--- title: "Voltage Regulation & Power Quality | Entogo" description: "Entogo — Voltage Regulation & Power Quality. Feeder voltage regulation, low-voltage stabilization and reactive-power compensation perform different duties." url: https://entogo.ca/products/families/voltage-regulation/ lang: en type: website image: https://entogo.ca/og-cover.jpg alternates: en: https://entogo.ca/products/families/voltage-regulation/ fr-CA: https://entogo.ca/fr/products/families/voltage-regulation/ fr: https://entogo.ca/fr/products/families/voltage-regulation/ es: https://entogo.ca/es/products/families/voltage-regulation/ ar: https://entogo.ca/ar/products/families/voltage-regulation/ pl: https://entogo.ca/pl/products/families/voltage-regulation/ ro: https://entogo.ca/ro/products/families/voltage-regulation/ ru-KZ: https://entogo.ca/ru/products/families/voltage-regulation/ ru-UZ: https://entogo.ca/ru/products/families/voltage-regulation/ ru-KG: https://entogo.ca/ru/products/families/voltage-regulation/ ru-TJ: https://entogo.ca/ru/products/families/voltage-regulation/ ru-TM: https://entogo.ca/ru/products/families/voltage-regulation/ ru-AZ: https://entogo.ca/ru/products/families/voltage-regulation/ ru-AM: https://entogo.ca/ru/products/families/voltage-regulation/ ru-GE: https://entogo.ca/ru/products/families/voltage-regulation/ site: https://entogo.ca/ llms: https://entogo.ca/llms.txt --- Products › Voltage Regulation & Power Quality Entogo # Voltage Regulation & Power Quality Feeder voltage regulation, low-voltage stabilization and reactive-power compensation perform different duties. A feeder step voltage regulator controls network voltage; an industrial stabilizer controls the supply to connected loads; a capacitor bank compensates reactive power. Describe the measured problem first, then provide voltage variation, load profile and the required control response. [![Step Voltage Regulator (SVR)](https://entogo.ca/_astro/step-voltage-regulator.Ci6fH5B-_6gguI.webp) Voltage Regulation & Power Quality ### Step Voltage Regulator (SVR) Entogo supplies step voltage regulators for feeder voltage control. Reference configurations span 2.5–19.92 kV; select line current, insulation, connection and controller together rather than treating regulator kVA as total feeder capacity. View](https://entogo.ca/products/step-voltage-regulator/)[![Automatic Voltage Stabilizer (AVR)](https://entogo.ca/_astro/automatic-voltage-stabilizer.Y3f17WR8_1cqfMM.webp) Voltage Regulation & Power Quality ### Automatic Voltage Stabilizer (AVR) Entogo supplies industrial automatic voltage stabilizers for loads exposed to supply variation. Specify the full input-voltage range, output tolerance, load current, starting duty and bypass arrangement before selecting the kVA. View](https://entogo.ca/products/automatic-voltage-stabilizer/)[![Entogo automatic power-factor-correction capacitor bank](https://entogo.ca/_astro/Entogo-Low-Voltage-Reactive-Power-Compensation-Cabinet.2RVOaNzv_ZsiHQU.webp) Voltage Regulation & Power Quality ### Automatic Power-Factor-Correction Capacitor Bank An automatic power-factor-correction (PFC) capacitor bank for 480 V, 60 Hz systems — stepped, controller-switched kVAR with detuned harmonic-filter reactors to raise power factor, cut demand charges and free up transformer capacity. Designed to UL 810, IEEE 18 and NEMA CP-1; UL/CSA certifiable. View](https://entogo.ca/products/power-factor-correction-capacitor-bank/) ## Design references [![Power transformer at an electrical substation with an on-load tap changer for voltage regulation](https://entogo.ca/_astro/transformer-voltage-regulation-tap-changers.LSKEj7V-_xljGw.webp) Power & Distribution ### De-energized taps or a load tap changer? Specifying transformer voltage regulation Transformer regulation is %R cos θ + %X sin θ plus a small quadratic term. A 1500 kVA, 5.75 %Z unit at 0.85 PF drops 3.85 %, so a 13.3 to 14.0 kV primary needs the 13 455 V tap to hold 456 to 504 V. The full ANSI C84.1 Range A primary swing needs an OLTC or a step regulator. View](https://entogo.ca/insights/transformer-voltage-regulation-tap-changers/)[![Industrial plant electrical room where power-factor-correction capacitor banks and switchgear manage reactive power](https://entogo.ca/_astro/power-factor-correction-utility-penalty.Cni84cCa_Z1Wm0EM.webp) Power & Distribution ### Power factor correction: how to size a capacitor bank and clear a utility penalty Power-factor capacitor sizing uses Qc = kW x (tan phi1 - tan phi2). An 800 kW load at 0.78 power factor needs 379 kVAR to reach 0.95, so a 400 kVAR bank is specified. BC Hydro's graduated surcharge reaches 16 percent below 80, Hydro One bills on 90 per cent of kVA, and PG&E adjusts 0.06 percent per point off 85. View](https://entogo.ca/insights/power-factor-correction-utility-penalty/)[![Low-voltage power distribution and switchgear serving nonlinear loads governed by IEEE 519 harmonic limits](https://entogo.ca/_astro/harmonic-distortion-ieee-519-limits.BUEcbegf_18OX90.webp) Power Quality ### Harmonic distortion: what IEEE 519 requires and how to meet it Harmonic distortion from VFDs, EV chargers, and data-center power supplies can breach IEEE 519 limits and quietly overheat neutrals, transformers, and switchgear. This guide explains the 519-2022 voltage and current limits and how to specify mitigation before it becomes a field problem. View](https://entogo.ca/insights/harmonic-distortion-ieee-519-limits/) For Canadian and US projects, include the utility specification, service frequency and required approvals. State whether the order is for the transformer alone or an integrated equipment package. ## Discuss your equipment requirements [Request a project quote](https://entogo.ca/contact/) ## Browse equipment families Compare equipment by function and installation. Product pages identify the available scope and the information needed for a quotation. ## Structured data (JSON-LD) ```json {"@context":"https://schema.org","@type":"CollectionPage","@id":"https://entogo.ca/products/families/voltage-regulation/#collection","url":"https://entogo.ca/products/families/voltage-regulation/","name":"Voltage Regulation & Power Quality","description":"Entogo — Voltage Regulation & Power Quality. 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