コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
P3U30-5AAA3BBAC is a general-purpose numerical integrated protection relay from the Schneider Electric Easergy P3 Series, also commonly referred to as a “numerical protection relay” or “protective relay device”. It is mainly used for the protection, コントロール, 測定, and monitoring of feeders, 変圧器, モーター, and other equipment in medium‑ and low‑voltage power systems.
- In‑Depth Model Code Analysis (Schneider P3 Series Standard Naming Convention)
| コードセグメント | 意味 | 説明 |
| P3U30 | ベーシックモデル | P3 = Easergy P3 Series; U = Universal Protection; 30 = 30TE standard size (約. 190×190 mm) |
| 5 | 保護構成 | 5 = Standard feeder protection package (including overcurrent, 瞬間的な, 地絡, reclosing, and other basic functions) |
| AAA | 測定 & 入力 | 1st A = 3CT (3 current transformer inputs); 2nd A = 1Io (1 residual current input); 3rd A = 4VT (4 voltage transformer inputs: 3 フェーズ + 中性) |
| 3 | 通信インターフェース | 3 = Dual RJ45 Ethernet ports (supports mainstream protocols such as Modbus TCP, IEC 61850) |
| BB | デジタル I/O | 1st B = 16DI (16 デジタル入力); 2nd B = 8DO (8 デジタル出力) |
| あ | Auxiliary Power Supply | A = Wide‑range 48–230 V AC/DC power supply (adapts to various on‑site power conditions) |
| C | Digital Input Voltage | C = 220–230 V AC/DC (rated voltage for digital input circuits) |
- コア技術パラメータ & 仕様
3.1 電気的パラメータ
| パラメータのカテゴリ | 仕様 |
| Auxiliary Power | 48–230 V AC/DC, 50/60 Hz, 許容範囲 +10% / –15% |
| デジタル入力 (から) | 16 チャンネル, 220–230 V AC/DC, opto‑isolated, 応答時間 ≤ 1 MS |
| デジタル出力 (する) | 8 チャンネル, リレー出力, contact rating 250 Vと / 10 A or 24 ワシントンDCで / 10 あ |
| アナログ入力 | 3 相電流 (CT), 1 残留電流 (イオ), 4 電圧 (VT) |
| 測定精度 | 電流/電圧: クラス 0.2; Power/Energy: クラス 0.5 |
3.2 保護機能 (Feeder‑specific Configuration)
過電流保護 (IDMT / definite time selectable)
Instantaneous overcurrent protection (directional optional)
地絡保護 (definite time / IDMT)
Auto‑reclosure function (multi‑shot optional)
過負荷保護 (アラーム / trip selectable)
Voltage protection (過電圧 / 不足電圧 / dead voltage)
Frequency protection (overfrequency / underfrequency)
Non‑electrical protection (accepts temperature, プレッシャー, 等)
3.3 通信能力
Dual RJ45 Ethernet ports, supporting IEC 61850 ed.2, Modbus TCP, DNP3 TCP, イーサネット/IP
Optional RS485 serial port (Modbus RTU)
Supports network time synchronization (SNTP) and event recording (SOE, resolution 1 MS)
3.4 身体的特徴
寸法: 30TE standard (約. 190×190×180 mm)
取り付け: フラッシュマウント (panel mounting) or DIN‑rail mounting
侵入保護: IP40 (フロント), IP20 (全体)
動作温度: –25 °C to +70 ℃; 保管温度: –40 °C to +85 ℃
重さ: 約. 2.5 kg
- 代表的な用途
- Medium‑/Low‑Voltage Feeder Protection: 10 kV / 20 kV / 35 kV distribution feeders, enabling fast fault clearance and power restoration via auto‑reclosing
- 変圧器の保護: ディファレンシャル, 過電流, temperature protection for distribution transformers (with matching CT/VT configuration)
- モーター保護: Starting and running protection for HV motors, including stall, 過負荷, 位相損失, 地絡, 等.
- コンデンサバンク保護: 過電流, 過電圧, unbalance protection for reactive compensation capacitor banks
- 産業用オートメーションシステム: Front‑end device for SCADA systems, providing accurate electrical measurement and equipment status monitoring
- 製品の利点 & 特徴
- モジュラー設計: Protection functions flexibly configurable via software to suit various applications
- 高い信頼性: Based on Schneider Sepam, マイコム, and Vamp platforms, compliant with strict EMC tests (IEC/EN 60255)
- Comprehensive Measurement: Real‑time monitoring of 30+ 電気パラメータ: 現在, 電圧, 力, エネルギー, 頻度, 高調波, 等.
