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P14DG16A7C0500A

The Alstom P14DG16A7C0500A is an advanced numerical protection relay designed for critical railway power distribution and traction systems. This high-performance unit provides comprehensive protection, monitoring, and control functions for both AC and DC railway electrification networks.

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Key Features
1. Multi-Functional Protection

Overcurrent (directional/non-directional)

Earth fault protection (sensitive/residual)

Distance protection (impedance measurement)

DC system protection (1.5kV/3kV applications)

2. Railway-Specific Design

Compliant with EN 50155 standards

-40°C to +70°C operating temperature

Vibration resistant per EN 61373

IP54 front panel protection

3. Advanced Monitoring Capabilities

Real-time measurement of 50+ parameters

Disturbance recorder (up to 128 samples/cycle)

Event recording (500+ time-tagged events)

4. Communication & Integration

Dual Ethernet ports (IEC 61850 compliant)

RS485 Modbus RTU interface

USB port for local configuration

IEC 60870-5-103 protocol support

Technical Specifications
Parameter Specification
Voltage Input 57.7-120V AC (phase), 100-240V DC
Current Input 1A or 5A (configurable)
Protection Functions 30+ programmable elements
Operation Speed <20ms for overcurrent functions
Communication 2x Ethernet, 1x RS485, USB
Power Supply 24/48/110/220V DC/AC
Dimensions 177×177×220mm (4U)
Applications
AC traction substations (15kV/25kV)

DC traction power supply (1.5kV/3kV)

Railway feeder protection

Catenary system monitoring

Station power distribution