745-W3-P5-G5-HI-ALR

About the 745-W3-P5-G5-HI-ALR

GE Multilin 745-W3-P5-G5-HI-ALR Transformer Management Relay

• SR469 Motor Management Relay; SR489 Generator Management Relay; SR735/737 Feeder Relay; SR745 Transformer Management Relay; SR750/760 Feeder Management Relay
• Comprehensive Transformer Protection: This relay, part of GE Multilin’s 745 series, protects and manages power transformers from small to large.
• Integrated Protection Elements: It offers an array of features in a single device, including:
  • Frequency protection
  • Percent differential
  • Overcurrent
  • Overexcitation protection
• Advanced Monitoring: Capable of monitoring individual harmonics and total harmonic distortion.
• Adaptive Relaying Capabilities: Boasts a number of adaptive features such as:
  • Dynamic CT ratio mismatch correction
  • Adaptive time overcurrent elements
  • Adaptive harmonic restraint
• Simulation & Data Capabilities: Can conduct simulations to test relay operations using computer-generated waveform data, which can then be digitized and downloaded.

User Interface and Connectivity

• Manual Control: Features a 40-character backlit liquid crystal display and an input keypad for manual adjustment of setpoints.
• Software Integration: Includes an RS232 program port for easy connection to computers running EnerVista 745 Setup Software, enabling convenient setpoint management.
• EnerVista 745 Software Functions: EnerVista 745 acts as a single program for:
  • Configuring the relay
  • Maintaining the system
  • Troubleshooting issues
  • Monitoring relay functions
• Status Indicators: The front panel contains LEDs that indicate various system statuses during routine operation.

Physical Design and Electrical Specifications

• Durable Enclosure: Encased in a 745 SR-series arrangement, providing mechanical protection and featuring a dust-tight door.
• Inputs and Outputs: Provides sixteen logic inputs and eight output relays.
• Winding Configuration: Offers three windings per phase.
• High Control Power: Functions on a higher control power range: 90 to 300 VDC; 70 to 265 VAC at 48 to 62 Hz.
• Included Options: Features analog input/output, loss of life, and restricted ground fault options.