中文版
Description
SR745-W2-P1-G1-HI-A-L-R transformer protection relay
Product Description
SR745-W2-P1-G1-HI-A-L-R Product details are as follows:
Product Overview:
The product is a transformer protection relay introduced by General Electric (GE), model SR745-W2-P1-G1-HI-A-L-R.
It is mainly used to protect transformers in power systems from various faults.
Main parameters:
Rated voltage: 380 V (three-phase four-wire)
Rated frequency: 50 Hz
Transformer capacity: Suitable for transformers from 80 kVA to 1000 kVA
Protection function:
Comprehensive transformer protection, including:
Overload protection: When the current of the transformer exceeds the rated value, the relay will carry out protection action.
Short circuit protection: When a short circuit occurs in the transformer winding, the relay will quickly cut off the faulty circuit.
Differential protection: When the current on one side of the transformer differs from the current on the other side, the relay activates the protection mechanism.
Excitation inrush current protection: When the transformer is excited, it prevents the instantaneous current impact from causing damage to the transformer.
Technical features:
High accuracy: Failure detection and protection accuracy of 2%.
Easy to use: provides an intuitive interface and simple Settings for easy user operation.
High reliability: The use of high-quality components and design to ensure long-term stable operation.
Operating temperature range: -25°C to +50°C, storage temperature range: -40°C to +85°C.
Protection level: IP20.
Physical specifications:
Dimensions: 220 mm x 180 mm x 100 mm
Weight: 3.6kg .
Material: Plastic.
SR745-W3-P5-G5-HI
Product parameter
The SR745-W2-P1-G1-HI-A-L-R product parameters are as follows:
Brands & Manufacturers:
Brand: GE (General Electric)
Manufacturer: GE Multilin
Model and series:
Model: SR745-W2-P1-G1-HI-A-L-R
Series: 745 transformer protection system
Technical specifications:
Analog output large loads: 10 kΩ, 0 to 1 mA, 600Ω, 4 to 20 mA
Chassis: 745 SR series
Size: 9 “H, 7⅛” D, 7 “wide (Note: Specific units may vary by region, inches and feet are used here)
Features enhanced LCD and keyboard
Solid state output is rated up to 15 A, 250 V DC, lasting 500 ms
Weight: According to similar models, it may be around 4.8kg (specific weight needs to refer to official data)
Protection function:
Underfrequency and overfrequency protection
Transformer overload protection
CT correction factor and other features (Note: Specific protection features may vary by model)
Environmental adaptability:
Operating temperature: -40°F to +140°F (converted to -40°C to +60°C)
Humidity: Maintain up to 90% non-condensing humidity
Altitude: Up to 2000m
Chassis features:
Packaged in a 745 SR series case
Protect the relay during the pull out operation to prevent dust from entering and damaging the relay
The case has a glass front panel for easy user monitoring of various LED indicators on the relay front panel
LED indicator:
Can indicate different system states
Alert users when errors occur
Depending on the corresponding state, the LED can be green, amber or stable red
Application field
Applications of the SR745-W2-P1-G1-HI-A-L-R (or similar GE Multilin transformer protection relays) are focused on power systems and the energy industry, especially in scenarios where high accuracy, high reliability and flexible configuration of transformer protection are required. The following are specific application areas:
Power system protection:
Transformer is an indispensable part of power system, and its safe and stable operation is very important to the reliability of power system. SR745 series relays can provide comprehensive transformer protection, including over-current, overload, over-temperature, short circuit, differential and other protection functions, to ensure that the transformer is timely and effective protection under various fault conditions.
Power plant:
Large transformers in power plants require high-performance protection systems to monitor and control their operating conditions. The SR745 series relay can accurately monitor the electrical parameters and status information of the transformer, find potential faults in time and take appropriate protective measures to ensure the stable power supply of the power plant.
Substation:
Transformers in substations are the key equipment to connect different voltage levels of power networks. The SR745 series relay provides precise transformer protection to ensure the safe operation of the substation. At the same time, its flexible configuration and expansion capabilities also adapt to the complex and changeable operating environment and protection needs of the substation.
Industrial and Commercial Power Distribution Systems:
In industrial and commercial distribution systems, transformers are also one of the important power equipment. The SR745 series relay provides a comprehensive range of protection features to ensure a stable and reliable power supply for industrial and commercial users.
Renewable energy systems:
With the rapid development of renewable energy sources, such as wind energy, solar energy, etc., transformers in these systems also need high-performance protection systems to ensure their safe and stable operation. The SR745 series of relays can meet the needs of these special application scenarios and provide customized protection solutions.
Smart Grid and Energy Management:
In smart grid and energy management systems, transformer protection relays not only need to provide basic protection functions, but also need to be able to communicate and coordinate with smart devices and systems. The SR745 series relays support multiple communication protocols and interfaces, enabling seamless integration with smart grid and energy management systems for smarter protection and management.
In summary, the SR745-W2-P1-G1-HI-A-L-R (or similar GE Multilin transformer protection relay) has a wide range of applications in power systems and the energy industry, and its high precision, high reliability and flexible configuration make it ideal for transformer protection.
Please contact Sunny sales@xiongbagk.cn for the best price.
➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com
