IS220PPROH1A Backup Turbine Protection (PPRO) I/O pack

Part No.: IS220PPROH1A
Manufacturer: General Electric
Country of Manufacture: United States
Product Type: Backup Turbine Protection (PPRO) I/O pack
Series: Mark VIe

IS220PPROH1A is a Backup Turbine Protection (PPRO) I/O pack developed by GE. The Backup

Turbine Protection (PPRO) I/O pack and associated terminal boards offer an independent backup Overspeed

protection system, as well as a backup check for generator synchronization to a utility bus. They also serve as

an independent watchdog for the primary control. Three triple modular redundant (TMR) PPRO I/O packs

mounted to separate simplex protection (SPRO) terminal board or three PPROs put on a TMR TPROH#C terminal

board constitute a typical protection system. Each SPRO or TPROH#C is connected to the designated

emergency trip board through a cable with DC-37 pin connections on both ends:

• TREG stands for Gas Turbine Emergency Trip Terminal Board.
• TREL: Terminal Board for Large Steam Turbine Emergency Trips
• TRES: Terminal Board for Small/Medium Steam Turbine Emergency Trips

A different configuration places three PPRO I/O packs directly on TREA for a single-board TMR protection system.

For IONet communications with the control modules, the PPRO includes an Ethernet connection.

IS220PPROS1B

Functional Description

• Two Ethernet ports, a power supply, a local processor, and a data acquisition board are included in
• the I/O pack. This design simplifies or eliminates much of the previously required instrumentation for
• connecting to field equipment, as well as improving operational reliability and lowering long-term maintenance costs.
• The IS220PPROH1A is utilized in Aeroderivative Turbine Emergency Trip applications and is commonly
• used with the TREAH terminal board. The component can be connected to terminal blocks that are either
• barrier or box type. For voltage sensing, the part has field-wiring restrictions that limit cable length to 1,000
• feet of 18 AWG wiring. When switching from a BPPB P-Pack to a BPPC P-Pack, the component cannot be auto-reconfigured.
• The front faceplate of the part is marked with the component id number and many LED indications. These
• are arranged in pairs on the front faceplate. PWR/ATTN is the first pair, LINK/TxRx and ENET 1 is the second, and
• LINK/TxRx and ENET2 is the third. The final component is the IR port, which is placed at the bottom of the faceplate.
• The part is equipped with a high-speed processor and two 10/100 Ethernet ports that are completely
• independent. A hardware reset circuit and a watchdog timer are included in the pack. An inbuilt sensor keeps track of the temperature.

Compatibility

The PPRO I/O pack comprises one of the compatible BPPx processor boards listed below:

• The PPROH1A is equipped with a BPPB processor board.
• The PPROS1B includes a functionally compatible BPPC processor board that is compatible with the ControlST software suite V04.07 and later.