The power module is the building block of modular UPS. Each power module typically includes components such as rectifiers, inverters, and DC-DC converters. These modules are hot swappable and can be easily added or replaced without shutting down the entire system.
control module
Control module management and coordination of power module operations. It monitors various parameters such as voltage, current, and temperature, and ensures seamless collaboration of power modules. Control modules typically include microprocessors for intelligent control and communication functions.
Bypass module
The bypass module provides a method of bypassing the UPS system and directly supplying power to connected loads from the public grid during UPS failure or maintenance. Even if the UPS is offline, this ensures continuous power supply.
Battery module
The battery module stores electrical energy and provides it to the load during power outages or when the input power exceeds acceptable parameters. These modules may include maintenance free sealed lead-acid batteries, lithium-ion batteries, or other energy storage technologies.
STS switch
The static switch is a critical component that automatically transfers the load from the normal power path to the bypass path in the event of a UPS failure. This ensures a smooth transition and maintains power continuity.
Shell and rack
These components are installed inside the casing, which can be in the form of a rack or independent cabinet. The shell provides protection, organization, and in some cases helps manage heat dissipation.
Modular expansion slot
UPS systems typically have expansion slots or ports to accommodate additional power modules or accessories for future scalability.