- Flexible Communication: Supports multiple industrial protocols, easily integrated into smart grids and automation systems
- User‑friendly: Chinese UI, local keypad operation, remote network configuration, built‑in fault recording (1024 points per cycle)
- 代替モデル & 付属品
6.1 代替モデル (Different Configurations in the Same Series)
| 代替モデル | 主な違い | 応用 |
| P3U30-5AAA1BCAA | 1×RJ45 + 1×RS485, DI = 24 V | Legacy system upgrades requiring RS485 |
| P3U30-5AAA2BBAB | Single RJ45, auxiliary power = 110 V | Sites with specific voltage levels, 簡素化された構成 |
| P3U30-5AAA3BDAA | Added arc‑flash protection | Fast protection for internal switchgear faults |
6.2 推奨アクセサリ
Communication cable: UTP Cat5e/Cat6 for Ethernet
I/Oモジュール: Expand DI/DO up to 32DI/16DO
HMI panel: オプション, for local operation and data display
Test tool: Dedicated P3 series software for setting configuration and fault analysis
- インストール & 操作上の注意
- CT/VT Wiring: Strictly observe polarity to avoid maloperation or inaccurate measurement
- 電源: Ensure auxiliary power matches rating; surge protection recommended
- コミュニケーション: Assign static IP to avoid conflicts
- Setting Tuning: Set protection values appropriately according to on‑site equipment parameters
- 定期メンテナンス: Annual function test, accuracy calibration, and communication/version check recommended
As a mainstream model of the Schneider Easergy P3 Series, the P3U30-5AAA3BBAC is widely used in power system protection and monitoring in industrial, エネルギー, and infrastructure fields. It is an ideal choice for the intelligent construction of medium‑ and low‑voltage power grids.
Complete Model Guide for Schneider Easergy P3 Series
(Including Full Range Related to P3U30-5AAA3BBAC)
The Schneider Easergy P3 Series numerical protection relays are divided into Standard (P3U) and Advanced (P3x) 行, covering feeders, 変圧器, モーター, 発電機, and other applications in medium‑/low‑voltage grids. All models are explained below by application, including key differences and suitable scenarios.
- Standard Universal Protection Relays (P3U Series)
Suitable for general feeders, モーター, 変圧器, cost‑effective and flexible.
| モデル | サイズ | コア機能 | 一般的な構成 | 応用 |
| P3U10 | 10TE (96×96 mm) | Basic overcurrent, no voltage measurement | P3U10-5AAA1BBAA | Simple feeders |
| – 3CT+1Io, no VT | Small distribution circuits | |||
| – 1×RJ45 | Basic protection with limited budget | |||
| – 16D/8C | ||||
| P3U20 | 20TE (96×190 mm) | Standard overcurrent + 方向性のある, with voltage measurement | P3U20-5AAA2BBAC | Directional feeders |
| – 3CT+1Io+4VT | Small/medium transformers | |||
| – 1×RJ45 | Applications requiring voltage monitoring | |||
| – 16D/8C | ||||
| – 48–230 V AC/DC | ||||
| P3U30 | 30TE (190×190 mm) | 完全な保護 + complete measurement + advanced communication | P3U30-5AAA3BBAC (original) | Complex feeders |
| P3U30-5AAA3BDAA (arc‑flash) | Large transformers | |||
| Dual Ethernet redundancy | ||||
| High‑precision measurement |
P3U Series Model Code Supplement
Standard format: P3UXX-5AAA3BBAC
5桁目 (5): 保護タイプ: 5=feeder, 6=motor, 7=transformer
6th–8th (AAA): アナログ入力: AAA=3CT+1Io+4VT, ABA=4CT+1Io+3VT
9th (3): コミュニケーション: 1=1×RJ45+1×RS485, 2=1×RJ45, 3=2×RJ45
10th–11th (BB): I/O: BB=16DI/8DO, BC=24DI/12DO, BD=32DI/16DO
12th (あ): Aux power: A=48–230 V AC/DC, B=110 V AC/DC, C=24 V DC
13th (C): DI voltage: C=220–230 V AC/DC, D=110 V AC/DC, E=24 V DC
- Advanced Specialized Protection Relays (P3x Series)
For dedicated high‑performance protection with built‑in algorithms.
