ОПИСАНИЕ ПРОДУКТА
SIEMENS 7SJ8041-5EB90-1FQ0 L0R - Multifunctional Feeder Protection Relay
The SIEMENS 7SJ8041-5EB90-1FQ0 L0R is a compact, microprocessor-based digital protection relay from the SIPROTEC 80 series, engineered for comprehensive feeder protection in medium-voltage and high-voltage distribution networks. It integrates overcurrent, earth fault, voltage, and frequency protection functions with advanced control capabilities, including auto-reclosure and breaker failure protection. This unit is designed for critical infrastructure applications such as industrial plants, power generation facilities, and utility substations requiring robust and reliable power system management.
Technical Specifications:
- SERIES/FAMILY: SIPROTEC 80
- COMPONENT TYPE: Multifunctional Feeder Protection Relay
- ELECTRICAL SPECS:
- RATED CURRENT INPUTS: 1A / 5A (selectable)
- AUXILIARY VOLTAGE: 60-250V AC/DC
- FREQUENCY: 50/60 Hz
- BINARY INPUTS: 4
- BINARY OUTPUTS: 4
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Compact, 1/3 19-inch housing
- MOUNTING: Flush mounting, surface mounting, or 19-inch rack mounting compatible
- INTERFACE/CONTROL:
- COMMUNICATION PROTOCOLS: IEC 61850, Modbus TCP/RTU, DNP3, IEC 60870-5-103/104
- PORTS: Ethernet (RJ45), RS485 (serial)
- FEEDBACK: Current, voltage, power measurements trip and status indications
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP50 (front), IP20 (rear terminals)
- COOLING: Passive convection
- COMPATIBILITY/APPLICATION: Feeder protection in utility and industrial power systems, generator protection, transformer protection, motor protection, distribution automation