Schneider Electric REL52002C

Schneider Electric REL52002C (Easergy P3U30 Universal Protection Relay)

REL52002C es un relé de protección integrado digital universal de Easergy P3U30 de Schneider Electric. (anteriormente PowerLogic P3U30) serie. Diseñado específicamente para medianas- y sistemas de energía de baja tensión, proporciona una protección integral, medición, control, y funciones de comunicación.

1 Interpretación del código modelo

Full corresponding order code: P3U30-5AAA3BBAC (configuración estándar)

2 Especificaciones clave & Funciones

2.1 Configuración de hardware

Entradas analógicas: 3 corrientes de fase (Connecticut) + 1 corriente residual (yo) + 4 voltajes (Vermont)

Entradas digitales (DE): 16 canales, universal for 220V AC/DC

Salidas digitales (HACER): 8 channels with watchdog function (reliable tripping under fault conditions)

Comunicación: RS485 (Modbus RTU); dual RJ45 Ethernet (CEI 61850) opcional

Fuente de alimentación: Wide range 48–230V AC/DC

2.2 Funciones de protección (ANSI Standards)

2.3 Medición & Escucha

Parámetros eléctricos completos.: actual, Voltaje, fuerza (activo/reactivo/aparente), factor de potencia, frecuencia

Medición de energía: four-quadrant energy accumulation, class 0.5S accuracy

Harmonic analysis: voltage/current 2nd to 31st harmonics monitoring

Event logging: 1000 events with timestamp (1 ms resolution)

Registro de fallas: built-in waveform capture before and after faults

3 Entorno operativo

Estándares: CEI 61850, CEI 60255, GB/T 14598 and other international/national standards

Temperatura de funcionamiento: -25°C ~ +70°C (diseño de amplia temperatura)

Temperatura de almacenamiento: -40°C ~ +85°C

Humedad: 5% ~ 95% (sin condensación)

Protección de ingreso: IP20 (panel frontal), suitable for panel mounting in switchgear

Resistencia a las vibraciones: CEI 60068-2-6 (5–150Hz, 0.5gramo)

Aplicaciones típicas:

Medio- and low-voltage distribution substations (10kV/0.4kV)

Industrial plant power systems

Distribución de energía para edificios comerciales.

Renewable energy grid connection (fotovoltaica, wind)

Centros de control de motores (MCC)

UPS input/output protection in data centers

4 Related Models in the Same Series (REL520xx)

5 Official Ordering Information

Standard order code: REL52002C

Full configuration code: P3U30-5AAA3BBAC

Replacement reference: Can replace earlier PowerLogic P3 series protection relays

Accesorios:

Módulo de comunicación: P3-COM-ETH (CEI 61850 Ethernet module)

Extension module: P3-EXT-DIO (additional DI/DO expansion)

Local HMI: P3-HMI (local human-machine interface)

6 Modelos de reemplazo & Compatibilidad

6.1 Within-series Replacements

Lower DI voltage required: REL52020 (24V DI), REL52016 (110V DI)

comunicación extendida: REL52025 (dual RJ45 Ethernet)

6.2 Cross-series Replacements

Aplicaciones avanzadas: SEPAM 20 serie (medium-voltage systems)

Economy applications: Easergy P3U20 series (configuración simplificada, 10DI/5DO)

7 Engineering Implementation Notes

1. Montaje: Standard 4U height, 19-inch rack mounting; front-or rear-wiring optional
2. Alambrado:

entrada CT: 5A/1A selectable (software configuration required)

VT input: 100V (line-to-line) / 57.7V (phase-to-neutral)

TRAVESURA: Phoenix terminals, screw or spring connection

3. Puesta en servicio:

Parameter configuration and monitoring via Easergy Studio software

Local USB and remote network debugging supported

Comprehensive self-diagnostics for easy maintenance

REL52002C is a full-featured, flexible universal protection relay suitable for protection and monitoring in various medium- y sistemas de energía de baja tensión, especially industrial applications requiring 220V digital inputs and RS485 communication.

Core Parameter Comparison Table – Schneider Electric Easergy P3U30 Series (REL520xx)

1 Basic Parameter Summary

2 Selección de clave & Replacement Rules

2.1 Voltage Class Replacement

Original model: REL52002C (220V DI)

Reemplazo directo (only DI voltage differs):

110V systems → REL52016

24V low-voltage systems → REL52020

2.2 Communication Upgrade

RS485 only: keep REL52002C

IEC 61850/Ethernet required: REL52020 / REL52025

2.3 Non-interchangeable Cases

REL52010C with 2LC interfaces is for dedicated transformer connections and not for standard panels

Terminal types differ; cabinet wiring must match ring or standard terminals

3 Common Features (Across Series)

Protección: 50/51 sobrecorriente, 50N/51N earth fault, 27/59 Voltaje, 46 phase rotation, 49 sobrecarga térmica

Medida: Class 0.5S energy, 2–31 harmonics

Logging: 1000 time-stamped events, registro de fallas

Montaje: Standard 19-inch 4U for panel installation

Software: Configured via Easergy Studio

Application Scenarios – Schneider Electric REL520xx Series

1 REL52002C (220V DI + RS485)

Most common and widely used standard model

10kV general distribution substations: feeder, incomer, bus tie, station transformer, capacitor protection

Standard MCC panels in industrial plants, motors for pumps, fans, compresores de aire

0.4kV critical circuits in commercial buildings: malls, oficinas, hoteles

Retrofit of old substations with only Modbus RTU for data upload

Municipal facilities: residential substations, streetlight power, small water pump stations

Característica: On-site 220V AC/DC control power, basic power monitoring only

2 REL52016 (110V DI + RS485)

For traditional high-voltage control circuits

Legacy substations and power plant auxiliary systems

Industria pesada: aceite, químico, metalurgia (typically 110V DC control power)

Substation retrofits: reuse existing 110V secondary cables without rewiring

Mining and heavy machinery plant distribution protection

3 REL52010C (110V DI + RS485 + 2LC)

Special transformer configuration scenarios

Custom medium-voltage switchgear with dedicated LC transformer interfaces

Special circuits with integrated metering and protection

Industrial projects with fixed CT/VT wiring requirements

Rare in general projects; custom-engineered model

4 REL52020 (24V DI + CEI 61850)

Low-voltage automation & smart grid applications

Data center UPS input/output, precision power distribution

PV and wind turbine box-type substations, energy storage grid connection

Smart microgrids and distributed generation projects

Power distribution for automated production lines linked with PLC (24V low-voltage control)

Small smart power stations requiring IEC 61850 comunicación

5 REL52025 (220V DI + Dual Ethernet IEC 61850)

High-end smart power distribution

New smart substations, main distribution in intelligent industrial parks

Tránsito ferroviario (metro/high-speed rail): traction substations, distribución de energía

Critical circuits at airports, puertos, large venues

High-end projects requiring network redundancy, remote O&METRO, centralized dispatching

Multi-device networking and centralized monitoring in control centers

General Industry Applications (Serie completa)

Sistemas de energía: 10kV/35kV substations, switching stations, ring main units

Fabricación: metalurgia, químico, papel, electrónica, equipment production

Renewables: fotovoltaica, energía eólica, almacenamiento de energía, EV charging clusters

Infraestructura: centros de datos, tránsito ferroviario, hospitales, escuelas, commercial complexes

Minería & agua: mine power, pump stations, wastewater treatment plant protection