Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Compatible Platform | GE Speedtronic Mark VI Turbine Control System |
| IS200VPROH2B Function | Main turbine protection board |
| IS200VPROH1BEF Function | VPROH daughter interface board |
| IS200VPWRH1AHD Function | Chassis redundant power supply board |
| VPWRH Input | 120/240 VAC dual isolated input, 50/60Hz |
| VPWRH Output | 24 VDC @10A, 5 VDC @3A |
| Operating Temperature | -20°C to +65°C |
| Relative Humidity | 5–95% RH, non-condensing |
| Mounting | Standard Mark VI rack slot installation |
| Protection Circuits | Overvoltage, overcurrent, short-circuit, overtemperature |
| Compliance | IEC 61010, UL 508 industrial control standards |
Product Introduction
This set of GE IS200VPROH2B, IS200VPROH1BEF and IS200VPWRH1AHD boards are core hardware assemblies for legacy Speedtronic Mark VI turbine control racks. The VPROH boards execute critical turbine protection logic; the VPWRH board delivers regulated power to the entire chassis.
Together they maintain continuous protection monitoring and stable backplane power. Loss of either the protection board or power supply triggers turbine trips, so matched spare boards reduce planned and unplanned outage risk on running turbine assets.
GE IS200VPROH2B IS200VPROH1BEF IS200VPWRH1AHD
Application Scenarios & Field Experience
Part 1 (Narrative Paragraph)
Power plants running Mark VI gas or steam turbines face single-point failure risk from aging PCB components. A failing protection board or power card can force unplanned turbine shutdown. Operators keep matched spare assemblies to swap hardware during scheduled outages and avoid extended downtime.
Part 2 (Numbered List)
- Combined cycle power generation: Gas turbine Mark VI cabinets, overspeed and bearing protection monitoring during startup and base load.
- Refinery captive power plants: Steam turbine control racks, emergency trip logic for process steam turbines.
- LNG compression facilities: Gas turbine driven compressors, continuous vibration and speed protection monitoring.
- District energy plants: Boiler steam turbine controls, stable chassis power and fault detection for safety trips.
Part 3 (Short Field Story)
A combined cycle plant experienced intermittent power rail fluctuations traced to a degraded IS200VPWRH1AHD board. The turbine stayed online for 72 hours while the site prepared a spare set including IS200VPROH2B and IS200VPROH1BEF. They swapped the full assembly during a planned brief outage. After replacement, all trip channels passed validation testing and no nuisance trips occurred in the following operating cycle.
GE IS200VPROH2B IS200VPROH1BEF IS200VPWRH1AHD
GE IS200VPROH2B IS200VPROH1BEF IS200VPWRH1AHD
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Check OEM part marking, labels, board traces and connector pins. Look for solder rework, burn marks or corrosion. Complete anti-counterfeit marking cross-check.
- Live Rig Testing: Load all three boards into a Mark VI test chassis. Apply rated AC input, verify 24V and 5V output, run protection channel self-tests and trip logic simulation.
- Firmware Verification: Read and record hardware revision and firmware ID for each PCB. Confirm revision compatibility against the target site’s existing rack documentation.
- ESD-Safe Packaging: Wrap each board individually in anti-static shielding bags. Use foam cushioning, apply ESD warning labels and pack in rigid export-grade cartons.
Frequently Asked Questions (FAQ)
Q1: Are IS200VPROH2B and IS200VPROH1BEF interchangeable with Mark VIe hardware? A: No. These boards are built exclusively for Mark VI. They will not fit or operate on Mark VIe racks. Confirm your control platform and backplane version before ordering.
Q2: What warranty do you provide for these GE Mark VI boards? A: We offer a 12-month warranty covering inherent hardware defects. Damage from improper installation, overvoltage transients, or incorrect rack wiring is excluded.
Q3: Can these boards ship immediately? A: Stock status is confirmed at order confirmation. If units are in stock, shipment can start within 1–3 business days. If stock is depleted, we communicate lead times before you confirm the order.
Q4: Can firmware or hardware revision mismatch cause protection channel failures? A: Hardware revision mismatch creates the highest risk. Even if power tests pass, mismatched VPROH revisions can disable overspeed or vibration trip functions. Cross-reference part suffix and revision with your existing installed cards.
Q5: Can I hot-swap the IS200VPWRH1AHD power board while the turbine stays online? A: Hot swap is not permitted unless your rack uses fully redundant power channels and site lockout procedures are approved. Removing this board on a non-redundant rack will drop control power and trigger a full turbine trip.
