Products
ASTRA®
Modular AHF
Modular Compensation System


Steel
Textile
Cement
Railway
Data Center
Chemical
Solutions
50A, 75A, 100A, 150A, 200A
Voltage
350V-480V
Types
3Phase 4Wire
Harmonics
Up to 50th Order
Features & Benefits
3-Level IGBT
Advanced 3-level inverter technology ensures lower switching losses and superior waveform quality.
Extremely Efficient – 98%
High-efficiency design delivers up to 98% performance, reducing energy loss and operating cost.
Comprehensive Load Balancing Capabilities
Actively balances loads across phases for improved stability and optimized system performance.
Flexible Operation Mode
Offers multiple modes of operation for seamless adaptation to diverse electrical conditions.
Smart Integration
Designed for smooth communication and compatibility with modern power management systems.
Real-time adaptive filtering technology
Automatically adjusts filtering parameters in real time to maintain consistent performance under varying loads.
Robust Construction for Harsh Environments
Engineered with industrial-grade materials to ensure durability and reliable operation in tough conditions.
Description
Modular Active Harmonic Filter (AHF) is an advanced, electronics-based system designed to eliminate harmful harmonics from electrical networks. Unlike passive filters, Modular AHF dynamically detects and cancels harmonic currents in real time, improving power quality and protecting sensitive equipment.
Built on InPhase’s , Modular AHF supports expansion up to 32 units, offers real-time harmonic mitigation up to the 50th order, and includes reactive power compensation and load balancing. Whether the load requires 30A, 100A, or 210A, the Modular AHF adapts instantly, ensuring consistent and efficient performance.
It is ideal for industries like steel, automotive, textiles, data centers, and more where non-linear loads generate harmonics and cause equipment inefficiencies or failures.
Modular AHF Applications
Modular AHFare used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.






ASTRA®
Modular SVG
Modular Compensation System


Steel
Textile
Cement
Railway
Automotive
Solutions
50 Kvar , 75 Kvar ,100 Kvar, 150 Kvar
Voltage
350V-480V
Types
3Phase 4Wire
Compensation
Inductive and Capacitive
Features & Benefits
3-Level IGBT
Advanced 3-level inverter technology ensures lower switching losses and superior waveform quality.
Extremely Efficient – 98%
High-efficiency design delivers up to 98% performance, reducing energy loss and operating cost.
Comprehensive Load Balancing Capabilities
Actively balances loads across phases for improved stability and optimized system performance.
Hybrid Operation Mode
Supports seamless integration of multiple correction technologies for maximum flexibility.
Smart Integration
Designed for smooth communication and compatibility with modern power management systems.
Control Basis Closed-Loop Operation
Real-time feedback ensures consistent, precise correction and enhanced reliability.
Automatic Adaptation to Load Variations
System dynamically adjusts to changing load conditions without manual intervention.
Fundamental Current Balancing
Balances fundamental currents to reduce neutral loading and improve overall power quality.
Description
Modular Static VAR Generator (SVG) is an advanced electronic solution for dynamic reactive power compensation. Unlike passive stepped systems, Modular SVG offers seamless real-time correction based on exact load demand.
Built with high-efficiency semiconductor technology, it is ideal for industries like steel, cement, data centers, and renewables. Its modular design allows flexible scaling — whether the need is 25kVAR, 55.5kVAR, or 150kVAR — the system adjusts instantly to provide precise compensation. It also offers harmonic mitigation (SVG+), neutral current balancing, and supports parallel operation of up to 32 units, ensuring compact, reliable performance across a wide range of applications.
Modular SVG Applications
Modular SVG are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.




ASTRA®
Active Harmonic Filter
Best Power Quality Solution



Steel
Textile
Cement
Railway
Solutions
100 Kvar to 20000 Kvar
Voltage
380V to 690V
Types
3Ph3W/3Ph4W
Ratio
Active + Passive
Passive Steps
Contactor/Thyristor



