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Voltage THD | Detected Faults

Written by Volta Insite
16/04/2025

Voltage Total Harmonic Distortion (THD)

A Hidden Disruptor of Power Quality

Understanding Voltage Total Harmonic Distortion (THD)

Voltage Total Harmonic Distortion - Fault detected by InsiteAI Voltage Total Harmonic Distortion (THD) is a power quality issue that arises when harmonic voltages distort the normal sinusoidal waveform of an electrical system. High voltage THD can lead to erratic equipment behavior, reduced efficiency, and premature failure of electrical components.

At Volta Insite, our InsiteAI technology provides real-time monitoring of voltage THD, allowing facility managers to detect and mitigate harmonic issues before they result in costly downtime.

Why High Voltage THD is a Problem

Excessive voltage THD can create significant operational challenges, including:

Malfunctioning Sensitive Equipment

Harmonics distort voltage waveforms, causing erratic operation of VFDs, UPS systems, and other critical devices.

Increased Heating in Transformers & Motors

Distorted voltage leads to higher eddy current losses, increasing heat buildup and reducing lifespan.

Unstable Power Delivery

Voltage THD can cause fluctuations in supply voltage, leading to inefficiencies in power distribution.

Compliance Issues with Power Quality Standards

Many industries must adhere to IEEE 519 or similar standards for THD levels. Excessive THD can result in regulatory non-compliance.

How InsiteAI Detects and Prevents Voltage THD Issues

Volta Insite’s predictive maintenance platform continuously analyzes electrical waveforms to detect high voltage THD levels. Our AI-driven system offers:

Early Warning Alerts

Instant notifications when THD exceeds safe operating thresholds.

Identification of Harmonic Sources

Pinpoints non-linear loads, such as VFDs, LED lighting, or industrial machines, that contribute to harmonic distortion.

Data-Driven Corrective Actions

Helps facilities implement harmonic filters, isolation transformers, or other mitigation strategies to stabilize power quality.

Preventative Actions with Volta Insite

By integrating InsiteAI, businesses can:

  • Maintain optimal power quality and prevent voltage instability.

  • Protect sensitive equipment from erratic operation and failures.

  • Reduce excess heating in transformers and motors, extending their lifespan.

  • Ensure compliance with power quality regulations and industry standards.

Safeguard Your Power Systems with Advanced THD Monitoring

High voltage THD is an often-overlooked power quality issue that can disrupt operations and damage equipment. With Volta Insite, you can detect and address harmonic problems before they escalate. Contact us today to learn how our predictive maintenance solutions can enhance power reliability in your facility.