Description
GE / Alstom P50 Agile P15D Feeder Protection Relay
The GE P15D (specifically model P15D211A1A0010A) is a compact and versatile feeder protection relay from the P50 Agile series. It is designed to provide comprehensive protection, control, and monitoring for utility and industrial distribution systems. This Agile Relay is engineered to offer high-performance overcurrent and earth fault protection in a space-efficient 4U case.
Product Introduction
The P15D211A1A0010A is a numerical relay that offers a cost-effective solution for feeder protection. It features advanced protection algorithms, a user-friendly HMI, and robust communication capabilities. This model is typically used for primary or back-up protection on MV/LV lines, providing functions like three-phase overcurrent, earth fault, and thermal overload protection to ensure the safety and reliability of the power grid.
GE P15D211A1A0010A
Product Parameters (Datasheet)
| Parameter | Specification |
| Model Number | P15D211A1A0010A |
| Protection Functions | 50/51 (P/G), 50N/51N, 49, 37, 46, 50BF |
| Current Inputs | 3 Phase + 1 Earth (1A/5A Software Selectable) |
| Auxiliary Power Supply | 24V to 250V DC / 48V to 240V AC |
| Digital Inputs/Outputs | 4 Inputs / 4 Outputs |
| Communication Port | Rear RS485 (Modbus RTU) |
| Display Type | Backlit LCD with Navigation Keys |
| Mounting | Panel Mount / Flush Mount (4U height) |
| Degree of Protection | IP52 (Front Panel) |
Country of Origin
- Origin: India / France (GE Grid Solutions)
Usage Instructions
- Mounting: Secure the relay into the panel cutout using the provided mounting clamps. Ensure adequate clearance for wiring at the rear.
- Wiring: Connect the CT (Current Transformer) secondary wires to the appropriate phase and earth terminals. Connect the auxiliary power supply according to the voltage rating.
- Parameter Setting: Access the menu via the front panel HMI or use the Agile Configurator software. Set the CT ratios, nominal frequency, and protection curves (IDMT or DT).
- Testing: Perform a secondary injection test to verify the pickup current and operating time of the overcurrent and earth fault elements.
- Operation: Once commissioned, the relay will display real-time load currents. In the event of a fault, the “Trip” LED will illuminate and the fault record can be retrieved from the event log.
Product Q&A
- Q: Can the current input be changed from 1A to 5A in the field?
- A: Yes, the P15D model allows software selection of the nominal current (I_n) for both phase and earth inputs, making it adaptable to different CT secondary ratings.
- Q: Does this relay support Modbus communication?
- A: Yes, the model P15D211A1A0010A includes an RS485 port at the rear supporting Modbus RTU protocol for SCADA integration.
- Q: What is the benefit of the “Agile” series over legacy Alstom P12x relays?
- A: The Agile series provides a more compact design, universal power supply ranges, and enhanced processing speed for faster fault detection.
Recommended Similar Models
- GE P15N Agile: Dedicated Non-Directional Earth Fault Relay.
- GE P153 Agile: Advanced Feeder Management Relay with additional I/O.
- GE P14D Agile: Directional Feeder Protection Relay for complex grids.
- Alstom P122: Legacy Non-Directional Overcurrent Relay.
- GE P922 Agile: Voltage and Frequency protection relay.
Documentation & Manuals
For full technical specifications, ordering codes, and terminal mapping, please refer to the P50 Agile documentation:
Download GE P15D MANUAL datasheet
