MicroBheem measures your load every 0.1 milliseconds and injects an exact counter-current — cancelling 99% of harmonics and correcting power factor within one cycle. Modular AHF (30–200A) and SVG (25–150kVAR), built on the proven ASTRA architecture.
Running on site
Non-linear loads — VFDs, UPS, servo drives, rectifiers — pull distorted current that pollutes your entire installation. MicroBheem cancels it at the source, in real time.
Grid-side current transformers feed every unit. The closed-loop DSP decomposes the waveform into harmonic orders — up to the 50th on AHF+ — with a 0.1 ms reactive time.
The 3-level IGBT bridge synthesises a mirror-image current — equal magnitude, opposite phase — for every selected harmonic and the reactive component of the load.
Injected current cancels distortion within one power cycle. THD collapses to near-zero, power factor approaches unity, and penalty charges disappear from your bill.
Every MicroBheem shares the same rack module (590 × 685 × 335 mm), the same 3-level IGBT core, and the same Modbus RTU brain. Choose by what your facility needs cancelled.
The all-rounder — harmonics to the 25th order, power factor correction, and load balancing in one module.
For severe distortion — twice the harmonic reach, full capacity dedicated to filtering, real-time adaptive control.
Stepless reactive power — inductive and capacitive — corrected within one cycle. Retires your capacitor banks.
Reactive power correction plus basic harmonic filtering to the 13th order — the broadest coverage in a single rack unit.
Electrical, installation, communication, and certification data — direct from InPhase datasheets.
| Description | μBheem — AHF |
|---|---|
| Electrical specification | |
| Ratings | 30A, 75A, 100A, 150A, 210A |
| Rated voltage | 415V, +10% / −15% |
| Frequency | 50Hz / 60Hz, ±5% |
| Connection type | 4 wire |
| Topology | 3-Level IGBT |
| Efficiency | ≥ 98% |
| Control basis | Closed-loop operation |
| Harmonic range | Up to 25th order |
| Selectable harmonics | 10 selectable |
| Harmonic attenuation | 99% elimination |
| Reactive time | 0.1 ms |
| Response time | 1 power cycle |
| Operating modes | Harmonics (H) · PF (Q) · H+Q · Fundamental current balancing |
| Harmonics mode (H) | 100% of rated capacity |
| PF mode (Q) | 100% of rated capacity |
| H+Q mode | Up to 50% harmonics · up to 50% reactive |
| Fundamental current balancing | 30% of rated capacity |
| Neutral current compensation | 100% of rated for ≤150A |
| Reactive power range | Both inductive and capacitive |
| CT requirement | 3-phase CTs, 1A or 5A input, Class-1 or better |
| CT position | Grid / source side |
| Parallel expandability | Up to 32 units · any size combination |
| Parallel operation | Master/Slave · all units receive CT feedback |
| Parallel sequence | Load share — all units at same output % |
| Hybrid mode (capacitor bank switching) | Yes |
| Installation characteristics | |
| Installation location | Indoor |
| Construction | Modular · rack module · floor-standing cabinet |
| Enclosure protection | IP-20 (module) · customisable for cabinet |
| Cable entry | Top / bottom |
| Operating altitude | <1000 m |
| Relative humidity | 0–95% non-condensing |
| Noise level | ≤70 dB(A) @ 1 m |
| Operating temperature | 0°C to 50°C |
| Cooling | Forced air |
| Colour | RAL 7035 |
| Module dimensions (W×D×H) | 590 × 685 × 335 mm |
| Module weight | 87 kg / 95 kg |
| Communication | |
| Protocol | Modbus RTU |
| HMI | 7-inch colour touch screen (cabinet-mounted) |
| SCADA | RS-485 port |
| Display parameters | All power parameters, panel parameters & fault log |
| Special features | |
| DC capacitors | Film type |
| Input filter | LCL filter (ripple-free) |
| IGBT max junction temp. | 175°C |
| Standards & certifications | |
| Design reference | EN/IEC 62477-1, IEC 61439-1 |
| EMC compliance | EN/IEC 61000-6-2, EN/IEC 61000-4 |
| Product certification | CE · IAC · DSIR-SIRO |
| Description | μBheem — AHF+ |
|---|---|
| Electrical specification | |
| Ratings | 30A, 75A, 100A, 150A, 210A |
| Rated voltage | 415V, +10% / −15% |
| Frequency | 50Hz / 60Hz, ±5% |
| Topology | 3-Level IGBT |
| Efficiency | ≥ 98% |
| Harmonic range | Up to 50th order |
| Selectable harmonics | 20 selectable |
| Harmonic attenuation | 99% elimination |
| Reactive time | 0.1 ms |
| Response time | 1 power cycle |
| Operating modes | Harmonics compensation only (H) |
| Harmonics mode (H) | 100% of rated capacity |
| PF mode (Q) | — (not available in AHF+) |
| Neutral current compensation | 100% of rated for ≤150A |
| Parallel expandability | Up to 32 units · any size combination |
| Hybrid operation mode | No |
| Installation & physical | |
| Construction | Modular · rack module design |
| Enclosure protection | IP-20 (module) |
| Operating temperature | 0°C to 50°C |
