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Active Power Quality

Two active families across three shared technology tiers — GRIDVAR for reactive power compensation (SVG) and GRIDSINE for dedicated harmonic filtering (AHF). Instantaneous response for the most demanding industrial environments.

Division 02 — Active Power Quality

GRIDVAR & GRIDSINE
Active Compensation Families

Forte's active power quality range is built as two families on one hardware platform. GRIDVAR is the SVG family — its primary function is reactive power compensation. GRIDSINE is the AHF family — its primary function is harmonic filtering. Each family spans the same three technology tiers. Each tier addresses different performance, size, and cost requirements.

Unlike passive systems, both families respond in milliseconds to dynamic load changes, without the risk of over-compensation or resonance. A GRIDVAR module also suppresses harmonics to the extent of its residual capacity, and a GRIDSINE module also supplies reactive power the same way — but each is optimised for its own primary function and the two are ordered as separate items.

GRIDVAR = SVG · GRIDSINE = AHF Instantaneous response cosφ = 1.00 achievable THD < 3% (to <2% with SiC) 400V – 690V Up to 1200 kvar / cabinet 3 technology tiers
Compare Models ↓
GRIDVAR Series
Two families

Which One Do You Need?

Both families run on the same hardware platform and share the same three technology tiers. What differs is the primary function — and that is what you select on.

Static Var Generator (SVG)

GRIDVAR

Primary function is reactive power compensation. Harmonic suppression comes from residual capacity. Rated in kvar.

SVGkvar
Standard · Compact · Premium SiC
Active Harmonic Filter (AHF)

GRIDSINE

Primary function is dedicated harmonic filtering. Reactive support comes from residual capacity. Rated in amperes.

AHFA
Standard · Compact · Premium SiC
Complete Panel Solutions

Forte-Fabricated Active Panels

GRIDVAR modules are integrated into complete switchboard panels by Forte's engineering team — custom-built to your required capacity, tested, documented and ready for site installation. Multiple cabinets can be connected in parallel for installations exceeding single-cabinet capacity.

SVG Panel

Complete static var generator panel for reactive power compensation. Capacity tailored to project requirements.

  • GRIDVAR module (G, C or X)
  • Main circuit breaker & fuses
  • Control & monitoring unit
  • Ventilation & thermal management
  • Up to 1200 kvar / cabinet (GRIDVAR-C)
  • Factory tested (FAT)

AHF Panel

Active harmonic filtering panel. GRIDVAR-X provides full AHF functionality with significant THD reduction; performance subject to system conditions.

  • GRIDVAR module (G, C or X)
  • CT & measurement wiring
  • Control & monitoring unit
  • Ventilation & thermal management
  • Up to 1200 kvar / cabinet (GRIDVAR-C)
  • Factory tested (FAT)

Hybrid SVG + Passive Panel

Combined active SVG and passive GRIDFIX compensation for optimal cost-performance.

  • GRIDVAR SVG module
  • GRIDFIX passive stages
  • Shared busbar & control
  • Optimised for arc furnace & rolling mill
  • Factory tested (FAT)

Hybrid AHF + Passive Panel

Combined active AHF and passive detuned filter stages for full power quality correction.

  • GRIDVAR AHF module
  • GRIDFIX passive stages
  • Shared busbar & control
  • Covers both reactive & harmonic needs
  • Factory tested (FAT)
Key Features

Why GRIDVAR Outperforms Passive Systems

For facilities with dynamic loads, variable harmonic content, or strict power quality requirements, active compensation delivers results that passive systems simply cannot match.

Instantaneous Response

GRIDVAR responds in milliseconds — not cycles. The GRIDVAR-X SiC series reacts in just 4 µs instantaneously, eradicating transients from arc furnaces and large presses before they propagate into the grid.

SVG + AHF in One Unit

A single GRIDVAR module simultaneously performs reactive power compensation (SVG) and harmonic filtering (AHF). One cabinet, one installation, one interface.

No Risk of Over-Compensation

Unlike passive capacitor banks, GRIDVAR continuously measures and adjusts output — eliminating the risk of over-compensation that damages equipment and increases penalties.

Compact Footprint

Especially with GRIDVAR-C (Compact Series), active compensation fits into spaces where traditional passive panels cannot. Ideal for retrofits and space-constrained installations.

2nd – 51st Harmonic Cancellation

GRIDVAR-C and GRIDVAR-X filter the full 2nd–51st harmonic spectrum. Each harmonic order can be independently enabled or disabled. GRIDVAR-G covers the 2nd–25th range — sufficient for most industrial applications.

Immediate ROI

By eliminating reactive power penalties and reducing harmonic-related failures — GRIDVAR typically pays back within 12–24 months depending on facility size and tariff structure.

Applications

Where GRIDVAR Delivers Maximum Value

Active compensation excels wherever loads are dynamic, harmonic content is high, or power factor targets are strict.

Iron & Steel

Arc furnaces, rolling mills, crane drives. Highest dynamic load variation requiring instantaneous compensation.

🏗

Crane & Hoist Systems

Rapid load swings from crane acceleration and deceleration. Passive systems cannot track fast enough.

Mining

Large VFD-driven conveyors, crushers, and grinding mills with severe harmonic generation.

💻

Data Centres

UPS systems, server loads. Strict harmonic and power factor requirements for grid compliance.

🏥

Hospitals

MRI, CT, and surgical equipment. Sensitive loads requiring clean, stable power without distortion.

🏢

Commercial Buildings

100–800 kvar SVG panels as a drop-in upgrade from traditional capacitor banks. Any voltage, any sector.

🏭

Cement & Petrochemical

High-power motor drives generating 5th, 7th, 11th harmonic currents that damage capacitors and transformers.

🔋

Renewables & EV

Solar inverters, EV charging stations, and battery systems requiring reactive power support and harmonic control.

Ready to eliminate power quality problems?

Our engineers will assess your facility and recommend the right GRIDVAR tier and panel configuration.

Contact Engineering

Request a Quote

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Forte Teknik A.Ş. · Istanbul, Turkey