Description
AAVAD INSTRUMENT PVT.LTD. Auto Change Over Panels provide automatic power transfer between mains and generator, ensuring uninterrupted electricity during power failures.
An Auto Change Over Panel, also known as an ATS (Automatic Transfer Switch) Panel, is a critical electrical system designed to ensure continuous power supply during mains power failure. The panel automatically transfers the electrical load from the utility supply to a standby generator and restores it back to mains once power is available.
AAVAD Instrument Pvt. Ltd. manufactures robust and intelligent Auto Change Over Panels that provide seamless power transfer, enhanced safety, and reliable performance for residential, commercial, and industrial applications.
The ATS panel continuously monitors the incoming AC mains supply. When a power failure or voltage abnormality is detected:
The ATS commands the generator set to start automatically
Once the generator stabilizes, the load is transferred to standby power
During mains restoration, the ATS switches the load back to utility power
The generator is then stopped after a programmed cooling period
This fully automatic operation ensures zero or minimal downtime, making ATS panels essential for hospitals, data centers, fire safety systems, and critical infrastructure.
AAVAD also manufactures Dual Mains Automatic Change Over Panels designed to meet fire safety and building regulations. These panels are widely used in buildings with duplicate power supplies and automatically switch between sources during fire or mains failure to ensure continuous power to firefighting lifts and safety systems.
Proven expertise in AMF and ATS panel manufacturing
Compliance with Indian electrical standards
Reliable automatic power transfer
Long service life with minimal maintenance
Custom-engineered solutions for small and large installations
Trusted manufacturer of auto change over panels in India
AAVAD INSTRUMENT PVT.LTD. Auto Change Over Panels provide automatic power transfer between mains and generator, ensuring uninterrupted electricity during power failures.
An ATS Controller governs the complete transfer operation using relays and intelligent software logic. It manages:
Generator start–stop sequence
Load transfer logic
Voltage and frequency monitoring
Fault detection and alarms
AAVAD ATS panels are built using high-quality circuit breakers or motorized changeover switches, ensuring durability and precise control during power interruptions.
Auto / Manual selector switch
Automatic delay during generator start
Generator stop delay of 3 minutes for cooling
Audible hooter and alarm annunciation for fail-to-start
Fault checklist display for quick troubleshooting
4-pole switch control for safe generator operation
Manual start and stop control
Emergency stop switch for enhanced safety
Designed as Automatic Mains Failure (AMF) panels
Automatic changeover from mains to standby generator
Fabricated using premium-quality raw materials
Corrosion-resistant, dustproof, and vermin-proof construction
Suitable for indoor and outdoor installations
Load ratings available from 32A to 3200A, including ACB-based systems for large installations
AAVAD Auto Change Over Panels are widely used in:
Hospitals and healthcare facilities
Residential apartments and commercial complexes
Textile, sugar, and chemical industries
Foundries and manufacturing plants
Firefighting systems and safety infrastructure
Critical utility and backup power systems