Solutions
30 Amps to 30000 Amps
Voltage
480V to 690V
Types
3Ph3W/3Ph4W
Harmonics
Up to 61st Order
3-Level Topology
Advanced power architecture ensuring smoother waveform and higher efficiency.
Extremely Efficient – 98%
Delivers exceptional energy conversion with minimal power loss.
Low Losses
Optimized design reduces conduction and switching losses significantly.
Applications
Hybrid Compensation
Combines active and passive techniques for superior power quality.
Auto Voltage Stabilization
Automatically maintains stable output voltage under varying loads.
Eliminate Grid Resonance
Prevents harmonic amplification and ensures grid stability.
Dual quad core DSP Processor
Filters unwanted harmonics to maintain clean, distortion-free electrical supply.
Inbuild cloud connectivity
Enables real-time monitoring, control, and data analytics via the cloud.
Features & Benefits
3-Level Topology
Advanced power architecture ensuring higher efficiency.
Extremely Efficient – 98%
Delivers exceptional energy conversion with minimal power loss.
Low Losses
Optimized design reduces conduction and switching losses significantly.
Hybrid Compensation
Combines active and passive techniques for superior power quality.
Auto Voltage Stabilization
Automatically maintains stable output voltage under varying loads.
Eliminate Grid Resonance
Prevents harmonic amplification and ensures grid stability.
Dual quad core DSP Processor
Filters unwanted harmonics to maintain clean, distortion-free electrical supply.
Inbuild cloud connectivity
Enables real-time monitoring, control, and data analytics via the cloud.
Description
The indigenously developed InPhase range of ASTRA harmonic filter is a 3-Level IGBT based Active harmonic filter.
It is a one stop guaranteed solution for a range of PQ problems like harmonics, Reactive power management & unbalance compensation. These robust filters are built to effortlessly endure the extreme climate conditions of the country.
These rugged filters are used in applications ranging from steel, cement, textile, foundry, pharma & other major industries.
ASTRA filter is designed for powerful performance & is adaptable to wide voltage applications up to 690V AC. ASTRA filters is a unique multi-level efficient system with harmonic solution up to 61st order, reactive power compensation close to unity PF & unbalance compensation.
It is built with high level processor with best-in-class user interface enabling remote monitoring for efficient energy management system. The list of benefits of this extraordinary product goes from the eradication of penalties to lessening Energy costs.
Steel
Cement
Textile
Railway
Active Harmonic Filter Applications
Active Harmonic Filters are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.




ASTRA®
Static VAR Generator
Best Reactive Power Compensation



Steel
Textile
Cement
Railway
Automotive
Solutions
50 Kvar to 20000 Kvar
Voltage
480V to 690V
Types
3Ph3W
Compensation
Inductive and Capacitive
Features & Benefits
3-Level Topology
Multi-level inverter architecture ensures higher efficiency, lower switching stress, and superior waveform quality.
Extremely Efficient – 98%
High-efficiency design delivers up to 98% performance, reducing energy loss and operating cost.
Low Losses
Optimized design minimizes heat generation and electrical losses for long-term reliability.
Hybrid Compensation
Combines multiple compensation methods to correct power factor, harmonics, and imbalances simultaneously.
Auto Voltage Stabilization
Automatically maintains steady voltage levels to protect sensitive loads from fluctuations.
Eliminate Grid Resonance
Effectively prevents resonance issues by managing harmonics and reactive power interactions.
Dual Quad-Core DSP Processor
High-speed parallel processing enables ultra-fast control, monitoring, and precision correction.
Inbuilt Cloud Connectivity
Provides real-time remote monitoring, analytics, and control through secure cloud integration.
Description
A static VAR generator is a developed electronics-based reactive power dynamic reactive power compensator. In comparison with passive stepped compensation a Static VAR compensator can provide dynamic precise compensation based on the load demand.
Static VAR generator (SVG) powered by advanced semiconductor technology is a reliable source for compensation for dynamic reactive power requirements in industries like power generation industries, Photovoltaics, railways etc. It can dynamically provide compensation at every KVAR value necessitated by the load, whether it is 33kVAR or 55.5kVAR, etc.
Static VAR Generator Applications
Static VAR Generator are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.





ASTRA®
Smart Hybrid Active Filter
Cost Effective Reactive and Harmonic compensation

Steel
Textile
Cement
Railway
Automotive
Solutions
100 Kvar to 20000 Kvar
Voltage
380V to 690V
Types
Thyristor Switched Module
Ratio
Active + Passive
Passive Steps
Contactor/Thyristor
Features & Benefits
Accurate Compensation
Delivers precise reactive power correction for optimal power factor at all load conditions.
Dual PF Settings
Allows switching between two preset power factor targets for flexible operation.
Cost-Effective Solution
Provides superior performance and reliability while keeping overall system costs low.
Smoother Voltage
Stabilizes voltage levels and reduces fluctuations for healthier electrical equipment.
Less Maintenance
Engineered with durable components to minimize upkeep and service requirements.
Quick Reaction
Responds instantly to load variations to maintain consistent power quality.
Additional Harmonic Control
Enhanced filtering reduces harmonic distortion and improves system efficiency.
Monitor from Mobile
Supports mobile-based monitoring for real-time status, alerts, and control.
Description
Smart Hybrid Active Filter (SHAF) is an advanced combination of Active & Passive technologies. This is the most cost-effective solution for industries which have installed APFC/RTPFC. The SHAF solution with high-speed quad core DSP technology works with passive technology to convert the existing compensation into a better & smarter dynamic stepless compensation.
Installation of SHAF comes with the advantages of the InPhase ASTRA filter providing dynamic response, KVAH billing reduction, PF correction & harmonics mitigation in the most cost-effective manner.
SHAF is an excellently built filter with efficiency of 98%, low maintenance, quick reaction, and high efficiency, which can be operated remotely and provides smoother voltage profiles. SHAF is a great solution to operate with the existing detuned APFC/TSC units to achieve enhanced energy management, mitigate harmonics and maintain a good power quality.
Smart Hybrid Active Filter Applications
Smart Hybrid Active Filter are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.




