IS200TTURH1C GE Mark VIe PTUR Turbine Input Terminal Board

Product Overview

The **GE IS200TTURH1C** is a Primary Turbine Protection Input Terminal Board for the **GE Mark VIe Speedtronic control system**. It provides field signal termination and electrical interfaces for turbine protection and generator synchronization. The board works with the **PTUR I/O Pack** to process turbine speed signals and related protection inputs. The board supports three overspeed trip signals and interfaces with external trip equipment. It also manages the main generator breaker closing circuit through three onboard relays. Its hardware design supports both **Simplex and Triple Modular Redundant (TMR)** configurations. This makes it suitable for turbine control systems with different redundancy requirements.

Technical Specifications

Core Functions and Engineering Features

1. Turbine Speed Signal Acquisition - Accepts signals from **12 magnetic speed pickup devices**. - Detects pulse signals generated by a toothed wheel. - Provides turbine speed information to the PTUR I/O Pack. - Supports turbine speed monitoring and overspeed protection functions.
2. 2. Generator Synchronization Interface - Receives generator voltage and bus voltage signals from potential transformers. - Accepts shaft voltage and shaft current measurement signals. - Provides a 125 VDC control path for the main breaker closing circuit. - Coordinates the K25, K25P and K25A relay circuits. - Supports automatic generator synchronization through external control logic.
3. 3. Overspeed Protection Signal Routing - Routes three overspeed trip signals to the trip board. - Connects with associated turbine protection hardware. - Supports dedicated protection signal paths. - Helps maintain reliable signal transmission within the protection architecture.
4. 4. Redundancy Configuration - Supports Simplex and TMR configurations. - JP1 and JP2 select the relay driver configuration. - WJ1 isolates the K25A control line when required. - Connector arrangements depend on the selected system architecture.

Terminal Connections and Configuration

Each main terminal block contains 24 wiring terminals. The terminals accept conductors up to #12 AWG. Simplex installations use PR3 and JR4 connections. TMR installations use PR3, PS3, PT3, JR4, JS4 and JT4. TB3 supports optional TTL connections. Active speed pickups require an external power supply.

Installation Guide

Proper installation protects signal integrity and turbine control reliability.

1. Verify the complete part number and hardware revision.
2. 2. Confirm Mark VIe system compatibility before installation.
3. 3. Disconnect the relevant power sources before wiring.
4. 4. Check the cabinet wiring against the GEH-6721 documentation.
5. 5. Connect speed pickups, voltage sensors and shaft measurement circuits.
6. 6. Verify terminal polarity and cable shielding.
7. 7. Install PTUR I/O Packs in the correct connectors.
8. 8. Set JP1 and JP2 according to the approved system architecture.
9. 9. Check WJ1 configuration against the K25A control requirements.
10. 10. Inspect all terminal screws and connector locking mechanisms. Always follow the approved turbine protection procedures. Never change redundancy jumpers during normal operation.

Commissioning, Diagnostics and Maintenance

Commissioning should verify electrical connections and protection signal paths. Recommended Commissioning Checks

• Confirm all 12 speed pickup channels.
• - Check generator and bus voltage signal wiring.
• - Verify shaft voltage and current connections.
• - Inspect K25, K25P and K25A relay operation.
• - Confirm the 125 VDC breaker control supply.
• - Test overspeed trip signal routing.
• - Verify the Simplex or TMR connector arrangement.
• - Confirm PTUR communication and controller diagnostics. Practical Diagnostic Reference

Maintenance Recommendations - Inspect connectors for loose contacts and corrosion. - Check terminal blocks for mechanical damage. - Inspect the PCB for contamination or component damage. - Verify jumper positions against approved configuration records. - Review PTUR diagnostic messages during scheduled maintenance. - Record wiring changes and commissioning test results.

Compatibility Information

The **IS200TTURH1C** belongs to the GE Mark VIe turbine control architecture. Compatible equipment and interfaces include: - **PTUR I/O Pack:** Primary turbine protection input processing. - **TRPG:** Turbine primary trip interface. - **TRPA:** Associated turbine protection interface. - **TRPS:** Associated turbine protection interface. - **TRPX:** Trip system interface, subject to the installed configuration. - **52G:** Main generator circuit breaker control circuit. - **Speed Pickup Devices:** Magnetic pulse-rate sensors and supported active pickup arrangements. Important Compatibility Note: The IS200TTURH1C is not the standard terminal board for the original Mark VI system. GE specifies TTURH1B for Mark VI applications. Always verify the installed system architecture before ordering.

