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          Active / Available from OEM
          Apter Power supports IS220PPROH1A pricing enquiries while making official General Electric protection-module documentation available for compatibility and replacement assessment.

        IS220PPROH1A

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        General Electric IS220PPROH1A is a Mark VIe backup turbine protection I/O pack that provides an independent overspeed, synchronization-check, and watchdog path for turbine protection systems.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for IS220PPROH1A

        • Manufacturer:
          General Electric
        • Part Number:
          IS220PPROH1A
        • Product Family:
          GE Mark VIe Distributed I/O
        • Product Type:
          Mark VIe backup turbine protection I/O pack
        • Stock:
          1
        • Protection Role:
          Independent backup overspeed, synchronization check, and watchdog
        • Processor Generation:
          BPPB
        • Communication:
          Two independent 10/100 Ethernet ports
        • Power-Supply Range:
          27.4 to 28.6 V dc
        • Maximum Pack Current:
          0.37 A dc
        • Redundancy Arrangement:
          Three-pack TMR protection architecture
        • Simplex Terminal Boards:
          IS200SPROH1A and IS200SPROH2A
        • TMR Terminal Boards:
          IS200TPROH1C and IS200TPROH2C
        • TREA Terminal Boards:
          IS200TREAH1A and IS200TREAH3A
        • Potential-Transformer Input:
          0 to 138 V ac, 5 to 66 Hz with SPRO/TPRO
        • Speed Input:
          -15 to +15 V dc with SPRO/TPRO/TREA
        • Speed-Sensor Supply:
          24 V dc, 25 mA with TPRO
        • Voltage Detection:
          16 to 140 V dc with TREA
        • Emergency-Stop Input:
          18 to 140 V dc with TREA
        • Contact Output:
          28 V dc, 7 A with TREA
        • Updated Successor:
          IS220PPROS1B
        • Successor Software Support:
          ControlST V04.07 or later for PPROS1B
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Protection Architecture Terminal Interfaces Commissioning Fault Isolation

        Features:

        • Backup protection remains separate from normal turbine control so a primary-control problem does not remove the final protective layer.
        • The connected terminal board determines which speed, voltage, emergency-stop, and trip circuits are presented to the pack.
        • Protection channels are coordinated as an engineered set, with each pack retaining its own processing and communication status.
        Maintenance planning should begin by identifying the complete terminal-board assembly and the active voting arrangement, because those details determine both replacement scope and proof-test coverage.

        Network diagnostics establish whether the pack is exchanging data with the control modules, while protection input checks confirm that the independent trip path remains available.

        Any transition to the newer processor generation should be treated as a controlled protection change with controlled software, firmware, and validation steps.

        Availability enquiries for the General Electric IS220PPROH1A Mark VIe backup turbine protection I/O pack can be discussed with Apter Power.
        General Electric IS220PPROH1A Mark VIe backup turbine protection I/O pack Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Independent backup protection paths

        • Overspeed backup: Independent speed measurements support a protective response if the primary turbine-control path is unavailable or disagrees.
        • Synchronization check: Potential-transformer inputs allow a separate comparison before generator breaker closure where the engineered terminal assembly provides that function.
        • Controller watchdog: The protection layer supervises the primary control and can participate in the emergency-trip strategy.
        • Voting arrangement: Three channels are assigned and validated together so maintenance does not unintentionally weaken TMR coverage.
        • Trip-board connection: DC cabling links applicable SPRO or TPRO assemblies to the selected turbine emergency-trip board.

        Matching PPRO to terminal hardware

        • SPRO option: Separate simplex protection boards can be used to build an independently cabled three-channel arrangement.
        • TPRO option: A TMR terminal board groups the three protection packs while maintaining the required channel paths.
        • TREA option: Direct mounting supports a single-board TMR arrangement for the approved aeroderivative protection configuration.
        • Emergency-trip boards: TREG, TREL, or TRES selection follows the gas-turbine or steam-turbine trip hardware used at the site.
        • Catalog verification: The H/S group and terminal-board revision must be copied from the installed assembly before a compatible part is ordered.

