PRODUCT DESCRIPTION
SIEMENS 7SJ82 -P1J38313 - Feeder and Motor Protection Relay
The SIEMENS SIPROTEC 7SJ82 is a numerical protection relay engineered for comprehensive feeder and motor protection within medium-voltage and high-voltage distribution networks. This device integrates advanced protection functions, control capabilities, and monitoring features, utilizing microprocessor-based technology for precise fault detection, system stability, and operational reliability. It is specifically designed for critical infrastructure, industrial plants, and power generation facilities requiring robust electrical system management.
Technical Specifications:
- SERIES/FAMILY: SIPROTEC 5
- COMPONENT TYPE: Feeder and Motor Protection Relay
- ELECTRICAL SPECS:
- AUXILIARY VOLTAGE: 110-250V AC/DC (typical for 7SJ82 series)
- NOMINAL CURRENT INPUTS: 1A or 5A (configurable via hardware/software)
- NOMINAL VOLTAGE INPUTS: 100V, 110V, 120V, 220V (configurable via hardware/software)
- FREQUENCY: 50/60 Hz
- PHASE: Designed for 3-phase systems with integrated neutral current measurement
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Modular, panel-flush mountable or rack-mountable unit
- DIMENSIONS: Varies based on specific hardware configuration and I/O module selection, conforming to standard SIPROTEC 5 housing sizes
- INTERFACE/CONTROL:
- COMMUNICATION PROTOCOLS: IEC 61850 (GOOSE, MMS), IEC 60870-5-103, DNP3, Modbus TCP/RTU, PROFINET (optional, dependent on specific hardware configuration)
- I/O: Configurable binary inputs and outputs for control, signaling, and trip functions
- FEEDBACK: Integrated event recorder, fault recorder, measured value acquisition, disturbance recorder
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP40 (front panel), IP20 (rear terminals)
- COOLING METHOD: Passive convection
- MOUNTING STYLE: Panel flush mounting, rack mounting
- COMPATIBILITY/APPLICATION: Substation automation systems, industrial power distribution, motor control centers, generator protection, overhead lines, cables, transformers, capacitor banks