GE Multilin 745-W2-P1-G1-HI-T-H Transformer Protection Relay

The GE Multilin 745-W2-P1-G1-HI-T-H Transformer Protection Relay features transformer overload protection and overexcitation protection to ensure smooth transformer operation.

It also monitors, records and displays trends in system variables such as temperature, voltage, power, energy consumption and rate of change of frequency.

Product Description

The 745-W2-P1-G1-HI-T-H is a GE Multilin transformer protection relay that extends transformer life expectancy and optimizes transformer performance.

It protects and manages small, medium and large transformer systems. Part of the 745 Series, the 745-W2-P1-G1-HI-T-H features transformer overload protection and overexcitation protection to keep transformers running smoothly.

It also monitors, records and trends system variables such as temperature, voltage, power, energy consumption and frequency rate of change.

These values can be quickly referenced through the relay's software program, Enervista 745.

The Enervista 745 software program can also be used to edit setpoints. Utilizing GE Multilin's quick connect feature, the

Connecting the relay to a computer is simple with the GE Multilin Quick Connect feature. The connection can be established via Ethernet, the RS232 port on the front, or the RS485/RS422 port on the back of the panel.

The program assists in managing system setup and automatically flags programming errors or conflicts as the user adjusts setpoints.

The 745-W2-P1-G1-HI-T-H's enhanced 40-character display is larger than the base model and includes an extended keypad for easy manual setpoint entry.

The enclosure is 9" high by 7" wide by 7 ⅛" deep. The transformer protection system can be mounted on a standard 19" panel, but care should be taken that the enclosure door opens and closes freely without contact with other components.

A number of LEDs on the front of the chassis alert the user to various statuses and errors in real time.

Frequently Asked Questions about the 745-W2-P1-G1-HI-T-H

What makes the Multilin 745-W2-P1-G1-Hi-T-H unique compared to other transformer protection relays in the 745 series?

The 745-W2-P1-G1-Hi-T-H Multilin transformer protection series contains unique options that differ from other part numbers.

Notably, the "-H" option indicates that the relay has a harsh chemical environment conformal coating for operation in harsh environments.

The T option in the 745-W2-P1-G1-Hi-T-H Multilin Dual Winding Transformer Management Relay differs from other relays in the 745 system in terms of display and Ethernet.

Transformer protection systems without the T option have either a basic display (B) or an enhanced display (E) with a larger LCD.

The T option comes with an enhanced display, larger LCD, and 10Base-T Ethernet.

How does the 745-W2-P1-G1-Hi-T-H Multilin monitor and manage power transformers?

The 745 Multilin series is a series of transformer protection systems that have the ability to manage and protect power transformers.

For this reason they are known as transformer management relays. As with the other relays in the 745 series, the

745-W2-P1-G1-Hi-T-H is capable of using frequency, percentage difference, overcurrent and overexcitation protection elements as well as harmonic (single harmonic and total harmonic (THD)) tracking elements in one system.

745-W2-P1-G1-Hi-T-H Multilin Is there two or three windings per phase?

The 745-W2-P1-G1-Hi-T-H Multilin transformer protection system has two windings per phase.

Comments on 745-W2-P1-G1-HI-T-H

The conformal coating of the 745-W2-P1-G1-HI-T-H adds a protective layer that shields the relay from moisture, chemicals, dust, and temperature extremes: this makes it an excellent choice for harsh environments.