Answer / vikramsena_reddy

inverter means it converts dc source in to ac.

ups means unniteraptuble power supply.

inverter is the part of ups. in ups battery will charge
while its getting power. if power failed this battery
discharges dc voltage, this voltage is convrted to ac source
by innverter.

the earth resistance should be 4ohms. if not the power will
chose least resistance path and there may be a chance to
equipment failure.

Answer / abishekmittal

In inverter the switching takes some time whereas in UPS is
online i.e. the switching time is almost zero. So for all
critical applications like computer, we prefer UPS and for
normal usage we go for inverters.

Answer / shalini

Inverter is off line UPS which will be used for emergency
lightning
UPS is a on line change over, which will not interupt the
load.

what is differance bw ELCB and MCB. ?

3 Answers  

---

What are the maximum and minimum ratings of MCB,MCCB,ACB,OCB,VCB and SF6 breakers?

2 Answers   ABB, SK E&C, Sodexo,

---

if 2500 KVA TRANSFORMER CAPACITY.33KV INCOMING HOW ARE AMPEAR PRIMERY SAID

3 Answers   Cipla,

---

Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.

0 Answers   Balavigna,

---

why do we use magnetic contactors ?circuit breakers are not enough?

5 Answers  

---

what is the use of starter in tube light?and what it contains

12 Answers   L&T, RRB,

---

name the famous power plants present in A.P

1 Answers   Power Grid,

---

Why we use Carbon & graphite mixxed brushes in the DC motor?

6 Answers  

---

If auto trip is operated, can you close the breaker.

2 Answers   KSEB, L&T, Siemens,

---

how to set the time in digital timer ?

0 Answers  

---

BSNL TTA EXAM QUESTION

0 Answers   BSNL,

---

What are the causes of eddy current losses?

1 Answers   Schneider,

---