Product Overview

The ABB PCD231B101 (3BHE025541R0101) is a Multifunction Protection and Control Relay designed for power distribution networks and industrial electrical systems. Part of ABB’s Relion® product family, it provides advanced protection, monitoring, and control functions for feeders, motors, transformers, and other electrical assets. This device ensures operational safety, minimizes downtime, and enhances grid reliability through precise fault detection and adaptive logic.

Technical Specifications

Electrical Parameters

• Rated Voltage:
  • System Voltage: 100–690V AC (phase-to-phase).
  • Auxiliary Supply: 24–250V DC/AC (configurable).
• Current Inputs:
  • Rated Current: 1A or 5A (selectable).
  • Frequency Range: 45–65 Hz.
• Accuracy:
  • Current Measurement: ±1% of rated value.
  • Operating Time: <20 ms for protection functions.

Protection Functions

1. Overcurrent Protection (50/51, 50N/51N):
   • Phase and neutral overcurrent with inverse-time or definite-time characteristics.
2. Earth Fault Protection (50G/51G):
   • Sensitive ground fault detection for grounded or ungrounded systems.
3. Directional Overcurrent (67):
   • Detects fault direction in ring-main or parallel feeder networks.
4. Thermal Overload (49):
   • Motor protection based on thermal replica modeling.
5. Under/Overvoltage (27/59):
   • Monitors voltage stability and triggers alarms or trips.

Communication & Integration

• Communication Protocols:
  • IEC 61850 (Ed. 2) for substation automation.
  • Modbus RTU/TCP for SCADA and HMI integration.
  • DNP3.0 for utility-grade systems.
• Ports:
  • 2x Ethernet ports, RS-485, and USB for local configuration.
• Time Synchronization:
  • Supports IEEE 1588 PTP and IRIG-B for time-critical applications.

Mechanical & Environmental

• Housing:
  • Compact, IP40-rated, panel-mounted design.
  • Dimensions: 144 x 144 x 150 mm (W x H x D).
• Operating Conditions:
  • Temperature: -25°C to +70°C.
  • Humidity: 5–95% (non-condensing).
• Certifications:
  • IEC 60255, IEEE C37.90, CE, UL, and DNV-GL (marine compliance).

Key Features

1. Adaptive Protection Logic

   • Configurable protection curves and logic via PCM600 software.
   • Supports user-defined logic (CFC) for custom automation schemes.

2. Real-Time Monitoring & Diagnostics

   • Measures voltage, current, power, energy, harmonics, and power factor.
   • Event recorder with 1,000 time-stamped entries for fault analysis.

3. Cybersecurity

   • Role-based access control with password protection.
   • Secure communication via HTTPS, SSH, and VLAN tagging.

4. User Interface

   • Graphical LCD display with multilingual menus.
   • Front-panel LEDs for status indication and fault alerts.

5. Redundancy & Reliability

   • Hot-swappable design for maintenance without downtime.
   • Self-diagnostics for hardware and firmware health checks.

Applications

• Power Distribution: Protection of feeders, busbars, and transformers.
• Industrial Motors: Overload and phase-loss protection.
• Renewable Energy: Grid connection and fault management in solar/wind farms.
• Marine & Offshore: Electrical system protection in harsh environments.

Ordering Information

• Model: PCD231B101
• ABB Order Code: 3BHE025541R0101
• Accessories:
  • Mounting kits, communication cables, and CT/PT modules.

Configuration & Support

• Software Tools: Configure settings using ABB’s PCM600 or Relay Configuration Tool.
• Documentation: Refer to the PCD231B101 Technical Manual (3BHE025541R0101) for wiring diagrams and logic templates.
• Compliance: Meets IEC 61850-3 for electromagnetic compatibility (EMC) in substations.

The PCD231B101 3BHE025541R0101 combines versatility and robustness, making it ideal for safeguarding electrical infrastructure in diverse industries. For deployment-specific configurations, consult ABB’s technical support or official documentation.