Schneider P127BA0V6D3FE0 Protection Relay

Schneider MiCOM P127BA0V6D3FE0 Overcurrent and Earth Fault Protection Relay

Schneider MiCOM Px20 series 3-phase and earth fault comprehensive protection relay, Type B earth current input (1Une note), V6 voltage module (57-130V), D3 communication module (dual-port), FE0 output configuration (8 relais programmables). It supports 24-250V DC / 48-240V AC power supply with IP50 ingress protection. Applied for the protection of feeders, transformateurs, motors and other equipment in medium and low-voltage power systems. Part number: P127BA0V6D3FE0.

1. Définition du segment du modèle

2. Full Version Technical Specification

3. MiCOM P127 Full Model List

4. Remplacement & Comparaison entre marques

4.1 Same Brand Direct Replacement

4.2 Cross-Brand Equivalent Models

5. Environnement d'application & Cas industriels

Applications recommandées

Système d'alimentation: Substation & distribution feeder protection up to 35kV

Automatisation industrielle: Moteur, transformer and busbar protection in petrochemical, métallurgie, coal industries

Railway: Surintensité & earth fault protection for traction power supply and station distribution

Nouvelle énergie: Combiner box and inverter protection for PV and wind farms

Bâtiments commerciaux: Standby power system protection for shopping complexes and data centers

Public Utilities: Power protection for pumping stations and water treatment projects

Cas d'application typiques

1. Substation Feeder Protection in Chemical Park

Objective: Protect 10kV feeders against equipment damage and power outage caused by overcurrent & earth faults

Avantages: Large adaptabilité de tension; 8 programmable outputs for complex trip logic; dual-port communication for remote monitoring

System Configuration: P127BA0V6D3FE0 + 10kV Vacuum Circuit Breaker + SCADA System

Effect: Fault response <30MS; power outage duration reduced by 40%; power supply reliability improved

2. Motor Protection Scheme for Automotive Factory

Objective: Protect large stamping line motors against overload and earth faults

Avantages: Directional protection for fault location discrimination; auto-reclosing reduces transient fault impact; event recording facilitates fault analysis

System Configuration: P127BA0V6D3FE0 + Centre multicompte + Industrial Ethernet

Effect: Motor failure rate reduced by 25%; production line efficiency increased by 18%

Not Recommended Scenarios

High voltage system (>35kV): Use MiCOM P40 or higher series

UHVDC system: Sans objet; dedicated DC protection relay required

Strong electromagnetic interference environment: Additional electromagnetic shielding required to avoid measurement deviation

Underwater / Humid outdoor environment: IP50 only suitable for indoor dry locations; outdoor installation requires protective enclosure

6. Installation & Wiring Guidelines

Exigences d'installation

1. Type de montage: Montage encastré; panel cutout 138×138mm, front panel 144×144mm
2. Position d'installation: Install inside control cabinet, avoid direct sunlight and high heat source; reserve ≥50mm clearance for heat dissipation
3. Wiring Standard: Current loop ≥2.5mm² copper cable; voltage loop ≥1.5mm² copper cable; separate routing ≥100mm between current and voltage wires
4. Mise à la terre: Device earth terminal must be reliably connected; earth resistance ≤1Ω linked to station earthing grid
5. Communication Wiring: RS485 uses shielded twisted pair; single-end shielding grounding; max communication distance 1200m

Core Terminal Definition

Points clés de la mise en service

1. Parameter Configuration: Use MiCOM S1 Studio via RS232 to set CT/PT ratio, protection settings and communication parameters
2. Setting Group Selection: 8 setting groups switchable for different operation modes; Groupe 1 par défaut
3. Protection Function Test: Simulate phase overcurrent & earth overcurrent to verify action accuracy and response time
4. Communication Test: Verify Modbus / IEC60870-5-103 / DNP3.0 data transmission
5. Event Record Check: Confirm complete event & fault waveform records after fault triggering
6. Règles de sélection & Quick Reference

Selection Mnemonic

Schneider P127 relay, full 3-phase earth protection,

Type B 1A earth input, V6 voltage 57-130V option,

D3 dual-port communication, FE0 with 8 relay operation,

24-250V wide power range, IP50 high protection graduation,

Order by P127BA0V6D3FE0, ideal for feeder station application.

Quick Selection Rules

1. Current Input: A=5A standard CT; B=1A high precision; C=0.1A high-sensitivity earthing
2. Voltage Module: V6=57-130V for PT secondary; Z1=24-60V for low voltage supply
3. Communication: D3=dual-port local+remote; D1=single-port cost saving
4. Sortir: FE0=8 relays standard; GE0=12 relays extended control
5. Special Function: Suffixe “1” supports IRIG-B time synchronization
6. Application: Feeder=standard; Motor=with directional; Transformer=with cold load pickup
7. Air Freight Compliance & Certifications

Air Freight Compliance: No lithium battery / supercapacitor. Built-in electromagnetic components, compliant with IATA DGR Class 9 non-restricted goods, shippable as general cargo.

Certifications:

CE: CEI 60255, DANS 61010

UL: UL 1053 Power Protection Standard

ASC: Canadian electrical safety approval

CEI 60255 Functional Safety certified by TÜV Rheinland

RoHS: EU RoHS compliant, free of hazardous heavy metals

Environmental Compliance: REACH regulation compliant

9. Achat & Logistics Info

Schneider MiCOM Protection Relay Full Series List (Structured Version)

Schneider MiCOM protection relays consist of 8 platform series: Px10 / Px20 / Px30 / Px40 / Px60 / Px70 / Px80 / Px90. Covers feeder / moteur / transformateur / générateur / jeu de barres / line distance / differential protection. Supports Modbus / IEC60870-5-103 / DNP3.0. Applicable from medium-low voltage up to EHV power systems. Part number rule: PXXX[Code de fonction][Module Code].

1. Naming Rule Definition

2. Series Classification by Application

2.1 Feeder Protection (P1xx)

2.2 Moteur & Rotating Machine (P2xx)

2.3 Protection du transformateur (P6xx)

2.4 Generator Protection (P3xx)

2.5 Line Distance Protection (P4xx)

2.6 Busbar Protection (P7xx)

2.7 Special Function Series