GE F31X111PSHARG1 Power PCB | OEM New In Box

Description

Product Introduction

This GE F31X111PSHARG1 is a high-capacity power supply board with redundant input capability for GE’s excitation and power conversion control platforms. The “R” suffix designates a redundant input configuration, allowing the board to accept power from two independent sources for high-availability applications. This board is designed for critical systems where a single power source failure cannot be allowed to disrupt operations.

The board provides multiple regulated DC outputs, including high-current +5 V for logic, +24 V for field devices, and ±15 V for analog circuits. The redundant input design includes automatic switchover circuitry that seamlessly transitions between primary and backup power sources without interrupting the outputs. This board is essential for power generation, critical process control, and other high-availability applications where continuous operation is required.

Key Technical Specifications

Key Selling Points & Differentiators

• Redundant Input Capability: Accepts two independent power sources. Automatic switchover within 10 ms ensures uninterrupted operation during primary source failure.
• Independent Status Monitoring: Separate LED indicators for each input source and each output. Allows quick identification of input source status and power health.
• High Current Capacity: Provides up to 10 A on the +5 V logic supply—supports demanding configurations with multiple control and communication modules.
• Quantified Testing Protocol: We test the board with both input sources active and simulate primary source failure. We verify switchover time and output stability.
• Warranty & Support: 2-year functional warranty. We provide installation guidance and redundancy configuration documentation.

Frequently Asked Questions (FAQ)

Q1: What is the difference between the PSHARG1 and the standard PSHAEG1?

A: The PSHAEG1 is the standard high-current power supply with a single input. The PSHARG1 has redundant input capability, allowing connection to two independent power sources for high-availability applications. The PSHARG1 includes automatic switchover circuitry and status monitoring for both inputs.

Q2: How does the redundant input switchover work?

A: The board continuously monitors both input sources. When the primary source voltage drops below a threshold or fails, the board automatically switches to the backup source. The switchover takes less than 10 ms and is transparent to the outputs—the DC voltages remain stable during the transition.

Q3: Do both inputs need to be energized for the board to operate?

A: No. The board can operate with a single input source connected. It will run on the primary input if the backup is not connected. The redundant capability is there if needed—the board functions as a standard power supply with a single input. The status monitoring will indicate a missing backup input.

Q4: Does the board require the two input sources to be synchronized?

A: No, the two inputs can be from independent, unsynchronized sources (e.g., different utility feeds, different UPS systems). The board’s input stages are isolated and handle each source independently. The switchover circuitry does not require synchronization.

Q5: What is the maximum switchover time during input failure?

A: The switchover is typically less than 10 ms. The outputs remain within specification during the transition. Output voltage may dip by less than 5% momentarily. This is fast enough to prevent most control systems from detecting a power interruption.

Q6: Does the board have protection on both inputs?

A: Yes, each input has independent overcurrent, overvoltage, and surge protection. A fault on one input does not affect the other input. This ensures that a power issue on one source does not damage the board.

Q7: Can I use the same voltage on both inputs?

A: Yes, both inputs can be connected to the same nominal voltage (e.g., both 120 VAC, or both 240 VAC). They can also be connected to different voltages (e.g., 120 VAC and 240 VAC) as long as each input is within the board’s input range. We recommend using the same nominal voltage for simplicity.

Q8: Does this board have battery backup?

A: No, this specific variant does not include battery backup. It is a power supply with redundant input capability, but it does not have onboard batteries. If your system requires parameter retention during power loss, you would need a separate memory backup board.

Q9: What is the lifecycle status of the PSHARG1?

A: This board is very rare. GE produced the PSHARG1 in limited quantities for high-availability critical applications. We have a very small batch of new surplus units. Used pulls are practically non-existent. If your system requires redundant input power, we strongly recommend securing a spare. Our new surplus units are fully tested and guaranteed. We do not expect to source more of this variant.

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