المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
شنايدر إلكتريك REL52002C (Easergy P3U30 Universal Protection Relay)
REL52002C هو مرحل حماية رقمي متكامل عالمي من Easergy P3U30 من شنايدر إلكتريك (سابقا PowerLogic P3U30) مسلسل. مصممة خصيصا للمتوسطة- وأنظمة الطاقة ذات الجهد المنخفض, فهو يوفر حماية شاملة, قياس, يتحكم, ووظائف الاتصال.
1 تفسير رمز النموذج
| مقطع الكود | وصف |
| REL | Product category: تتابع (protection relay) |
| 52002 | Product series and basic configuration: Easergy P3U30 platform, 3CT/1Io/4VT/16DI/8DO/RS485 |
| ج | Configuration suffix: Digital input (من) voltage class 220V AC/DC |
Full corresponding order code: P3U30-5AAA3BBAC (التكوين القياسي)
2 المواصفات الرئيسية & Functions
2.1 Hardware Configuration
Analog inputs: 3 phase currents (ط م) + 1 التيار المتبقي (Io) + 4 voltages (VT)
Digital inputs (من): 16 القنوات, universal for 220V AC/DC
Digital outputs (يفعل): 8 channels with watchdog function (reliable tripping under fault conditions)
تواصل: RS485 (مودبوس ار تي يو); dual RJ45 Ethernet (اللجنة الانتخابية المستقلة 61850) خياري
مزود الطاقة: Wide range 48–230V AC/DC
2.2 وظائف الحماية (ANSI Standards)
| نوع الحماية | ANSI Code | وصف |
| حماية التيار الزائد | 50/51 | لحظية / definite time overcurrent; configurable inverse‑time characteristics |
| Earth fault protection | 50N/51N | Zero‑sequence overcurrent protection, suitable for TN/TT systems |
| الجهد الزائد / انخفاض الجهد | 59/27 | Phase‑/line‑voltage abnormality protection |
| Phase failure / Phase reversal | 46 | Prevents motor reverse rotation or unbalanced operation |
| Thermal overload protection | 49 | Simulates motor thermal characteristics to prevent burnout |
| Frequency protection | 81 | Over‑/under‑frequency protection for distributed generation |
| Synchronism check | 25 | Ensures safe grid‑connection operation |
2.3 قياس & Monitoring
Full electrical parameters: حاضِر, الجهد االكهربى, قوة (active/reactive/apparent), عامل الطاقة, تكرار
Energy metering: 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)
Fault recording: built-in waveform capture before and after faults
3 بيئة التشغيل
Standards: اللجنة الانتخابية المستقلة 61850, اللجنة الانتخابية المستقلة 60255, جيجابايت/ت 14598 and other international/national standards
درجة حرارة التشغيل: -25درجة مئوية ~ +70 درجة مئوية (wide-temperature design)
Storage temperature: -40°C ~ +85°C
رطوبة: 5% ~ 95% (غير التكثيف)
Ingress protection: IP20 (اللوحة الأمامية), suitable for panel mounting in switchgear
Vibration resistance: اللجنة الانتخابية المستقلة 60068-2-6 (5–150Hz, 0.5ز)
التطبيقات النموذجية:
واسطة- and low-voltage distribution substations (10kV/0.4kV)
Industrial plant power systems
Commercial building power distribution
Renewable energy grid connection (الكهروضوئية, wind)
Motor control centers (مركز عملائي)
UPS input/output protection in data centers
4 Related Models in the Same Series (REL520xx)
| نموذج | الفرق الرئيسي | DI Voltage | تواصل |
| REL52002C | النوع القياسي, 3CT/1Io/4VT | 220V | RS485 |
| REL52002 | Basic type, same configuration | 220V | RS485 |
| REL52010C | With dual LC (current transformers) | 110V | 2LC + RS485 |
| REL52016 | Ring terminals, DI 110V | 110V | RS485 |
| REL52020 | Ring terminals, DI 24V | 24V | RS485 + اللجنة الانتخابية المستقلة 61850 |
5 Official Ordering Information
Standard order code: REL52002C
Full configuration code: P3U30-5AAA3BBAC
Replacement reference: Can replace earlier PowerLogic P3 series protection relays
مُكَمِّلات:
Communication module: P3-COM-ETH (اللجنة الانتخابية المستقلة 61850 Ethernet module)
Extension module: P3-EXT-DIO (additional DI/DO expansion)
Local HMI: P3-HMI (local human-machine interface)
6 نماذج الاستبدال & التوافق
6.1 Within-series Replacements
Lower DI voltage required: REL52020 (24V DI), REL52016 (110V DI)
Extended communication: REL52025 (dual RJ45 Ethernet)
6.2 Cross-series Replacements
Advanced applications: SEPAM 20 مسلسل (medium-voltage systems)
Economy applications: Easergy P3U20 series (simplified configuration, 10DI/5DO)
7 Engineering Implementation Notes
- تصاعد: Standard 4U height, 19-inch rack mounting; front-or rear-wiring optional
- الأسلاك:
CT input: 5A/1A selectable (software configuration required)
VT input: 100V (line-to-line) / 57.7V (phase-to-neutral)
DI/DO: Phoenix terminals, screw or spring connection
- التكليف:
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- وأنظمة الطاقة ذات الجهد المنخفض, especially industrial applications requiring 220V digital inputs and RS485 communication.