ASTRA®
RTPFC
Ultrafast reactive power Compensation for Dynamic Applications


Steel
Robotics
Injection Moulding
Automobile
Solutions
100 Kvar to 2000 Kvar
Voltage
380V to 690V
Switching
Thyristor Switched Module
Features & Benefits
Instant Response
Reacts to load changes within milliseconds to maintain stable power quality.
Transient-Free Switching
Switches capacitor banks smoothly without generating electrical transients.
No Harmonic Resonance
Designed to avoid interaction with system harmonics for safe and stable operation.
Precise Power Factor Control
Maintains the power factor at the desired setpoint with high accuracy.
No Harmonic Resonance
Designed to avoid interaction with system harmonics for safe and stable operation.
Extended Capacitor Life
Optimized switching and protection features significantly increase capacitor lifespan.
Easy Installation
Compact, user-friendly design enables quick and hassle-free setup.
Zero Maintenance
Solid-state operation eliminates the need for periodic maintenance.
Description
Real-time power factor control, abbreviated as RTPFC, is an extremely fast reactive power compensation for dynamic applications. This Thyristor Switched Real-Time Power Factor Panel provides instant response with transient free switching. With mere maintenance requirement and supremely easy installation, the product is guaranteed with long life. InPhase developed RTPFCs are designed with DSP based Thyristor switching modules (TSCs) developed & tested for their robust performance ensuring no harmonic resonance. It can be utilized in Rolling Mill, Furnace, Welding, Robotics, Elevators, Injection Molding, Process Industry, Automobile Industry, and for any and every dynamic Load Conditions
RTPFC Applications
RTPFC are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.







ASTRA®
APFC
Power Factor Improvement the Conventional Way








Steel
Textile
Cement
Railway
Rating
100 Kvar to 1550 Kvar
Voltage
380V to 690V
Switching
Contactor Switched
Features & Benefits
Advanced Microprocessor for Power Factor Control
Provides fast, intelligent, and highly accurate power factor correction based on real-time load conditions.
MPP/APP Gas-Filled or Oil-Filled Capacitors
High-quality capacitor technologies ensure superior reliability and performance in demanding environments.
440V / 525V Supported Capacitor Voltages
Designed to operate safely and efficiently across standard industrial voltage ratings.
Detuned to Avoid Resonance
Detuned reactors prevent harmonic resonance and protect the system from harmful distortions.
Extended Long Life with Specially Designed Reactors
Custom-engineered reactors enhance durability and ensure long-term stable operation.
Complete Analysis of Customer System Before Design
A detailed power quality study ensures the panel is optimized for the client's specific electrical needs.
Switchgear Conforming to International & Indian Standards
Components like contactors and MCCBs meet global and national safety and performance certifications.
Compartmentalized / Non-Compartmentalized Design Options
Flexible panel configurations improve safety, accessibility, and customization.
Power Cables Suitable for High Temperature
High-temperature-rated cables ensure reliable operation even under heavy electrical loads.
Rugged Panel Design for Long Life
Built with durable materials and engineering standards to withstand harsh industrial conditions.
Description
APFC, an Automatic Power Factor Control, is conventional & old technology consisting of various steps of capacitors that can be switched ON and OFF based upon load demand. APFCs are used only for Reactive power compensation & reduce apparent power demand.
The Power Factor Controller even offers information regarding the network characteristics just like Active, Voltage, reactive power, power factor for the clients to comprehend.
The system commonly incorporates Power Capacitors, Controller, and relay circuits. The switching system of this is dependable upon the kind of compensation. The advanced microprocessor for power factor control can provide complete analysis of the customer system prior to design recommendation is the amazing feature that will undoubtedly impress you. This product’s best feature is its panel designing is extremely simple for user handling & it is a cost-effective solution.
APFC Applications
APFC are used in industries to eliminate electrical harmonics, improve power quality, and maintain system efficiency. They ensure smooth operation of sensitive equipment and reduce energy losses caused by harmonic distortion.









