GE IS200LSGIH1A Gating Interface Card

IS200LSGIH1A GE EX2100e Static Starter Control Gating Interface

Product Introduction

The IS200LSGIH1A functions as a Static Starter Control Gating Interface within the GE EX2100e system. This board connects the UCSB controller to power conversion bridges. First, it manages analog outputs from 0 to 10 V. Next, it handles pretrigger contact inputs and cooling return analog inputs. Moreover, it provides instantaneous overcurrent protection. When an overcurrent occurs, the IS200LSGIH1A opens the 52SS relay. This action cuts input power to the bridges and protects the entire system. Additionally, this board works with three FGPA boards. Together, they control six thyristors on each bridge.

Technical Specifications

The IS200LSGIH1A receives 28V DC from the main power supply. It also passes ±24V DC from the main supply to the FCSA board. The FCSA then powers the LEMs (Local Equipment Modules). This board distributes power through the control cabinet. It powers the UCSB controller, the LSTB board, and the 8-port switch. The manual for this board is GEH-6373. Furthermore, the board meets seismic code requirements for Zone 2312 Zone 4. Its country of manufacture is the United States (USA).

Hardware Features and Connectors

The IS200LSGIH1A includes several notable hardware features. First, it has two distinct sections with four standoffs each. These standoffs connect to daughterboards for expanded functionality. By linking daughterboards, they can communicate with any primary board. This design enhances system flexibility.

Next, the board incorporates three vertical pin connectors. These connectors have attached clips. The clips prevent unintended disconnections and ensure reliable communication. Additionally, four Augat connectors sit behind the vertical pins. These connectors house integrated circuits, diodes, resistors, and capacitors. Each Augat connector has a unique size to accommodate specific components.

The FCSA board sends signals to the IS200LSGIH1A via a copper wire. This wire attaches to a 12-pin plug on the LSGI. Moreover, the LSGI receives data from the FGPA. The FGPA collects SCR voltage information from the FHVA card. This data exchange is crucial for system coordination.

Overcurrent Protection Mechanism

The IS200LSGIH1A excels at providing bridge instantaneous overcurrent protection. This protection works independently of the controller. Therefore, even if the controller fails, the board can still protect the system. During an instantaneous overcurrent event, the LSGI opens the 52SS protection relay. This action removes input power from the bridges. Consequently, the entire system avoids potential damage. This feature makes the IS200LSGIH1A a critical safety component.

Drive System Operation

Primarily, the IS200LSGIH1A serves as a static, adjustable frequency drive system model. It operates with a microprocessor and application-specific software. This combination enables precise speed control of a synchronous motor or generator. The microprocessor makes accurate and dynamic adjustments. As a result, it meets the desired speed requirements effectively. The GEH-6373 Load Commutated Inverter User's Manual is the recommended reference guide for this board.

System Integration with EX2100e

The EX2100e system is GE's latest excitation control system. It serves new and retrofit steam, gas, or hydro generators. The IS200LSGIH1A integrates seamlessly into this system. Excitation control, turbine control, static starter control, and HMI all work together. The ToolboxST application configures and loads the exciter software. On the ToolboxST Component Editor screen, control blocks link together to show signal flow. The ESYS conditions signals from PTs and CTs. Then the controller receives these conditioned signals. The system samples AC waveforms at high speed. It also uses advanced mathematical algorithms to generate required variables.

Mechanical and Environmental Parameters

• Input Voltage: 28V DC

• Power Transfer: ±24V DC from main supply

• Operating Temperature: -30°C to +65°C

• Seismic Code: Zone 2312 Zone 4

• Product Type: PCB

• Country of Manufacture: USA

The IS200LSGIH1A meets stringent seismic requirements. It can withstand Zone 4 seismic events. This makes it suitable for power plants in earthquake-prone regions.

Installation Guidelines

First, mount the IS200LSGIH1A securely inside the EX2100e control cabinet. Use the provided standoffs for daughterboard connections if needed. Next, connect the 28V DC main power supply to the designated input. Then attach the copper wire from the FCSA board to the 12-pin plug on the LSGI. After that, connect the vertical pin connectors to corresponding components. Ensure the attached clips lock firmly. Finally, verify all connections before applying power. Refer to manual GEH-6373 for detailed daughterboard attachment procedures.

Packaging List

• IS200LSGIH1A Static Starter Control Gating Interface (1 unit)

• Anti-static bag (1 piece)

• Protective foam padding (1 set)

• Connector clip set (1 bag)

Note: No certificates or warranty documents are included in the package.

FAQ

1. What happens when the IS200LSGIH1A detects an overcurrent?
It instantly opens the 52SS protection relay. This removes input power from the bridges and protects the system from damage.

2. Can the IS200LSGIH1A work without the UCSB controller?
No. The LSGI functions as an interface between the UCSB controller and power bridges. Both components work together for normal operation.

3. What software configures the EX2100e system with this board?
ToolboxST application configures and loads the exciter software. Control blocks on the Component Editor screen display the signal flow.

4. Does this board support redundant bridge configurations?
Yes. The EX2100e system offers redundant control with simplex bridge options. It also supports N+1 bridge redundancy for small to medium static exciters.

5. Which shipping carriers do you use for the IS200LSGIH1A?
We ship via FedEx, UPS, and DHL. All shipments include full tracking and insurance.