AHF & SVG Power Quality Solutions
Power quality made simple for Office Buildings, Schools & Crypto Mining Farms — reduce harmonics, correct power factor, stabilize voltage, and unlock capacity.
Why Power Quality Matters
Harmonics, low power factor (PF), voltage fluctuations, and three‑phase unbalance increase losses, cause overheating, trigger nuisance trips, and shorten equipment life. Fixing these issues quickly reduces penalties, improves energy efficiency, and frees 10–30% extra capacity on existing infrastructure.- Lower energy and demand charges; fewer penalties
- Cooler transformers/cables; fewer trips and downtime
- Better performance for VFDs, UPS, LEDs, and sensitive loads
- Supports compliance with IEEE 519 / GB/T 14549 objectives
Our Solutions at a Glance
AHF — Active Harmonic Filter
Targeted harmonic mitigation for non‑linear loads (e.g., VFDs, SMPS, LEDs). Typical THDi reduction to ≤5–8% with proper sizing.- Best for: Harmonics‑dominant sites
- Response: ms‑level dynamic injection
- Efficiency: typically ≥97%
APF — Active Power Filter
All‑in‑one: harmonics + reactive power + three‑phase unbalance. PF up to 0.99, neutral current reduction, voltage stability support.- Best for: Mixed issues with PF/unbalance
- Response: sub‑cycle control
- Scalable: modular parallel design
SVG — Static VAR Generator
Fast, precise reactive power compensation (lag/lead) to 0.99 PF. Helps mitigate flicker and stabilizes feeders.- Best for: PF penalties and voltage stability
- Response: real‑time, ms‑level
- Integration: Modbus RTU/TCP
| Feature / Need | AHF | SVG |
|---|---|---|
| Harmonic mitigation | Excellent | Limited |
| Power factor correction | Excellent | Excellent |
| Three‑phase unbalance | Excellent | Limited |
| Typical use case | Harmonics only | PF only / flicker |
Office Buildings — Power Quality Tenants Feel, Finance Teams Love
Cut harmonics, eliminate PF penalties, and free capacity for tenant growth—without disrupting operations.
Pain Points
- Nuisance trips and elevator/HVAC disturbances from harmonics/unbalance
- PF penalties and rising demand charges
- LED/VFD stress overheating transformers and busbars
- Capacity bottlenecks blocking tenant expansion and green goals
Our Solution
- AHF: Targeted harmonic mitigation for VFDs, LEDs, UPS; THDi to ≤5–8% (site‑dependent)
- SVG: Fast PF correction (lag/lead) for lower bills and utility compliance
Benefits
- Fewer trips; cooler transformers; quieter operation
- Lower losses and penalties; unlock 10–30% headroom
- Stable elevators, HVAC, and tenant critical equipment
Quick Sizing Example
Bus 2500 A, THDi 28% → target 8%, safety factor 1.3 Compensation current ≈ 2500 × (0.28 − 0.08) × 1.3 ≈ 650 A Recommendation: 2 × 300 A + 1 × 100 A (redundant and scalable)Request a QuoteSchools & Campuses — Keep Classes On, Keep Costs Down
Stabilize labs, data rooms, and HVAC with clean power—meet sustainability goals without disrupting semesters.
Pain Points
- Sensitive lab gear and IT rooms affected by harmonics and voltage dips
- PF penalties and tight public budgets
- Stadium lighting and workshops causing flicker and THD spikes
- Limited maintenance windows; strict noise expectations
Our Solution
- AHF: Reduce harmonics from HVAC VFDs, LED lighting, lab PSUs; THDi to ≤5–8%
- SVG: PF to 0.99 (lag/lead), supports flicker mitigation for lighting/events
Benefits
- Fewer disturbances in classrooms, labs, and IT spaces
- Lower utility costs and measurable CO₂ reduction
- More usable transformer capacity for expansion
Quick Sizing Example
Feeder 1200 A, THDi 30% → target 8%, safety factor 1.25 Compensation current ≈ 1200 × (0.30 − 0.08) × 1.25 ≈ 330 A Recommendation: 2 × 200 A modules for growth and redundancyRequest a QuoteCrypto Mining Farms — More Uptime, Lower Losses, Better Compliance
Mitigate harmonics from miner PSUs, correct PF in real time, and cool down your transformers—boost ROI and stay grid‑friendly.
Pain Points
- High THDi from SMPS overheating cables/transformers
- PF penalties and capacity caps from utilities
- Voltage dips and trips during ramp‑up/batch restarts
- Harsh sites with dust, heat; containerized layouts
Our Solution
- AHF: Target miner harmonic spectrum; THDi to ≤5–8% (with proper sizing)
- SVG: PF to 0.99 (lag/lead); stabilizes voltage and reduces flicker on long feeders
Benefits
- Fewer trips; lower I²R losses; cooler transformer temps
- Free 10–30% capacity headroom to add rigs without upgrades
- Utility compliance support (IEEE 519 objectives at PCC)
Quick Sizing Example
Main LV bus 4000 A, THDi 35% → target 8%, safety factor 1.3 Compensation current ≈ 4000 × (0.35 − 0.08) × 1.3 ≈ 1404 A Recommendation: 5 × 300 A (1500 A total) for margin and N+1 flexibilityRequest a QuoteTypical Specs & Integration
- Voltages: 380/400/415/480/690 V; 50/60 Hz; 3‑phase 3/4‑wire
- Capacity: 50–1200 A per cabinet; parallel to multi‑kA
- Performance: THDi ≤5–8% (site dependent); PF up to 0.99 (lag/lead)
- Response: sub‑cycle control, ms‑level correction; efficiency typically ≥97%
- Communications: Modbus RTU/TCP; dry contacts; cloud‑ready options
- Enclosures: Indoor; outdoor options on request; typical noise 55–65 dB
- Standards: Designed to help achieve IEEE 519 / GB/T 14549 objectives
Case‑Style Examples
VFD Workshop
THDi cut from 32% to 7%; PF lifted to 0.99; transformer temperature reduced; fewer nuisance trips.Commercial Tower
PF penalties eliminated; 15% headroom unlocked for tenant expansion; quieter HVAC operation.EV Charging Plaza
Voltage dip and flicker improved during peak demand; fewer breaker trips; higher station uptime.FAQ
Will this help me meet IEEE 519 at the PCC?
We size and configure the solution to your specified limit (e.g., THDi ≤5–8% at the PCC), subject to proper installation and verified site measurements.AHF vs SVG — which is most cost‑effective?
If harmonics dominate, choose AHF. If you also need PF and unbalance correction, choose APF. If PF is the main issue, SVG typically offers the best value.Can I start small and expand?
Yes. Our modular systems parallel seamlessly, so you can start with a smaller capacity and scale with load growth.How long does installation take?
Many projects complete within hours to a few days depending on switchgear, cable runs, and commissioning scope.What maintenance is required?
Minimal routine checks (filters, airflow, connections). Remote diagnostics and predictive alerts are available.Noise considerations for offices/schools?
Typical cabinet noise is 55–65 dB depending on rating and cooling; placement and ventilation design help meet acoustic targets.Request Pricing & Free Assessment
Share your single‑line diagram (if available), key loads, measured THDi/PF, and target KPIs. We’ll respond with a tailored AHF/SVG proposal, performance commitments, lead time, and a competitive quotation.Tip: Include voltage & wiring (e.g., 400 V, 3P4W), transformer/feeder current (A), measured THDi/PF at PCC, target limits (e.g., IEEE 519 @ PCC), site city/country, preferred installation window.
