 16 current or voltage waveforms and 16 logic switch signals.
  • Adjustable recording length based on the number of analog inputs, with non-volatile memory for storing event data.
• Programmable Logic Control (PLC):
  • Offers extensive PLC capabilities for integrating automation and sequential logic control functions.
  • Supports custom logic programming to meet specific application requirements.

Application Scenarios

• Feeder Protection:
  • Used in medium-voltage feeder circuits for protection against overcurrent, earth faults, and other abnormal conditions.
  • Suitable for distribution switchgear in single-bus, double-bus, and double-switch configurations.
• Motor Protection:
  • Protects medium-sized three-phase asynchronous motors from overcurrent, thermal overload, and other faults.
  • Ensures safe and reliable operation of motors in industrial applications.
• Capacitor Bank Control:
  • Controls and protects reactive power compensation shunt capacitor banks, enhancing power quality and system efficiency.
  • Manages capacitor bank switching to optimize reactive power flow.
• Substation Automation:
  • Integral part of substation automation systems for utilities, facilitating seamless communication and coordination between different components.
  • Supports various communication protocols for integration into ABB or third-party automation systems.
• Industrial Automation:
  • Applied in manufacturing, petrochemical, and metallurgical industries where reliable power distribution and motor control are critical.
  • Enhances system reliability and reduces downtime through comprehensive protection and monitoring functions.