| Module dimensions | 590 × 685 × 335 mm |
| Module weight | 87 kg / 95 kg |
| Communication & certifications | |
| Protocol | Modbus RTU |
| HMI | 7-inch colour touch screen |
| SCADA | RS-485 port |
| DC capacitors | Film type |
| Certification | CE · IAC · DSIR-SIRO |
| Description | μBheem — SVG |
|---|---|
| Electrical specification | |
| Ratings | 25kVAR, 50kVAR, 70kVAR, 100kVAR, 150kVAR |
| Rated voltage | 415V, +10% / −15% |
| Frequency | 50Hz / 60Hz, ±5% |
| Connection type | 4 wire |
| Topology | 3-Level IGBT |
| Efficiency | ≥ 98% |
| Control basis | Closed-loop operation |
| Harmonic range | — (PF compensation only) |
| Reactive time | 0.1 ms |
| Response time | 1 power cycle |
| Operating modes | PF compensation (Q) · Fundamental current balancing |
| PF mode (Q) | 100% of rated capacity |
| Fundamental current balancing | 30% of rated capacity |
| Reactive power range | Both inductive and capacitive |
| CT requirement | 3-phase CTs, 1A or 5A input, Class-1 or better |
| Parallel expandability | Up to 32 units · any size combination |
| Hybrid mode (capacitor bank) | Yes |
| Installation characteristics | |
| Construction | Modular · rack module design |
| Enclosure protection | IP-20 (module) |
| Operating temperature | 0°C to 50°C |
| Module dimensions | 590 × 685 × 335 mm |
| Module weight | 87 kg / 95 kg |
| Communication & certifications | |
| Protocol | Modbus RTU |
| HMI | 7-inch colour touch screen |
| SCADA | RS-485 port |
| DC capacitors | Film type |
| Certification | CE · IAC · DSIR-SIRO |
| Description | μBheem — SVG+ |
|---|---|
| Electrical specification | |
| Ratings | 25kVAR, 50kVAR, 70kVAR, 100kVAR, 150kVAR |
| Topology | 3-Level IGBT |
| Efficiency | ≥ 98% |
| Harmonic range | Up to 13th order |
| Selectable harmonics | 4 selectable |
| Harmonic attenuation | 30% elimination |
| Response time | 1 power cycle |
| Operating modes | PF (Q) · H+Q · Fundamental current balancing |
| PF mode (Q) | 100% of rated capacity |
| H+Q mode | Up to 30% harmonics · up to 70% reactive |
| Fundamental current balancing | 30% of rated capacity |
| Reactive power range | Both inductive and capacitive |
| Parallel expandability | Up to 32 units · any size combination |
| Hybrid operation mode | Yes |
| Installation & physical | |
| Construction | Modular · rack module design |
| Operating temperature | 0°C to 50°C |
| Module dimensions | 590 × 685 × 335 mm |
| Module weight | 87 kg / 95 kg |
| Communication & certifications | |
| Protocol | Modbus RTU |
| HMI | 7-inch colour touch screen |
| SCADA | RS-485 port |
| Certification | CE · IAC · DSIR-SIRO |
Any size combination, Master/Slave load sharing, every unit on the same CT feedback. Add capacity when your facility grows — no new infrastructure, no downtime.
Master/Slave · equal load share · hot-swap rack modules
3-level NPC topology with LCL input filter for ripple-free output and film-type DC capacitors. IGBT junction rated to 175°C for extended life.
≥98% efficiency0.1 ms reactive time, full correction within one power cycle. Keeps pace with VFDs, servo drives, welders, and arc furnaces.
0.1 ms reactiveModbus RTU over RS-485 plugs into any SCADA, BMS, or energy management system. The 7-inch colour HMI shows live parameters and fault logs.
Modbus RTUOver-current, over-temperature, DC-link overvoltage, and short-circuit protection at every layer. Forced-air cooled, ≤70 dB(A) at 1 m.
Multi-layerCompact 590 × 685 × 335 mm modules slide into floor-standing cabinets. Service one unit while the rest keep your plant compensated.
IP-20 moduleBuilt on the proven ASTRA architecture — a platform with a committed long-term parts supply, designed and manufactured in India.
ASTRA platformFrom single rack modules to fully populated cabinets — every MicroBheem is designed, built, and tested in India.
Open-door cabinet
Stacked modulesAHF module front
Module — angled
Cabinet profileConnector detailSVG moduleFrom automotive plants to data centres — wherever drives, rectifiers, and switching loads pollute the supply, MicroBheem keeps it clean.
Mitigates VFD and servo harmonics, stabilises motors. Automotive plants, steel processing, textiles, food processing.
Clean, stable power for IT infrastructure. Removes the harmonic pollution that degrades UPS and server reliability.
Optimises HVAC, lifts, and lighting in commercial buildings, hotels, hospitals, and metro stations.
Chemical, pharmaceutical, paper, water treatment, plastics, and electronics manufacturing facilities.
Steel plants, cement, metal processing, paper & pulp — where power disruption is not an option.
Clean power for imaging, life-support, and lab systems. EN/IEC 61000 compliant for sensitive environments.
Tell us about your facility's power quality challenges. We'll recommend the right MicroBheem AHF or SVG configuration and send a detailed technical proposal.
