745-W2-P5-G5-HI-A-E-H

About the 745-W2-P5-G5-HI-A-E-H

GE Multilin 745-W2-P5-G5-HI-A-E-H Transformer Protection Relay

• Advanced Protection & Management: This enhanced 745 series model manages and safeguards transformers, autotransformers, and reactors.
• Real-time Adaptive Features: It employs adaptive features to respond to system events in real time, including:
  • Dynamic CT Ratio Mismatch Correction
  • Overexcitation Protection
  • Transformer Overload Protection
  • Frequency Rate-of-Change Detection
• System Life Extension & Insight: These features help extend system life by minimizing strain on transformer elements. Features like Hottest Spot Monitoring provide insight into potential issues before they escalate.

Total Harmonic Distortion (THD) Calculation

• Signal Distortion Reduction: The Total Harmonic Distortion (THD) feature calculates distortion in system signals to reduce unnecessary interference.
• IEEE Standards Adherence: THD is calculated for each winding and evaluated according to user settings (setpoints), adhering to IEEE standards.
• THD Specifications: The THD range is 0.00 to 99.9%, with an accuracy of ±1% of full-scale at 0.5 × CT.

Environmental Durability & User Interface

• Protective Conformal Coating: Equipped with a conformal coating, this model is well-suited for harsh operation environments. This thin, polymeric layer guards against dust, temperature, humidity, abrasion, and chemicals, while allowing moisture to dissipate.
• Enhanced LCD & Keypad: This model features an enhanced LCD that is wider than the base model. The expanded keypad significantly increases functionality for manual setpoint entry and reviewing system values.