IS200VPROH1A | New Surplus GE VPRO PCB

Description

Product Introduction (Anti-Template)

When your turbine protection system needs to trip, every millisecond counts—and this board is designed to handle protection relay outputs with the reliability and speed that safety systems demand. The IS200VPROH1A is the VPRO (Versatile Protection Relay Output) variant for the Mark VIe system, a termination board designed for protection relay and trip signals in turbine safety systems. This board handles the interface between the Mark VIe controller and protection relays, emergency trip circuits, and safety interlocks.

The ‘H1A’ designation indicates a specific variant with the ‘A’ revision. The key feature of the VPRO series is its safety-grade design—redundant trip paths, high-integrity signal conditioning, and fail-safe output behavior. The ‘A’ revision brings improved trip response time and updated component selection. Compared to the base IS200VPROH1, the ‘A’ offers faster trip activation and better reliability. This board is a drop-in replacement for the IS200VPROH1, with no software changes required.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement: IS200VPROH1 — The base revision without the ‘A’ suffix. Identical pinout, mounting, and software interface. The ‘A’ revision has improved trip response time. No software changes required.

⚠️ Software Compatible: IS200TRPSH1A — Power switching relay board. Similar but may have different safety ratings. Verify compatibility with your protection system.

⚠️ Software Compatible: IS200TREGH1A — General-purpose relay board. Not safety-rated. Requires software reconfiguration and may not meet safety requirements.

⚠️ Software Compatible: IS200TBCI1A — General-purpose I/O. Requires external protection relays and complete rework. Budget 8-12 hours.

❌ Hardware Incompatible: IS200TBQGH1A — Excitation termination board. Different pinout and application.

Frequently Asked Questions (FAQ)

Q: What makes the VPRO board different from standard relay boards?

A: The VPRO is designed for safety-critical protection applications with redundant trip paths, high-integrity signal conditioning, and fail-safe output behavior. Standard relay boards (TREGH, TRPG) are general-purpose and not safety-rated.

Q: What improvements does the ‘A’ revision have over the base VPROH1?

A: The ‘A’ revision has improved trip response time for faster protection activation and updated component selection for better reliability.

Q: Can I replace a VPROH1 board with a VPROH1A without any changes?

A: Yes. The ‘A’ is a drop-in replacement. No software changes, no wiring changes, no configuration changes.

Q: Is the VPRO board hot-swappable?

A: We strongly advise against hot-swapping protection relay boards. Interrupting protection circuits while the turbine is running is a safety risk. Power down the cabinet segment before swapping.

Q: What bench testing should I do before installing a VPRO board?

A: Standard protection relay protocol with safety verification. First, visual inspection. Second, verify continuity. Third, apply power and verify trip response timing—should be faster than standard relays. Fourth, test fail-safe behavior by removing power and verifying protection state.

Q: How do I verify I’m getting a genuine VPRO board?

A: Check component markings against GE documentation. Weigh the board; should be about 365 grams. Look for the GE holographic security label.

Q: Where do I find the official wiring diagram for the VPROH1A?

A: GE document GEK-130690 covers the VPRO series. The H1 variant is detailed in the section specific to that configuration. Pay special attention to the safety circuit wiring requirements. Always cross-reference against your cabinet’s as-built drawings. Verify every channel before terminating.

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