High – Sensitivity Detection: The IS200EROCH2A has a high – sensitivity current sensing mechanism. It can accurately detect even small deviations from the normal current levels in the exciter circuit. For example, it can detect an over – current condition that is just 10% above the rated current, allowing for early intervention and prevention of potential damage.
Fast Response Time: In the event of an over – current situation, the board has a very fast response time. It can analyze the current data and trigger the appropriate protective actions within milliseconds. This rapid response helps minimize the duration of the over – current condition and reduces the risk of damage to the generator and associated equipment.
Reliable Protection: Built with high – quality components and a robust design, the IS200EROCH2A provides reliable over – current protection. It can withstand electrical noise, voltage spikes, and other disturbances in the industrial environment without false triggering. In long – term operation, it has a very low failure rate, ensuring continuous protection for the generator’s excitation system.
Flexible Configuration: The board allows for flexible configuration of the over – current protection settings. Users can set the over – current threshold, the time delay for tripping the circuit breaker, and other parameters according to the specific requirements of the generator and the excitation system. This flexibility makes it suitable for a wide range of generator types and power ratings.
The IS200EROCH2A is a product from GE that plays a crucial role in generator excitation control systems. As an exciter over – current protection and control board, it is designed to safeguard the generator’s excitation system from excessive current conditions.
This board continuously monitors the current flowing through the exciter circuit. When it detects an over – current situation, which could be caused by a short – circuit, a sudden load change, or a malfunction in the excitation system itself, the IS200EROCH2A takes immediate action. It can trigger protective measures such as tripping a circuit breaker or adjusting the excitation current to bring the system back to a safe operating state. By doing so, it helps prevent damage to the generator’s windings, the exciter, and other associated components, ensuring the long – term reliability and safety of the power generation process.
2. Product Parameters
Parameter
Details
Power Supply
Typically operates on a 24V DC power supply to ensure stable and reliable operation of its internal circuits.
Input Signals
Accepts current signals from the exciter circuit, usually in the form of analog current signals (e.g., 0 – 5A or 4 – 20mA) that represent the magnitude of the current flowing through the exciter. It may also receive digital input signals related to system status and control commands from other parts of the excitation control system.
Output Signals
Generates output signals to activate protective devices. These can include digital signals to trip circuit breakers or send alarms to the control room. The output signals are designed to be compatible with the control interfaces of the associated protective equipment.
Communication Interface
Equipped with an RS – 485 serial communication interface, enabling it to communicate with other control devices in the excitation system or a central monitoring station. This allows for remote monitoring of the over – current protection status, configuration of protection settings, and diagnostic functions.
Operating Temperature Range
Designed to operate within a temperature range of – 20°C to 60°C, making it suitable for use in various industrial environments, from cold outdoor power plants to warm indoor generator rooms.
3. Advantages and Features
High – Sensitivity Detection: The IS200EROCH2A has a high – sensitivity current sensing mechanism. It can accurately detect even small deviations from the normal current levels in the exciter circuit. For example, it can detect an over – current condition that is just 10% above the rated current, allowing for early intervention and prevention of potential damage.
Fast Response Time: In the event of an over – current situation, the board has a very fast response time. It can analyze the current data and trigger the appropriate protective actions within milliseconds. This rapid response helps minimize the duration of the over – current condition and reduces the risk of damage to the generator and associated equipment.
Reliable Protection: Built with high – quality components and a robust design, the IS200EROCH2A provides reliable over – current protection. It can withstand electrical noise, voltage spikes, and other disturbances in the industrial environment without false triggering. In long – term operation, it has a very low failure rate, ensuring continuous protection for the generator’s excitation system.
Flexible Configuration: The board allows for flexible configuration of the over – current protection settings. Users can set the over – current threshold, the time delay for tripping the circuit breaker, and other parameters according to the specific requirements of the generator and the excitation system. This flexibility makes it suitable for a wide range of generator types and power ratings.
4. Application Areas and Application Cases
Application Areas: The IS200EROCH2A is mainly used in power generation facilities, including thermal power plants, hydropower plants, and gas – fired power plants. It is also applicable in industrial settings where large – scale generators are used for self – power generation, such as in large manufacturing plants, refineries, and data centers.
Application Case: In a hydropower plant, the IS200EROCH2A is installed in the generator’s excitation system. One day, due to a fault in the exciter’s internal wiring, an over – current situation occurred. The IS200EROCH2A quickly detected the abnormal current increase. Within milliseconds, it sent a signal to trip the circuit breaker, isolating the faulty part of the excitation system. This action prevented further damage to the generator and allowed the maintenance team to safely troubleshoot and repair the fault.
5. Comparison with Competing Products
Compared to similar products in the market, the IS200EROCH2A has several advantages. In terms of detection sensitivity, it can detect over – current conditions more accurately, providing earlier protection. Its fast response time is superior to many competing products, which can significantly reduce the potential damage caused by over – current events. The reliability of the IS200EROCH2A is also higher, with better resistance to environmental disturbances and a lower probability of false triggering. Additionally, its flexible configuration options make it easier to adapt to different generator setups and protection requirements.
6. Selection Suggestions
Compatibility: Ensure that the IS200EROCH2A is compatible with your existing generator excitation system. Check the communication interfaces, power supply requirements, and input/output signal types to avoid integration issues.
Performance Requirements: Evaluate your specific application requirements, such as the required over – current detection sensitivity, response time, and the power rating of the generator. Make sure the IS200EROCH2A can meet these performance criteria.
Budget: Consider your budget when selecting the product. While the IS200EROCH2A offers high – quality performance, it is important to ensure that it fits within your financial constraints.
7. Precautions
Installation: Follow the installation instructions in the product manual carefully. Incorrect wiring, improper grounding, or incorrect mounting can cause damage to the board or lead to false triggering of the over – current protection.
Operating Environment: Keep the operating environment of the IS200EROCH2A within the specified temperature and humidity range. Avoid exposing it to strong electromagnetic interference, corrosive substances, and excessive dust, as these can degrade the performance and lifespan of the board.
Maintenance: Regularly inspect the board for any signs of damage, loose connections, or abnormal operation. Follow the recommended maintenance schedule, including cleaning and component testing, to ensure the long – term reliable operation of the IS200EROCH2A.
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