Answer Posted / balki
UPS- EB source is converted to DC power through rectifier(DC
to AC), this connected to battery and to Inverter(DC to AC)
this AC supply can be fed to load in this case even EB power
failure the power will be fed to load from battery to
Inverter to load. So there is no power interruption to load
thats why it called as Uninterrupted Power Supply.
Inverter- EB source is converted to DC power through
rectifier(DC to AC), this connected to battery and to
Inverter(DC to AC). At normal EB power available time the EB
source directly fed to Load, If EB power failure the switch
will be activated and stored power in Battery will be fed to
load(battery to Inverter to load). So there is a power
interruption(less than 20 Sec) to load.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
why we can use 1 to 5V dc
I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.
Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..
why capacitive load is not used in routine life????any reason is there ??????
What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva
what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.
What is the mmf,rgt and ngt please brief completely
what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.
Leakage current,un balance current which relay using for high voltage transmission?
Draw the DOL starter and star delta starter drawing?
What will be result if we connect LT votage to the terminal of HT motor?
what is the difference between skin effect
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
wow to calculate the transformer rating(KVA)