Name: GE DS200SHVIG1B EX2000, SCR Bridge Interface Card - RUNSHENG
Price: 8888.00 CNY
Availability: InStock

GE DS200SHVIG1B EX2000, SCR Bridge Interface Card

The board’s function is fundamental to the precise and safe control of a synchronous generator’s field, ensuring proper voltage regulation and stability.

SCR Firing Control: The primary role of the DS200SHVIG1B is to generate and transmit precisely timed firing pulses to the gates of the SCRs in the power bridge. The timing of these pulses, known as the firing angle, directly controls the amount of power delivered to the generator’s field, which in turn regulates the generator’s output voltage.
High-Voltage Isolation: A key safety feature of this card is its ability to provide galvanic isolation between the sensitive control boards (like the LDC or SDCC) and the high-voltage, high-current power section. This protects the control system from harmful electrical noise, voltage spikes, and fault conditions from the power bridge.
Signal Conversion and Attenuation: The card handles the conversion of analog signals. It takes in signals from the power connect card (PCCA) and instrumentation card and converts them into frequencies for the drive’s power supply to respond accordingly. It also provides attenuation for bridge AC voltage and DC bridge voltage, as well as isolation for field current shunt signals. This ensures accurate and safe feedback to the control logic.

الوصف

The GE DS200SHVIG1B is an SCR High-Voltage Interface Board for the EX2000 Excitation System and the Mark V Turbine Control System. This card is a vital component that provides the critical link between the low-voltage control electronics and the high-voltage SCR (Silicon Controlled Rectifier) power bridge.

Technical Breakdown ⚡️

The board’s function is fundamental to the precise and safe control of a synchronous generator’s field, ensuring proper voltage regulation and stability.

SCR Firing Control: The primary role of the DS200SHVIG1B is to generate and transmit precisely timed firing pulses to the gates of the SCRs in the power bridge. The timing of these pulses, known as the firing angle, directly controls the amount of power delivered to the generator’s field, which in turn regulates the generator’s output voltage.
High-Voltage Isolation: A key safety feature of this card is its ability to provide galvanic isolation between the sensitive control boards (like the LDC or SDCC) and the high-voltage, high-current power section. This protects the control system from harmful electrical noise, voltage spikes, and fault conditions from the power bridge.
Signal Conversion and Attenuation: The card handles the conversion of analog signals. It takes in signals from the power connect card (PCCA) and instrumentation card and converts them into frequencies for the drive’s power supply to respond accordingly. It also provides attenuation for bridge AC voltage and DC bridge voltage, as well as isolation for field current shunt signals. This ensures accurate and safe feedback to the control logic.
Field Current Feedback: It’s responsible for isolating field current shunt signals to feed them back to the control system for metering and regulation. This feedback is essential for the closed-loop control of the exciter.

In essence, the DS200SHVIG1B acts as a guardian and a precision conductor, ensuring that the control system’s commands are safely and accurately executed by the high-power SCRs, enabling the EX2000 to maintain stable and reliable generator operation.