Answer / md. zakir hosen

UPS means Uninterruptable Power Supply. Its function is to
convert AC power into DC and store in a Battery when AC
supply is interrupted (no electricity, under voltage or over
voltage) then UPS act as a power supply by Inverting DC to
AC from the charged Battery.

thanking u
z_hosen@yaoo.com

Answer / ponnamalla venkata satish

ups means uninterpted power supply it is play very
important role in industrial process because the field
intruments should give continous signal to the control
system and if in case power has shut down due to abnormal
condition in plant then also control system need some
process parameters to avoid hazards so ups can give
continous supply to the field instrumens and as per the
requirment in the process

Answer / gopal lal

UPS mans untriptable power supply if power failed or two
phasing U/O voltage of the supply UPS given the power
backup.

Answer / sunil guru

BASIC USE AND RUNNING OF UPS IS WRITTEN ABOVE ....
LET ME GIVE SM DETAIL EXPLANATION

UN-INTERRUPTIBLE POWER SUPPLY(UPS)---- HAS BASIC 6 CIRCUITS FOR ITS COMPLETE WORKING

1> MAINS UNDER AND OVER VOLTAGE CUT-OFF CIRCUIT
2> BATTERY CHARGER CIRCUIT
3> RELAY CHANGE OVER CIRCUIT(FROM MAIN TO BATTERY MODE-IN ABSENCE OF UTILITY)
4> BATTERY DEEP CUT OUT CIRCUIT (AT LOW BATTERY THIS CKT WILL CUT OFF BATTERY FROM CKT)
5> INVERTER CONTROL CIRCUT (CONVERTS FROM DC TO AC)
6> POWER OUTPUT STAGE (WITH THE HELP OF TIMER(555),TRANSISTOR AS A SWITCH AND USING MOSFET OR IGBT WITH APPROPRIATE DRIVER TO SWING DIRECT CURRENT TO ALTERNATING AT 180 DEGREE PHASE DIFFERENCE AND PRODUCING 50 HZ FREQ WE CAN DELIVER THE 220 V AC POWER

FOR ANY DISAGREEMENT OR MORE IMFO CONTACT ME ON PARMAR20072008@YAHOO.COM

Answer / mk

it is a uninterpted power supply it will be use when
normal supply are fail. it consist of three part which is
rectifire battary & invertsr in normal condition normal
supply given to this device battary chanrged from this
supply & when normal suplty is gone then load oprated in
battary supply

Answer / venkatesh sk

ups meains un innterrpited power supply function
convertor&invertor convertor means achigh voltagetodc
low voltage battery 12v & invertor high voltageto battery
used emergency back storge power

Answer / chethan

ups means uninnterrepted power supply , to main tain the
constant volage & to avaide shutdowning the system.

difference bteween neutral grounding resistor and neutral grounding transformer??

1 Answers  

What is the full form of CNC in electrical mechines.......?

1 Answers   Alstom,

why we ht line cable size small rather than lt cable.

4 Answers   Aster Teleservices,

I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase), before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

whye the current increases in the motor when the load on the motor increases

3 Answers  

-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

0 Answers  

how to produsing geretor power

0 Answers  

What is the difference between AVR and Servo Stabliser

3 Answers   Wipro,

( Re: WHAT SHOULD BE THE RATING OF MCCB FOR 415V,3Ph,50KVAR CAPACITOR BANK Answer # 1 The capacitor current would be kvar x 1000 / (415 x sqrt3). This would be 70a approx. The MCCB selected should have *atleast 1.4 times this current i.e. 1.4 x 70= 98. So you should choose at least 100 A mccb.) regarding to this answer,i would like to know why the current have to times 1.4 to get the right amphere for the mccb.hows the formula to get the 1.4??tq

2 Answers  

if there is a voltage difference between neutral and earth when we operate any instrument for fraction of time then where is problem?

1 Answers  

If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 Answers  

what happen to the voltage and current in all phases when an earth fault occur in a phase in three phase three wire system(delta connected)...

1 Answers