GE F650-A-C-1-1-1-H1-3-X-B-0 is a feeder protection relay in GE Multilin's product series.
Below is an introduction to its working principle, parameters, and application fields:

1. Working Principle: Based on a microprocessor, it collects signals such as current and voltage in the power system and compares them with preset protection settings. When faults or abnormal conditions like overcurrent, overvoltage, undervoltage, or frequency abnormalities are detected, it can act quickly to issue trip commands or alarm signals to protect power equipment and lines. Meanwhile, it can upload real-time data and fault information to the monitoring system through communication interfaces and receive control commands from the monitoring system, enabling remote control and management of feeders.
2. Main Parameters:
1. Power Supply Parameters: Supports a wide range of power inputs. The AC power supply is typically 85-265V AC, and the DC power supply is 85-300V DC, with a frequency of 50/60Hz and a rated power consumption of ≤15W. A 24V DC ±20% power configuration is also available, and redundant power supplies are supported.
2. Protection Parameters: The setting range for phase overcurrent protection is generally 0.1-100A; the setting range for ground overcurrent protection is 0.05-50A. The voltage protection setting range is 50%-120% of the rated voltage, with an operation delay of 0.05-300s. The frequency protection range is 45-55Hz for 50Hz systems and 55-65Hz for 60Hz systems, with a measurement accuracy of ±0.01Hz.
3. Measurement Accuracy: Current measurement accuracy is ±0.2%, voltage measurement accuracy is ±0.2%, and power measurement accuracy is ±0.5%.
4. Communication Interfaces: Equipped with Ethernet, serial ports, etc., supporting communication protocols such as IEC 61850, IEEE 802.1d/RSTP, IEEE 1588 (PTP), SNTP, and IRIG-B.
5. Environmental Parameters: Operating temperature ranges from -40℃ to +85℃, humidity is 5%-95% non-condensing, and it has anti-vibration capability, making it suitable for industrial environments.
6. Physical Dimensions: Approximately 3.5cm x 13cm x 13.5cm, with a weight of about 0.8kg.
3. Application Fields:
1. Question: Is your item new or original?
   Answer: Yes, we sell brand new original products.
2. Question: Is there any inventory available?
   Answer: We have a large warehouse with sufficient inventory of goods to ensure fast delivery.
3. Can you offer a discount?
   Answer: Yes, if your order quantity is large, we can offer a discounted price.
4. Question: What is your delivery time?
   Answer: Due to our sufficient inventory, you can usually receive your order within 3-5 working days.
5. Question: Do you test the product before shipping?
   Answer: Yes, we have a professional technical team that will conduct strict testing on all products before shipment to ensure product quality.
6. Question: If I order a large quantity of goods, can I pay a deposit first?
   Answer: Yes, you can pay the deposit first, and we will arrange the warehouse to stock up for you immediately after receiving your deposit.
7. Question: Can I get a discount?
   Answer: The price of the product is negotiable, and we can provide you with the most favorable price based on the quantity of your order.
8. Question: How much should I pay for the shipping fee?
   Answer: The shipping cost depends on the weight of the goods, the courier company you choose, and the delivery destination.
9. Question: How to contact customer service?
   Answer: You can contact our customer service team through email, phone, or online chat.
10. Power Systems: Used for protection, control, and monitoring of feeders in substations and distribution stations. It can serve as primary protection or backup protection to ensure the safe and stable operation of feeders, and is also applicable to neutral point directly grounded, high-impedance grounded, or resonant grounded systems.
11. Industrial Fields: Such as power supply systems in large industrial enterprises like steel, chemical, and mining industries. It can effectively protect and manage feeders within factories, ensuring the reliability of production power supply.
12. Distributed Generation Systems: Can be used for protection and control of the connection between distributed power sources (such as solar photovoltaic power plants, wind farms, etc.) and the power grid, realizing the safe connection and stable operation of distributed generation.
    
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    Bently Nevada, Triconex, Woodward, Foxboro, Westinghouse, Reliance, Schneider Modicon, ABB, Allen-Bradley, Motorola, GE Fanuc, Yaskawa, Bosch Rexroth, ACSO, Yokogawa, Rexroth, NI, ICS Triplex, Kollmorgen, Mitsubishi, MOOG, Emerson, B&R, Alstom, EPRO, HIMA, Honeywell, Prosoft, AMAT, Siemens, etc.

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