ОПИСАНИЕ ПРОДУКТА
SIEMENS 7KG7750-0DA01-0AA0 - Multifunction Feeder Protection Relay
The SIEMENS 7KG7750-0DA01-0AA0 is a compact, microprocessor-based multifunction protection relay from the SIPROTEC 7SJ80 series. It provides comprehensive protection, control, and monitoring for feeders, overhead lines, and cables within medium-voltage and high-voltage distribution networks. This device integrates advanced protection algorithms with extensive communication capabilities for seamless integration into modern substation automation and industrial power management systems.
Technical Specifications:
- SERIES/FAMILY: SIPROTEC 7SJ80
- COMPONENT TYPE: Multifunction Feeder Protection Relay
- ELECTRICAL SPECS:
- NOMINAL CURRENT TRANSFORMER INPUTS: 1A or 5A (configurable)
- NOMINAL VOLTAGE TRANSFORMER INPUTS: 100V to 230V AC (for measurement)
- AUXILIARY POWER SUPPLY: 24-48V DC, 60-125V DC, or 110-250V DC/AC (variant specific for relay operation)
- FREQUENCY: 50 Hz / 60 Hz
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Compact housing
- MOUNTING: Panel flush mounting or surface mounting
- INTERFACE/CONTROL:
- COMMUNICATION PROTOCOLS: IEC 61850, Modbus TCP/RTU, DNP3, IEC 60870-5-103, IEC 60870-5-104
- ETHERNET PORTS: Typically 2x RJ45 (for redundant communication) or 1x RJ45
- SERIAL PORTS: RS485 or Fiber Optic (ST connector)
- BINARY INPUTS: Configurable, typically 4 to 11
- BINARY OUTPUTS: Configurable, typically 5 to 10
- MEASUREMENT FEEDBACK: Current, voltage, power, energy, frequency, fault records, event logs
- ENVIRONMENTAL/MOUNTING:
- IP RATING: Front IP54 (panel mounted), Rear IP20
- OPERATING TEMPERATURE: -25 °C to +55 °C
- COOLING METHOD: Passive convection
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Substation automation, industrial power distribution, distributed generation
- SPECIFIC APPLICATIONS: Feeder protection, line protection, cable protection, transformer protection, motor protection, generator protection
- PROTECTION FUNCTIONS: Overcurrent (directional/non-directional), earth fault, voltage, frequency, power, auto-reclosure, breaker failure