GE IS215VPROH1BD Turbine Protection Module | Mark VI | Oiltech

Product Overview

• IS215VPROH1BD – Emergency Turbine Protection Module for GE Mark VI.
• Provides triple redundant overspeed protection.
• Operates independently from the main turbine control system.
• Controls trip solenoids through TREG terminal board.
• Input: 125 V dc (70-145 V dc). Output: 5 V dc and 28 V dc.

Technical Specifications

• Brand: General Electric
• Model: IS215VPROH1BD
• Series: Mark VI
• Type: Emergency Turbine Protection Board (VPRO)
• Frame Rate: Up to 100 Hz
• MPU Pulse Rate: 2 Hz to 20 kHz
• Input Supply: 125 V dc (70-145 V dc)
• Output: 5 V dc and 28 V dc
• MPU Output Voltage: 150 V p-p @ 60 KΩ load
• Max Short Circuit Current: 100 mA
• MPU Output Resistance: 200 Ω with 85 mH inductance

Protection System Architecture

• Triple redundant VPRO boards in a separate protection module.
• Works with TPRO and TREG terminal boards.
• Controls up to 3 trip solenoids.
• TREG provides 125 V dc positive side to solenoids.
• TRPG provides negative side for complete circuit.
• Either board can initiate a turbine trip.

Relay Voting Mechanism

• Controls 12 relays on TREG terminal board.
• 9 relays organized into 3 groups of 3.
• Forms a voting mechanism for trip decisions.
• Requires consensus before initiating critical actions.
• Enhances reliability and prevents false trips.

MPU Characteristics & Signal Conditioning

• Output resistance: 200 Ω with 85 mH inductance.
• Output voltage: 150 V p-p at 60 KΩ load.
• Energy is insufficient to generate a spark – safe operation.
• Max short circuit current limited to 100 mA.
• Normal mode load of 400 Ω reduces input voltage.
• Prevents overvoltage on downstream components.

Ethernet & System Integration

• Features Ethernet connection for IONet communications.
• Enables data exchange with control modules.
• Enhances monitoring and management capabilities.
• Integrates with broader Mark VI control network.

Installation & Cabling

• Proper cabling between TPRO, TREG, and VPRO is critical.
• Ensures seamless communication and coordination.
• Enables timely response to emergency situations.
• Follow GE wiring diagrams for correct connections.

Oiltech Controls Review

• Reliability: Triple redundant design ensures maximum turbine safety.
• Performance: Fast 100 Hz frame rate for real-time protection.
• Integration: Ethernet IONet simplifies system connectivity.
• Value: Critical safety component for Mark VI turbines.

Oiltech Controls’s Insight

• This VPRO board is the last line of defense for turbine overspeed.
• Always test MPU output voltage before installation.
• Verify the voting relay configuration matches your application.
• Keep spare VPRO boards to minimize turbine downtime.
• Common issue – check cabling between TPRO/TREG and VPRO.

Compatible Systems & Applications

• Systems: GE Mark VI, Speedtronic™ turbine control.
• Applications: Gas turbine overspeed protection, steam turbine emergency trip.
• Works with TPRO and TREG terminal boards.
• Used in power generation, oil & gas, and industrial facilities.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spares.
• Global shipping with reliable logistics.
• All items tested before shipment.
• Surplus and refurbished options available.
• 12-month warranty on every product.
• Expert support for obsolete control systems.

Warranty & Shipping

• 12-month warranty against defects.
• Ships within 24-28 hours of order.
• Express via FedEx, UPS, or DHL.
• Tracking provided upon shipment.

Professional FAQ

• Q: What is the input voltage range for this board?
• A: Accepts 125 V dc with operating range of 70-145 V dc.
• Q: How does the voting mechanism work?
• A: 9 relays in 3 groups of 3 – requires consensus to trip.
• Q: Can this board connect to IONet?
• A: Yes, it has Ethernet for IONet communications.
• Q: What is the maximum MPU pulse rate?
• A: Supports 2 Hz to 20 kHz pulse rate range.
• Q: Is this board redundant?
• A: Yes, the system uses triple redundant VPRO boards.

Experience-based Buying Guide

• Confirm your turbine uses Mark VI control system.
• Check if you have TPRO and TREG terminal boards.
• Verify MPU output voltage matches your sensors.
• Test all relay groups before commissioning.
• Stock spare boards for critical turbine protection.

For inquiries:
info@oiltechcontrols.com |
+86 158 8020 0923

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