Core Parameter Comparison Table – Schneider Electric Easergy P3U30 Series (REL520xx)
1 Basic Parameter Summary
| نموذج | DI Voltage | تواصل | Analog Inputs | DO Channels | مزود الطاقة | الفرق الرئيسي |
| REL52002C | 220V AC/DC | RS485 (مودبوس) | 3CT+1Io+4VT | 8 | 48–230V AC/DC | Standard general‑purpose model, 220V DI, RS485 only |
| REL52002 | 220V AC/DC | RS485 (مودبوس) | 3CT+1Io+4VT | 8 | 48–230V AC/DC | Identical hardware to C version, simplified suffix |
| REL52010C | 110V AC/DC | RS485+2LC | 3CT+1Io+4VT | 8 | 48–230V AC/DC | 110V DI, dual LC transformer interfaces |
| REL52016 | 110V AC/DC | RS485 (مودبوس) | 3CT+1Io+4VT | 8 | 48–230V AC/DC | 110V DI, ring‑type terminals |
| REL52020 | 24في العاصمة | RS485+IEC 61850 | 3CT+1Io+4VT | 8 | 48–230V AC/DC | 24V DI, supports IEC 61850 Ethernet |
| REL52025 | 220V AC/DC | Dual RJ45+IEC 61850 | 3CT+1Io+4VT | 8 | 48–230V AC/DC | 220V DI, dual Ethernet ports, premium communication |
2 اختيار المفتاح & Replacement Rules
2.1 Voltage Class Replacement
Original model: REL52002C (220V DI)
الاستبدال المباشر (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)
حماية: 50/51 التيار الزائد, 50N/51N earth fault, 27/59 الجهد االكهربى, 46 phase rotation, 49 thermal overload
Metering: Class 0.5S energy, 2–31 harmonics
Logging: 1000 time-stamped events, تسجيل خطأ
تصاعد: 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, المشجعين, ضواغط الهواء
0.4kV critical circuits in commercial buildings: malls, offices, الفنادق
Retrofit of old substations with only Modbus RTU for data upload
Municipal facilities: residential substations, streetlight power, small water pump stations
مميزة: 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
صناعة ثقيلة: oil, كيميائية, علم المعادن (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 + اللجنة الانتخابية المستقلة 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 تواصل
5 REL52025 (220V DI + Dual Ethernet IEC 61850)
High-end smart power distribution
New smart substations, main distribution in intelligent industrial parks
Rail transit (metro/high-speed rail): traction substations, power distribution
Critical circuits at airports, ports, large venues
High-end projects requiring network redundancy, remote O&م, centralized dispatching
Multi-device networking and centralized monitoring in control centers
General Industry Applications (Full Series)
أنظمة الطاقة: 10kV/35kV substations, switching stations, ring main units
Manufacturing: علم المعادن, كيميائية, paper, إلكترونيات, equipment production
Renewables: الكهروضوئية, طاقة الرياح, تخزين الطاقة, EV charging clusters
بنية تحتية: مراكز البيانات, rail transit, المستشفيات, المدارس, commercial complexes
Mining & water: mine power, pump stations, wastewater treatment plant protection
