| Mains-to-Mains ACP (Open Transition) |
Critical facilities requiring power redundancy from two utility feeds with a brief, permissible interruption. |
Utilizes two incoming main lines, automatic switching logic based on voltage/frequency sensing, robust interlocks, typically uses contactors or motorized circuit breakers. Cost-effective for non-critical loads. |
| Mains-to-Mains ACP (Closed Transition) |
Data centers, hospitals, and continuous process industries where even momentary power interruption is unacceptable. |
Momentary paralleling of sources during transfer to ensure zero interruption. Requires precise synchronization control (e.g., Schneider Sepam, ABB Relion relays). Advanced power quality monitoring. |
| Mains-to-Generator ACP (Standard Auto) |
Industrial plants, commercial buildings, residential complexes relying on diesel generators for backup power. |
Automatically starts generator upon main power failure, transfers load, and shuts down generator upon main power restoration. Integrated generator control unit (Genset Controller) like Deep Sea, ComAp, or IGC. |
| Mains-to-Generator ACP (Synchronized) |
Facilities with multiple generators or requiring parallel operation with mains for load shedding/peak shaving. |
Advanced synchronization module for smooth load transfer and parallel operation. Optimizes fuel consumption and extends generator lifespan. Complex load sharing and power factor control. |
| PLC-Based ACP Systems |
Large industrial complexes, smart factories, or distributed control systems requiring highly flexible and intelligent power management. |
Programmable Logic Controller (e.g., Siemens S7-1200/1500, Rockwell CompactLogix) for custom logic, intricate sequencing, remote monitoring, and integration with SCADA/BMS. Enhanced diagnostics and fault reporting. |
| Contactor-Based ACP |
Smaller to medium loads where fast switching is essential, often for pump houses, small manufacturing units. |
Utilizes heavy-duty contactors for switching. Simple, reliable, and cost-effective. Suitable for loads up to a few hundred Amperes. Integrated overload and short-circuit protection. |
| Motorized Breaker-Based ACP |
High-current applications in substations, large commercial complexes, and heavy industries. |
Employs motorized Air Circuit Breakers (ACBs) or Moulded Case Circuit Breakers (MCCBs) for robust and reliable switching. Handles very high fault currents. Long mechanical and electrical life. |
| Hybrid ACP Solutions |
Facilities with diverse power sources including grid, generators, solar PV, and battery energy storage systems (BESS). |
Intelligent control system to manage multiple power inputs and prioritize sources based on cost, availability, or environmental factors. Maximizes energy efficiency and resilience. |
| Compact ACP for OEM Machines |
Integration into specialized machinery, small data centers, or critical equipment requiring dedicated backup. |
Space-saving design, pre-wired and tested modules for easy integration. Essential fault protection and automatic transfer logic for embedded applications. |
| Remote Monitoring Enabled ACPs |
Unmanned substations, telecom towers, remote pump stations, and facilities needing off-site power status updates. |
Integrated with communication modules (e.g., GSM/GPRS, Ethernet) for real-time status updates, alarms via SMS/email, and remote control capabilities. Enhances operational visibility. |