        Commissioning sequence

        • Channel inventory: Document speed pickups, voltage sources, emergency-stop circuits, outputs, and the voting assignment before disconnecting hardware.
        • Hardware inspection: Check connector alignment, cable retention, shield routing, and pack seating on every protection channel.
        • Configuration control: Download only the approved protection configuration and confirm the expected pack identity and firmware.
        • Input proving: Inject controlled signals to verify range, polarity, speed indication, and synchronization-check behavior.
        • Trip proof test: Confirm voting, relay operation, alarms, diagnostics, and reset behavior before releasing the turbine.

        Fault isolation

        • Pack attention alarm: Review local indicators and controller diagnostics before disturbing any healthy protection channel.
        • Speed disagreement: Compare pickups, sensor power, wiring, and measured frequency across all redundant channels.
        • Synchronization mismatch: Verify voltage magnitude, frequency, phasing, and the applicable PT wiring at the terminal board.
        • Trip-output problem: Trace the selected terminal-board contact path and emergency-trip-board interface under the approved test procedure.
        • Replacement mismatch: Confirm processor generation and software support when the expected auto-reconfiguration does not occur.
        Description
        Independent backup protection for critical Mark VIe turbine trips is provided by the General Electric IS220PPROH1A Protection I/O Pack. Its role is separate from normal regulator logic so the protection system retains dedicated sensing and decision hardware.

        The internal processor and protection circuitry of IS220PPROH1A work with approved SPRO, TPRO, or TREA terminal assemblies according to the cabinet design. Three packs can be arranged for a voted protection path, with each pack receiving the appropriate speed, voltage, emergency-trip, and output signals.

        Two Ethernet connections carry control and diagnostic information, while the dedicated dc input supplies IS220PPROH1A. Because protection behavior depends on the complete terminal-board and redundancy arrangement, replacement planning must include the installed board suffix, channel use, and the controller configuration rather than relying on the PPRO label alone.

        During service of IS220PPROH1A, verify the power range, network links, field-signal continuity, trip-path state, and front indications before loading configuration. If a later PPRO variant is considered, confirm the required ControlST level and compatibility instead of assuming that the successor can be substituted without project review.
        Revisions

        Revision Part #

        Also known as

        IS220PPROH1A
        IS220PPROH1-A, Series A, Rev A
        Get Parts Quote
        Alternative Names
        GE IS220PPROH1A IS220PPROH1A PPRO IS220PPROH1-A Mark VIe backup protection pack GE PPRO H1A IS220 PPRO H1A backup overspeed I/O pack Mark VIe PPRO module
        Technical notes
        General Electric IS220PPROH1A uses the BPPB processor generation and does not auto-reconfigure when changing to the BPPC-based IS220PPROS1B replacement.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Can General Electric IS220PPROH1A be exchanged for IS220PPROS1B without changes?
        No. General Electric IS220PPROH1A uses the earlier BPPB platform; moving to IS220PPROS1B requires compatible ControlST software, firmware review, terminal-board confirmation, and protection-system testing.
        Why will General Electric IS220PPROH1A not auto-reconfigure after a processor-generation change?
        The BPPB-to-BPPC transition is not an automatic reconfiguration path for General Electric IS220PPROH1A, so the replacement must be engineered and downloaded with the approved software procedure.
        Which terminal board should be checked before ordering General Electric IS220PPROH1A?
        Identify whether General Electric IS220PPROH1A is installed on SPRO, TPRO, or TREA hardware, then record the complete terminal-board catalog and the simplex or TMR arrangement.
        What should be checked after an overspeed-channel alarm on General Electric IS220PPROH1A?
        For General Electric IS220PPROH1A, inspect the speed pickup, wiring and sensor supply, compare channel readings across the protection set, and review pack and network diagnostics before replacement.
        How is a generator synchronization-check issue investigated with General Electric IS220PPROH1A?
        Confirm the potential-transformer signal range, frequency, phasing, terminal-board wiring, and controller indications associated with General Electric IS220PPROH1A before adjusting synchronization logic.
        Can one General Electric IS220PPROH1A be replaced while a TMR set remains operating?
        Any online work on General Electric IS220PPROH1A must follow the site protection procedure, with redundancy health confirmed first and the affected channel inhibited, replaced, downloaded, and proof-tested under authorization.
        What proof tests are needed after servicing General Electric IS220PPROH1A?
        A return-to-service test for General Electric IS220PPROH1A should cover speed inputs, trip voting, emergency-stop and contact paths used by the selected terminal board, watchdog behavior, diagnostics, and controller communication.

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