General Electric VOLT-PAC 9T92Y51G3

The General Electric VOLT-PAC 9T92Y51G3 is a variable autotransformer engineered for precise voltage regulation across industrial and commercial electrical systems. This unit delivers continuously adjustable output from 0–100% or 0–117% of line voltage with ±1% accuracy and up to 99% efficiency. The 9T92Y51G3 maintains output waveform fidelity identical to input, independent of load power factor between 0.5 lagging and 0.5 leading.

Designed for reliability and longevity, the autotransformer features a strip-wound silicon steel core for minimal electrical losses and a gold-plated precision brush track that ensures low resistance and extended service life. Self-lubricating nylon bearings enable smooth rotation, while UL-recognized insulation systems meet stringent safety standards. Thermal management is handled by a thermally isolated radiator mounted to the shaft, which also serves as the brush holder.

## Technical Specifications

• **Voltage Adjustment Range:** 0–100% or 0–117% of line voltage
• **Output Accuracy:** ±1%
• **Efficiency:** Up to 99%
• **Frequency:** Standard 50/60 Hz operation
• **Current Rating:** Primary 2.5 A / Secondary 2.5 A (120V model)
• **Overload Capability:** 2.5× rated current for five minutes
• **Waveform Fidelity:** Precise reproduction of input waveform; no distortion
• **Load Power Factor Sensitivity:** Insensitive from 0.5 lagging to 0.5 leading
• **Core Material:** Strip-wound silicon steel
• **Brush Track:** Gold-plated precision wound surface
• **Insulation:** UL-recognized systems
• **Bearings:** Self-lubricating nylon
• **Base:** Cast aluminum for heat dissipation

## Key Features

• Continuously variable output from zero to rated voltage
• Minimal harmonic distortion with clean waveform reproduction
• Manual fingertip control or motor-driven operation
• Availability in open or enclosed configurations
• Panel mount, surface mount, or back-of-panel mounting options
• KVA ratings from 1.5 through 500 KVA

## Typical Applications

Voltage regulation for equipment testing, industrial power conditioning, and load simulation where stable, adjustable voltage is required across varying power factors.