IC3600SASC1C - Micro Synchronizer card

SPECIFICATIONS

Part No.: IC3600SASC1C
Manufacturer: General Electric
Product Type: Microsynchronizer Board
Availability: In Stock
Series: VersaMax

Functional Description

IC3600SASC1C is a Microsynchronizer Board developed by GE. It is a part of GE Mark I and II series. The primary function is to synchronize the frequency and phase angle to a common bus, ensuring stable and reliable power generation. It helps in avoiding damage to the electrical grid and machinery by aligning the generators' outputs in terms of voltage, frequency, and phase.

Synchronizer: Key Role and Microprocessor Advancements

A synchronizer is a critical component in generator drive units, used to ensure that a generator is properly synchronized with the electrical grid before it is connected. This process involves matching the generator’s frequency and phase with the line frequency, allowing for a smooth and safe connection. The synchronizer automatically closes the generator breaker when the phase and slip relationships are within acceptable limits, ensuring the generator is safely brought online.

Importance of Synchronization

Synchronization is vital because improper synchronization can lead to serious damage to the generator, transformer, and associated electrical equipment. If the generator is not synchronized with the grid, the resulting electrical mismatch could cause mechanical stress, equipment damage, or even catastrophic failures. The ability to accurately synchronize generators to the grid before they are connected is therefore an essential aspect of power generation systems.

Traditional Electromagnetic Synchronizing Relays

In the past, electromagnetic synchronizing relays were used in many systems. These relays provided a mechanical means of detecting the correct synchronization conditions. While they were functional, they had limitations in terms of reliability, accuracy, and the ability to handle more complex operations. Their performance could degrade over time due to mechanical wear, and they lacked the flexibility to adjust to changing system conditions dynamically.

The Microprocessor-Based Synchronizer

Recently, a microprocessor-based synchronizer has been developed and tested in the field, offering significant improvements over traditional electromagnetic relays. The microprocessor-based synchronizer leverages digital technology, allowing for superior performance and enhanced reliability. It incorporates advanced algorithms and software that enable real-time monitoring and more precise control of synchronization parameters, making it more capable of handling complex scenarios and providing better protection to the system.

Working Principle

• The microprocessor-based synchronizer works by matching the turbine speed to the line frequency and then commanding the breaker to close once the conditions are right. The system receives input signals from the generator and line potential transformers, which measure the electrical characteristics of both the generator and the grid. These signals are passed through an isolation module, which provides electrical isolation between the high-voltage systems and the low-voltage control systems. The isolation module also houses the relay that sends the close command to the breaker once synchronization conditions are met.
• After filtering out transient signals that might cause false readings, the input signals are converted into square waves. These square waves are then processed by a microcomputer card that performs the critical task of determining the phase, slip, and rate of change between the generator and the grid. This data is used to assess whether the generator is within acceptable synchronization limits, and when these limits are met, the system sends a command to close the breaker, connecting the generator to the grid.

Advantages of the Microprocessor Synchronizer

• Higher Accuracy and Precision: The microprocessor-based synchronizer is much more precise than electromagnetic relays, as it can process data continuously and handle even the slightest variations in the generator’s output.
• Improved Reliability: The absence of mechanical components in the microprocessor-based synchronizer eliminates the wear and tear associated with electromagnetic relays. This increases the longevity and reliability of the system.
• Advanced Signal Processing: The microprocessor can handle more complex signal processing, including the rejection of transients and noise, ensuring that only accurate, relevant data is used in the synchronization process.
• Enhanced Flexibility: Digital technology allows the system to easily adapt to changes in the operating environment, offering better performance in dynamic power grids or during system disturbances.

The WOC team is always available to help you with your Mark I and II requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IC3600SASC1C?
It is a Microsynchronizer Board developed by GE.

Why is synchronization important in power generation?
Proper synchronization is crucial because improper synchronization can cause mechanical stress, electrical mismatches, and significant damage to the generator, transformer, and connected equipment. It ensures a safe and stable connection between the generator and the electrical grid.

How does a microprocessor-based synchronizer work?
The microprocessor-based synchronizer works by receiving input signals from the generator and the electrical grid (via potential transformers). It processes these signals, converting them into square waves. The microprocessor then calculates the phase, slip, and rate of change, determining whether synchronization conditions are met. Once the conditions are right, it sends a command to close the generator breaker and connect it to the grid.