Typical Industrial Applications

The **GE IS200TTURH1C** supports turbine protection and synchronization interfaces in industrial power generation. Typical applications include: - Gas turbine speed monitoring and overspeed protection. - Steam turbine protection and control systems. - Generator synchronization and breaker closing circuits. - Turbine speed pickup signal acquisition. - Redundant turbine protection architectures. - Industrial power plant control cabinets. - Generator voltage and shaft measurement interfaces.

Global PLC Spare HUB's Insight

From an engineering perspective, the **IS200TTURH1C** is an important interface in the Mark VIe turbine protection architecture. Its role extends beyond basic field wiring termination. It connects turbine speed measurements, generator electrical signals and protection hardware. Consider a generator synchronization commissioning scenario. The control system receives generator voltage and bus voltage signals through the terminal board. The PTUR I/O Pack processes the relevant inputs. The synchronization logic then evaluates operating conditions and breaker permissives. The K25, K25P and K25A relay circuits participate in the 52G breaker closing path. If the breaker does not close, engineers should inspect the 125 VDC supply first. They should then verify relay operation, interlocks and jumper configuration. For a TMR installation, engineers should also inspect all R, S and T channel connections. An incorrect jumper setting can prevent the intended relay configuration. This approach helps engineers isolate wiring faults from controller configuration problems. It also reduces unnecessary replacement of functioning hardware. **Our selection recommendation:** Confirm the Mark VIe architecture, PTUR interface, terminal wiring and hardware revision before purchasing.

Packaging and Warranty

Standard Supply Package - 1 × GE IS200TTURH1C Turbine Protection Input Terminal Board. - Protective industrial packaging. - Product identification and shipping documentation. - Technical documentation, when available and included with the order.

Commercial Warranty - **Warranty Period: 12 Months.** - Product identification and order traceability. - Technical assistance for model and compatibility verification. - Warranty support according to the agreed sales terms.

Shipping and Delivery - Shipping Methods: **FedEx, UPS and DHL**. - Dispatch Time: **24–48 Hours** after order confirmation and stock verification. - International shipping support. - Protective packaging for electronic components. - Tracking information provided after dispatch.

Frequently Asked Questions

Q1: What is the main function of the GE IS200TTURH1C? The IS200TTURH1C provides primary turbine protection input connections for the GE Mark VIe system. It interfaces with speed pickups, generator voltage signals, shaft measurements and trip hardware. It also supports generator breaker synchronization circuits.

Q2: Can the IS200TTURH1C work with the original GE Mark VI system? No. The H1C version is specified for Mark VIe applications. GE identifies TTURH1B for the original Mark VI system. Check the controller generation before placing an order.

Q3: How can engineers troubleshoot a generator breaker closing failure? Start by checking the 125 VDC supply and external breaker permissives. Then inspect K25, K25P and K25A relay circuits. Verify JP1, JP2 and WJ1 settings against the approved wiring diagram. Finally, check PTUR diagnostics and external interlocks.

Q4: What should buyers check before ordering the IS200TTURH1C? Confirm the complete part number and hardware revision. Check Mark VIe compatibility and PTUR interface requirements. Compare terminal layouts and connector arrangements with the installed board. Also confirm Simplex or TMR configuration before replacement.

Q5: Does the IS200TTURH1C require additional I/O hardware? Yes. The board works with PTUR I/O Packs for turbine protection input processing. Associated trip boards and external sensors depend on the application. Verify the complete hardware configuration before installation.

Request a Quote from Global PLC Spare HUB

Looking for the **GE IS200TTURH1C Mark VIe Turbine Protection Input Terminal Board**? Global PLC Spare HUB supplies industrial automation and turbine control components for power generation applications. Contact our sales team for: - Product availability and pricing. - Part number and revision verification. - Mark VIe compatibility assistance. - International shipping arrangements. - Technical product information. **Contact Global PLC Spare HUB today for pricing and delivery information.**

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