Off line ups system - power supplies , Electrical Engineering

Assignment Help:

Off line UPS System

Again the two  switches  are used in this  type of ups  as online  ups. The difference  is that  here  the main  static  switch  remains normally  ON and UPS  static  switch  remains  normally OFF.

Here the load  is directly connected to the  main supply  through  main static  switch. Under the condition of power  failure, main static switch   operates to disconnect the  mains from  the load and then ups  static  switch  becomes ON to  connect the load  batter by bank through  circuit. Battery bank  suppliers  the power  to the load.


Related Discussions:- Off line ups system - power supplies

Evaluate the damping ratio for the gain, A feedback control system with the...

A feedback control system with the configuration of Figure has the following parameters: K p = 0.5 V/rad, K a = 100 V/V, K m = 2.7 × 10 -4 N·m/V, J = 1.5 × 10 -5 kg·m 2 , and

Electric machines, a shunt motor supplied at 230V rms runs at 900rev/min wh...

a shunt motor supplied at 230V rms runs at 900rev/min when the armature current is 30A.the resistance of the armature circuit is 0.4 ohms.find the armature input

Measure and set frequency by using an oscilloscope, 1. Introduction : ...

1. Introduction : Theory: Frequency is the number of occurrences of a repeating event per unit time. It can also be defined as the number of repetitions (cycles) of a w

Transfer function, how can i do a question concerning a transfer function

how can i do a question concerning a transfer function

Live human detection robot, which simulation software is better for this p...

which simulation software is better for this project, and how can i simulate it?

What are the precautions to be taken, What are the precautions to be taken ...

What are the precautions to be taken before basic work on electrical installations? Ans: Before starting any electrical works on installations disconnect the power supply to

Determine the dielectric constant of air in practically, The dielectric con...

The dielectric constant of air is practically taken as (A) more than unity.                         (B) Unity.  (C) less than unity.                           (D) Zero.

Multimeter probes, different types of probes used in multimeter

different types of probes used in multimeter

Lissajous patterns and their use, Consider the characteristics of patterns ...

Consider the characteristics of patterns that appear on the screen of a CRT, when sinusoidal voltages are simultaneously applied to horizontal and vertical plates. These patterns a

Test schedule - meter testing, Test Schedule - Meter Testing The test ...

Test Schedule - Meter Testing The test schedule as per the Central Electricity Authority Regulations on Installation and Operation of Meters is given below. Table: Test S

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd