Three-Phase Imbalance Correction Active Power Filter — Load Balancing & Power Quality Solution

• Active phase balancing — dynamically redistributes current to eliminate 3-phase imbalance in real-time
• Neutral current elimination — reduces neutral conductor current by 90%+, preventing overheating and fire risk
• Power factor correction to > 0.99 — reduces electricity penalties and improves transformer utilization
• Simultaneous harmonic filtering — one device handles imbalance, harmonics, and reactive power
• DSP digital control — adapts instantly to changing load distributions across phases
• Modular scalable design — add capacity as loads grow without replacing existing equipment
• Transformer protection — reduces neutral-ground voltage and extends transformer service life

• Commercial Buildings — Corrects imbalance from single-phase lighting, HVAC, and office equipment
• EV Charging Stations — Balances large single-phase EV charger loads across three phases
• Data Centers — Eliminates neutral overload from server PSU harmonics and phase imbalance
• Hospitals — Ensures balanced power distribution for critical medical equipment
• Industrial Plants — Balances single-phase welding machines and production equipment
• Educational Campuses — Corrects imbalance from distributed single-phase loads across buildings

Zhejiang Jingying (JYINS) Electrical Co., Ltd., established in 1993, is a leading manufacturer with over 30 years of expertise in power inverters, solar charge controllers, energy storage systems, and renewable energy solutions. Our 500+ employee factory in Wenzhou, China, serves clients across 50+ countries with ISO9001/CE/SAA/RoHS certified products.

• 30+ years of manufacturing excellence since 1993
• ISO9001, ISO14001, ISO45001, CE, SAA, RoHS, FCC certified
• Dedicated R&D center with 30+ national patents
• OEM/ODM services with flexible MOQ and fast prototyping (7-10 days samples)
• Export to 50+ countries across 6 continents
• Professional pre-sales engineering support and after-sales service

Q: What causes three-phase imbalance?

A: Uneven distribution of single-phase loads (lighting, computers, EV chargers) across three phases causes current imbalance, leading to neutral overload, voltage distortion, and energy losses.

Q: How does the APF correct imbalance?

A: The APF measures current on each phase in real-time and injects compensating currents to redistribute load evenly across all three phases.

Q: Can it work with existing capacitor banks?

A: Yes, the APF can operate in parallel with existing passive compensation equipment, handling the dynamic imbalance while capacitors provide base reactive compensation.

Q: What's the typical energy saving?

A: Users typically see 3-8% reduction in total energy consumption from reduced line losses, plus elimination of power factor penalties from utilities.