Technical Specifications
Range of product: MiCOM P64x
Device short name: P641
Relay application: Transformer
Number of inputs: 24 discrete, 7 current input CT...X/5 A and X/1 A
Number of outputs: 24 discrete
Communication port protocol: IEC 60870-5-103, Ethernet, Modbus RTU, DNP3, IEC 61850
Auxiliary supply: 24...48 V DC, 19…65 V, 48...110 V DC, 37…150 V, 40...100 V AC, 32…110 V, 110...250 V DC, 87…300 V, 100...240 V AC, 80…265 V
Network and machine diagnosis type: Fault recording, Event recording, Disturbance recording 75 s
Discrete input voltage: 24...27 V DC universal programmable voltage thresholds, 30...34 V DC universal programmable voltage thresholds, 48...54 V DC universal programmable voltage thresholds, 110...125 V DC universal programmable voltage thresholds, 220...250 V DC universal programmable voltage thresholds
Communication port support: Fiber optic, RS485, RS232
Mounting mode: Panel-mounted
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Application: Universal
Power supply: 48–230 V AC/DC
Current inputs: 3 CT + 1 residual CT
Voltage inputs: 4 VT (100/110 V)
Digital inputs: 16 DI
Digital outputs: 8 DO
Communication: 1 RJ45, 1 RS232, 1 USB
Protocols: IEC 60870-5-101, IEC 60870-5-103, Modbus RTU, DNP3, DeviceNet, SPAbus
Protection degree: IP54 (front)
Operating threshold: 110–230 V AC/DC
Display: LCD 128 x 64 pixels
Type: Pilot Wire Current Differential Feeder Protection Relay
Brand: Siemens Reyrolle
Model: 7PG21
Applications: Overhead lines, underground cables, interconnector circuits
Features:
Relays and CTs installed at both ends of the circuit, connected via dedicated pilot wires
Simple and robust design ensuring reliable operation
Three current inputs per relay, housed in E6 enclosures
High transient stability and fast fault detection
Adjustable phase and earth fault settings
Minimal variation of performance with pilot wire length
Optional 15 kV pilot isolation and supervision schemes
Test points available on relay fascia
Optional remote intertripping via pilot cores
Functions:
Protection: Three-phase differential protection via pilot wires
Supervision: Optional pilot wire supervision and overcurrent check
Control: Optional intertripping/unstabilising control
Compliance: IEC standards, Reyrolle Solkor R & Solkor Rf compatible
Mounting: Panel-mounted design
Maintenance: Easy installation, commissioning, and servicing
Mechanical Dimensions: 169.5×170×205 mm
Net Weight: 2.5 kg
Number of Digital Inputs: 16
Number of Digital Outputs: 8
Communication Ports: Front USB, Rear LC 2
Communication Protocols: IEC61850, Modbus, DNP3, EtherNet/IP, RSTP, PRP, etc.
Protection Functions: Phase overcurrent, overvoltage, earth fault, breaker failure, motor/generator protection, etc.
Control Functions: Switchgear control, programmable logic, local/remote control, Easergy SmartApp
Operating Temperature: -40 to 65°C
IP Rating: IP54
Warranty: 24 months
