GE SR489-P5-HI-A20-E Generator protection relay
Specific Parameters
Electrical Parameters
Control Power Supply: 90-300VDC, 70-265VAC (48-62Hz)Phase Current Input: 5A phase CT auxiliaryAnalog Inputs: 4 channels, supporting 0-1mA, 0-20mA, 4-20mA signalsAnalog Output: 4-20mADigital Inputs: 8 channels, for monitoring the status of external contacts, tachometers or control switchesDigital Outputs: 6 output contacts, controlling tripping, alarming and auxiliary functionsRTD Inputs: 12 channels, monitoring stator and bearing temperaturesCommunication Protocols: Modbus RTU, DNP3.0, IEC 61850, Ethernet 10Base-TProtection Features: Overcurrent protection, undervoltage protection, overvoltage protection, ground fault protection, out-of-step protection, overfrequency protection, underfrequency protection, phase reversal protectionFuse Rated Current: 2.5A (5x20mm HRC SLO-BLO)Insulation Resistance: ≥100MΩ between channels and between channels and power supply (measured at 500V DC, normal temperature and state)Voltage Withstand Strength: ≥2500V AC (1 minute no breakdown, leakage current ≤1mA)Certification Standards: Compliant with UL, CE, ISO 9001 certification standards
Mechanical Parameters
Overall Dimensions: 144mm×144mm×112mmWeight: Approximately 1.8kgMounting Method: DIN rail mounting, panel mounting, compatible with standard industrial control cabinetsHousing Material: ABS plastic, anti-electromagnetic interferenceConnection Method: Plug-in terminal blocks, compatible with shielded cablesDisplay Method: Enhanced LCD display, 40-character display, presenting parameters and fault informationProtection Rating: IP20, dustproof and moistureproofStatus Indication: Power (green), operation (yellow), fault (red) LED indicators
Environmental Parameters
Operating Temperature: -20℃ to 70℃, full performance operation without deratingStorage Temperature: -40℃ to 85℃, meeting extreme storage and transportation requirementsRelative Humidity: 5% to 95% (non-condensing), suitable for high-humidity industrial scenariosVibration Resistance: 3g acceleration at 3Hz-57Hz frequency range, 5g acceleration at 57Hz-500Hz frequency range (sine wave)Shock Resistance: 15g acceleration (half-sine wave, duration 11ms), withstanding installation and transportation shocksEMC Compliance: Meets industrial EMC standards with strong resistance to external interference
Product Performance
Comprehensive protection functions: Covers various fault types such as overcurrent and undervoltage, fully ensuring generator safetyRich monitoring dimensions: Supports synchronous collection of multiple parameters including temperature, vibration and current with high data integrityExcellent measurement accuracy: Modular design and advanced algorithms ensure precise parameter detection and rapid control responseWide communication compatibility: Multi-protocol support enables seamless connection to industrial automation systems for centralized monitoringIntuitive and easy operation: LCD display clearly presents operating status with detailed fault diagnosis information, reducing operation and maintenance costsFlexible expansion: Supports remote configuration and maintenance, allowing custom input and output functions according to application needsHigh operational stability: Industrial-grade components and strict quality control ensure excellent Mean Time Between Failures (MTBF)
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