UPS Types

UPS Types

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Technical Specifications

Product Introduction

There is 2 type   UPS  system:

Dynamic UPS: This type UPS  is used generally on  large power units.

A synonous motor/alternator ,choke, flywheel  are main components.

When the mains power fails, it  maintains the power on the load as long as the flywheel's energy is not exhausted.

This type UPS are sometimes combined or integrated with a diesel generators

Static UPS: System provide continuous electrical power to load and cataogrized at 3 type

Static UPS systems is categoried as follows according to operation princibles;

OFFLINE / STANDBY

Provide very asic protection;surge protection and battery backup.

Load is normally connected directly to incoming utility power.

When the incoming voltage falls below a predetermined level the UPS turns on its internal DC-AC inverter circuitry, which is powered from an internal storage battery.

The switchover time can be  25ms.It used mostly on personal computer.

THE LINE-INTERACTIVE UPS

This  is the cheapest UPS

It  provide similar in operation to a standby UPS,

This type of UPS is able to tolerate continuous undervoltage brownouts and overvoltage surges without consuming the limited reserve battery power.

It contain autotransformer. So it instead compensates by automatically ing different power taps on the autotransformers.

ONLINE / DOUBLE-CONVERSION:

Uses "double conversion" method.

It’s costs much more than standby or line-interactive UPS, Beacause it has a much greater current AC-to-DC battery-charger/rectifier, and with the rectifier and inverter designed to run continuously with improved cooling systems. It has  based  on  a double-conversion  technology UPS (rectifier directly driving the inverter, even when powered from normal AC current.)