About the 745-W2-P5-G5-HI-A-R-E-H
The 745-W2-P5-G5-HI-A-R-E-H is a 745 Transformer Protection System that has been manufactured by General Electric. This relay is designed to protect and control small, medium, and large power transformers, autotransformers, and reactors. The unit is three-phase and has two windings per phase, which is indicated by the W2 in the part number.
The 745-W2-P5-G5-HI-A-R-E-H has several additional features that are also indicated in the part number. These features are:
- Analog inputs/outputs
- Restricted ground fault
- Enhanced display; large LCD
- Harsh chemical environment conformal coating
The 745 Transformer Protection Systems have a monitoring feature for individual harmonics and total harmonic distortion. The systems also have a built-in metering function that eliminates the need for an auxiliary metering device.
Another important and useful feature of the 745-W2-P5-G5-HI-A-R-E-H is the protection that it provides. There are several types of protection that it offers. This includes:
- Overcurrent protection
- Under/Overfrequency
- Percent differential