2.1 Feeder‑specific Advanced Protection
| モデル | サイズ | コア機能 | 一般的な構成 | 応用 |
| P3F30 | 30TE | Directional overcurrent + 電圧 + optional arc | P3F30-CGGIA-AAEOA | Complex feeders |
| – 4CT+4VT | Ring networks | |||
| – 2×RJ45+1×RS485 | Switchgear arc‑flash protection | |||
| – 22DI/13DO | ||||
| P3L30 | 30TE | Line differential + 距離 + directional overcurrent | P3L30-LGGIA-AAEOA | Long transmission lines |
| – 6CT+4VT | Critical lines | |||
| – Dual IEC 61850 | Ring network differential | |||
| – 22DI/13DO |
2.2 Motor‑specific Advanced Protection
| モデル | サイズ | コア機能 | 一般的な構成 | 応用 |
| P3M30 | 30TE | モーター保護 + RTD temperature | P3M30-MGGIA-AAEOA | HV motors |
| – 3CT+1Io+4VT | Critical motors with temperature protection | |||
| – 16D/8C + 測温抵抗体 | ||||
| – デュアル RJ45 | ||||
| P3M32 | 30TE | P3M30 + motor differential | P3M32-MGGIA-AAEOA | 大型モーター (≥2000 kW) |
| – 6CT+4VT | Motor‑transformer units | |||
| – Differential module | ||||
| – 22DI/13DO |
2.3 Transformer‑specific Advanced Protection
| モデル | サイズ | コア機能 | 一般的な構成 | 応用 |
| P3T32 | 30TE | Transformer differential + non‑electrical + バックアップ | P3T32-TGGIA-AAEOA | 配電変圧器 |
| – 6CT+4VT | Power transformers | |||
| – WOG/pressure/temperature | ||||
| – 22DI/13DO |
2.4 Generator‑specific Advanced Protection
| モデル | サイズ | コア機能 | 一般的な構成 | 応用 |
| P3G30 | 30TE | 発電機の保護 + シンクロチェック | P3G30-GGGIA-AAEOA | 小型発電機 |
| – 3CT+1Io+4VT | バックアップジェネレーター | |||
| – Frequency/voltage/sync | ||||
| – 22DI/13DO | ||||
| P3G32 | 30TE | Generator differential + stator/rotor earth | P3G32-GGGIA-AAEOA | Large generators |
| – 6CT+4VT | Main power generators | |||
| – 100% stator earth | ||||
| – Rotor earth |
- Key Comparison Table (Related to P3U30-5AAA3BBAC)
| アイテム | P3U10 | P3U20 | P3U30 | P3F30 | P3M32 |
| サイズ | 10TE | 20TE | 30TE | 30TE | 30TE |
| Max I/O | 16D/8C | 24DI/12DO | 32D/16C | 32D/16C | 32D/16C |
| コミュニケーション | Single Ethernet + シリアル | Single Ethernet | Dual Ethernet | デュアル + Dual Serial | デュアル + Dual Serial |
| 保護 | Basic overcurrent | 過電流 + 方向性のある | 満杯 + arc optional | 指向性 + 電圧 + arc | モーターデファレンシャル + 測温抵抗体 |
| 正確さ | クラス 0.5 | クラス 0.5 | クラス 0.2 | クラス 0.2 | クラス 0.2 |
| 応用 | Simple feeder | Standard feeder/transformer | Complex feeder/transformer | Critical feeder/ring | 大型モーター |
- モデルの選択 & 交換ガイド
- By application
Simple distribution: P3U10
Standard feeder/motor: P3U20
Complex systems: P3U30 or advanced P3x
Critical lines/motors/transformers: P3L30 / P3M32 / P3T32
- Replacements for P3U30-5AAA3BBAC
簡略化: P3U30-5AAA2BBAB (single Ethernet, 110 V)
With RS485: P3U30-5AAA1BCAA (1×RJ45+1×RS485, 24 VDI)
Arc‑flash: P3U30-5AAA3BDAA (32D/16C, arc module)
Motor version: P3U30-6AAA3BBAC (motor protection profile)
- 付属品 & 拡張モジュール
All P3 models share a unified accessory system:
コミュニケーション: RS485 card, fiber modules (P3U10/20)
I/O expansion: DI/DO modules (up to 64DI/32DO)
Special modules: 測温抵抗体 (P3M), arc sensor interface (P3U30/P3F30)
HMI panel for local operation
