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Ge 745-W2-P5-G5-HI-A Relay Protector
Ge 745-W2-P5-G5-HI-A
The GE SR745-W2-P5-G5-HI-A is a high-performance integrated relay protection device belonging to General Electric’s (GE) Multilin series. It is specially designed for the protection and monitoring of transformers and large-scale motors. Integrated with cutting-edge digital signal processing technology and flexible communication interfaces, this device delivers a reliable, accurate and easy-to-manage power system protection solution.
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1. Technical Specifications
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Parameter
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Specification
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Notes
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|---|---|---|
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Rated Voltage
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380V ±10% (Three-phase Four-wire)
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Applicable to medium and high-voltage distribution networks
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Current Measurement Range
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0 to 1000A
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Input via rated current transformers (CT)
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Operating Temperature
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-40°C to +60°C
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Adaptable to harsh industrial environments
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Storage Temperature
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-40°C to +80°C
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Suitable for long-term storage
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Ambient Humidity
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< 95% (Non-condensing)
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Applicable to high-humidity environments
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Protection Grade
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IP40 (Front Panel) / IP20 (Rear Panel)
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Dustproof and waterproof design
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Communication Interfaces
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Modbus, IEC 61850, RS-485, RS-232
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Compatible with various upper computers and SCADA systems
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Display Screen
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40-character LCD Screen
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Intuitively displays parameters and fault information
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Dimensions
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230mm x 160mm x 50mm (Approx. 9.06 x 6.30 x 1.97 inches)
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Compact structure
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Weight
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Approx. 1.8kg (Approx. 4.0 lbs)
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Lightweight and easy to install
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2. Product Features
- High Precision and Reliability: Adopting advanced digital signal processing technology and microprocessors, it realizes high-precision measurement and ultra-fast response, capable of detecting and cutting off fault currents within 1 millisecond to ensure stable operation of power equipment.
- Multi-Functional Protection: Built-in comprehensive protection functions including differential protection, overload protection, overheating protection, ground fault protection and harmonic overvoltage protection, fully meeting the safety requirements of transformers under diverse operating conditions.
- Flexible Communication Compatibility: Supports multiple mainstream communication protocols such as Modbus, IEC 61850, RS-485 and RS-232, enabling seamless integration with upper-level monitoring systems and multi-relay networks for efficient data transmission.
- Easy Installation and Maintenance: Designed for DIN rail mounting or panel mounting with standardized wiring terminals, reducing the demand for auxiliary components. The waterproof design of optical components also lowers the frequency of routine maintenance.
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3. Structure and Composition
- Input/Output Module: Covers current transformer (CT) inputs, analog outputs (4-20mA), Form A relay outputs and digital communication ports, realizing stable signal transmission and control output.
- Control Unit: Equipped with a built-in microprocessor and supporting software (such as EnerVista 745), responsible for core logical calculation, fault judgment and instruction execution.
- Display and Operation Panel: Configured with an LCD screen and dedicated keypad, allowing operators to directly view operating parameters and conduct on-site parameter adjustment and setting.
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4. Application Fields
- Power System: Applied to the protection and real-time monitoring of large generators, transformers and power grid nodes, safeguarding the stable operation of the power grid.
- Industrial Automation: Protects industrial motors and critical electrical equipment, effectively preventing unplanned downtime caused by electrical faults and reducing production losses.
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5. Installation and Maintenance Recommendations
- Installation Method: DIN rail mounting is recommended to ensure sufficient ventilation space; avoid excessive stacking of equipment around to prevent heat accumulation.
- Environmental Requirements: Do not install the device in environments with high-concentration corrosive gases; keep ventilation ports unobstructed to maintain a suitable operating temperature.
- Communication Configuration: Configure IP addresses and relevant communication parameters rationally according to the on-site communication network (Modbus/TCP or IEC 61850), so as to ensure accurate and stable data transmission.
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If you would like to learn more about our products and services, please feel free to contact us at any time!
- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
- Whatsapp/Mobile:+86 15359273791
Global renowned brand cooperation
ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
Triconex 丨 Foxboro 丨 ICS Triplex 丨 Hima 丨 Schneider 丨 Yokogawa 丨 Woodward
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Why Choose Our Company
By choosing our company, you will gain access to the following exclusive advantages:
One-Stop Procurement
We offer an extensive range of industrial control products, fully catering to all your procurement needs and eliminating the hassle of sourcing from multiple suppliers.
Professional Custom Solutions
Our dedicated technical team boasts rich industry experience and professional expertise, and we will tailor the most optimal, targeted solutions to match your unique business requirements and operational scenarios.
Thoughtful Full-Cycle Service
We provide comprehensive, worry-free support throughout the entire process, including pre-sales consultation, in-sales coordination and after-sales maintenance, ensuring a seamless and efficient cooperation experience.
Professional Service Commitment
When you partner with us, you will be assigned a dedicated account manager who will take full charge of all your inquiries and requests, serving as your single point of contact for smooth communication.
This account manager has undergone rigorous and comprehensive training, with in-depth knowledge of industrial control product standards, and fully understands your core demands for top-tier quality, cost-effective pricing and prompt delivery timelines.
Your dedicated account manager maintains an open and honest communication attitude, and is always ready to assist you with any issues – no matter how small or trivial the problem may be, we will respond and resolve it promptly.
Fast Turnaround Time
In the industrial control industry, delivery timelines are critical to your business operations. Your dedicated account manager will always provide you with the accurate lead time for every single inquiry, ensuring full transparency of the delivery schedule.
We take great pride in honoring our delivery commitments and adhering to agreed timelines. Moreover, we are flexible to cooperate with any carrier specified by you to guarantee efficient and reliable product delivery.
Competitive Pricing
We have established long-term, stable cooperative partnerships with manufacturers and suppliers across the globe. Leveraging our extensive supply chain resources, we strive to source the most favorable and cost-effective prices for every one of your inquiries, helping you maximize cost savings without compromising on product quality.
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