Is the battery cabinet circuit single-phase

How many cabinets does a ups have?

The UPS is contained in one or two rugged steel cabinets. Only the 15 kVA and 20 kVA models have two cabinets, one containing the power electronics and the other containing the batteries and single phase distribution outlets. The UPS and battery cabinets are configured for tower, stack and rack-mount configurations.

How does the battery charging circuit work?

The battery charging circuit remains active when in bypass or online states. For 15 kVA and 20 kVA models, the charging system automatically adjusts the maximum charger power, up to 3 kW, based on the installed battery capacity and current through each battery string to avoid excessive charging that could result in blotted batteries.

How does a UPS battery management system work?

Charging: Upon restoration of the AC input source, the UPS simultaneously recharges the battery and provides regulated power to the critical load. The intelligent battery management system contains a temperature monitoring circuit and compensation algorithm that regulates the battery charging voltage and current so as to optimize battery life.

What is a single-phase power supply (UPS)?

Scope: This specification describes the operation and functionality of continuous duty, single-phase input and output power (1:1) and split-phase (two models), solid-state, static Uninterruptible Power Supply model, hereafter referred to as UPSs.