About the 745-W3-P155-G5-HI-A-L-E
The 745-W3-P155-G5-HI-A-L-E is a 745 Transformer Protection System manufactured by General Electric. The 745 series falls under the General Electric Mutlilin product line. The 745-W3-P155-G5-HI-A-L-E is a high speed unit with multiple processors that allows this system to be used with a range of small to large power transformers.
The 745-W3-P155-G5-HI-A-L-E has several protective features that allow for the unit to be one of the best in the industry. The 745 relays offer protection against overcurrent, under/overfrequency, and overexcitation, among other features. The 745-W3-P155-G5-HI-A-L-E also monitors individual harmonics and total harmonic distortion of the transformers. This unit has several more specific features. These features are analog inputs/outputs and loss of life protection. The loss of life protection allows users to see an estimate of how much of the transformer's total insulation life has elapsed.
The 745-W3-P155-G5-HI-A-L-E can be used as a standalone unit or within a system for automated substation control. The 745 relays can be used as primary protection or as a backup protection device for power transformers, autotransformers, and reactors.
The 745-W3-P155-G5-HI-A-L-E can record 128 events, which allows users to see the time, date, cause, and system parameters of every recorded event. This helps to determine the settings of the unit when an event occurs.
