Forte's active power quality range is 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. Both span the same three technology tiers, which differ in performance, size and cost.
Both families respond to load changes in milliseconds and do not over-compensate or resonate the way a capacitor bank can. A GRIDVAR module also suppresses harmonics within its residual capacity, and a GRIDSINE module supplies reactive power the same way. Each is built for its primary function, and the two are ordered as separate items.
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.
Primary function is reactive power compensation. Harmonic suppression comes from residual capacity. Rated in kvar.
Primary function is dedicated harmonic filtering. Reactive support comes from residual capacity. Rated in amperes.
Forte builds the modules into complete switchboard panels: sized to the required capacity, factory tested, documented and ready for site installation. Cabinets are paralleled where one cabinet is not enough.
Complete static var generator panel for reactive power compensation. Sized to the project.
Active harmonic filtering panel built around GRIDSINE modules. THD reduction depends on system conditions.
GRIDVAR SVG module plus GRIDFIX passive stages in one panel.
GRIDSINE AHF module plus GRIDFIX detuned passive stages in one panel.
Response in milliseconds. The GRIDVAR-X SiC tier has a 4 µs instantaneous response, so transients from arc furnaces and large presses are countered before they reach the grid.
The module measures continuously and adjusts its output, so it cannot over-compensate the way a fixed capacitor step can.
GRIDVAR-C (Compact Series) fits into switchboard space a passive panel cannot use. That is the retrofit tier.
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.
We review the measurement, recommend GRIDVAR or GRIDSINE and the tier, and configure the panel.
Tell us about your project and a Forte engineer will respond within 1 business day.