GE IS200DRLYH1AED Relay Termination Board

الوصف

The GE IS200DRLYH1AED Relay Termination Board is a component manufactured by General Electric (GE), primarily used in their Mark VI Speedtronic Turbine Control System series.

Key Characteristics

• Function: It is a Relay Terminal Board (Functional Abbreviation: DRLY). Its main purpose is to interface the control system with field devices that require relay outputs, such as solenoids or motor starters.
• Relays: The board is typically populated with 12 relays. The relays have Form C (two-pole double throw) dry contacts, meaning they provide both Normally Open (NO) and Normally Closed (NC) contacts.
• Coil Voltage: The relay coils are nominally rated for 24 V dc.
• Mounting: It is a wall-mountable board, contrasting with DIN-rail mounted versions.
• Connection: It connects to the control system processor boards (like VCC, VCRC, or VTUR) via a single 37-pin cable connector.
• Feedback/Monitoring: The IS200DRLYH1AED is a Simplex Relay Output terminal board. It generally does not have suppression unless externally supplied. It includes a yellow LED for each relay to indicate voltage across the coil, and a single green LED to show the 28 V dc power is reaching the relay coils from the I/O board.

Application Context

The Mark VI Speedtronic system is a management platform created by GE for controlling and protecting gas and steam turbines. The IS200DRLYH1AED, therefore, plays a vital role in providing the necessary relay outputs for the physical control and sequencing of the turbine and its auxiliary equipment within a power plant or industrial setting.