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GE SR745-W2-P1-G1-HI-A-L-R Transformer Management Protection Relay

GE SR745-W2-P1-G1-HI-A-L-R is a microprocessor-based transformer protection relay designed to enhance transformer safety and operational reliability.

It supports advanced protection algorithms and flexible configuration through GE’s FlexLogic™ system, enabling customized protection schemes for different power system requirements. The relay continuously monitors electrical parameters such as current, voltage, temperature, and harmonic distortion, ensuring fast fault detection and system isolation when needed.

This model is widely deployed in medium and large power transformers where reliability, fast response, and system integration are critical.

• Model: SR745-W2-P1-G1-HI-A-L-R

• Series: GE Multilin 745 Transformer Protection Relay

• Type: Numerical Transformer Management Relay

• Windings: 2-winding transformer protection (W2)

• CT Input Rating: 1A or 5A secondary (P1 configuration)

• Ground CT Input: G1 configuration support

• Control Power: HI (high range AC/DC auxiliary supply)

• Communication: RS232 / RS485 / optional Ethernet

• Protocols: Modbus RTU, DNP3 (system dependent)

• Display: LCD front panel interface with keypad

• Mounting: Draw-out case, panel/rack installation

• Operating Temperature: Industrial-grade range (-40°C to +60°C typical)

• Protection Functions: Differential, overcurrent, overvoltage, undervoltage, thermal overload, frequency protection

• Platform: GE Multilin SR745 series chassis

• Advanced transformer differential protection for fast fault isolation

• Flexible configuration via GE FlexLogic™ programming system

• High-speed fault detection and response capability

• Supports multiple communication protocols for SCADA integration

• Robust industrial design for harsh substation environments

• Comprehensive monitoring of electrical and thermal conditions

• Draw-out design for easy maintenance and replacement

• Long-term reliability for utility and industrial systems

GE SR745-W2-P1-G1-HI-A-L-R is widely used in:

Power generation stations

Electrical substations and grid systems

Industrial power distribution networks

Oil and gas electrical infrastructure

Renewable energy transformer protection

Heavy manufacturing facilities

SCADA-based power monitoring systems

Q1: What is GE SR745-W2-P1-G1-HI-A-L-R used for?
A1: It is used for transformer protection and management in electrical power systems.

Q2: What type of protection does it provide?
A2: It provides differential, overcurrent, overvoltage, undervoltage, thermal, and frequency protection.

Q3: Is it suitable for substation use?
A3: Yes, it is widely used in electrical substations and utility-grade environments.

Q4: Does it support communication with SCADA systems?
A4: Yes, it supports Modbus and DNP3 protocols via serial or Ethernet interfaces.

Q5: Is this model still widely used?
A5: Yes, it is commonly used in existing power infrastructure as a proven GE 745 series relay.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.