How will I know that how many batteries I should connect to my UPS unit?

3 Answers  

---

Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

21 Answers   College School Exams Tests, HC, HCL, Jaypee, JPMorgan Chase,

---

How to address the servo drive for motor

0 Answers  

---

How phase to phase voltage comes 440V.

0 Answers  

---

we have taken HV test of 2.5 k and Megger test on 11 kv HT cable.here it shows no fault but when we are charging the same cable with 11 kv supply why the VCB 11 kv gets tripped can anybody define the possible cause of fault ?

4 Answers   MAHINDRA,

---

what is used root two in single phase line?

1 Answers   DVC,

---

sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

0 Answers   RRB,

---

Name of the relay of low lub oil presuure in DG sets

0 Answers   Lineage, Sterling,

---

how bucchos relay works in a transformer

8 Answers   Indeco,

---

Explain about c.t?

0 Answers  

---

why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

2 Answers  

---

what is mean by hvdc transmission technology .what is principle of hvdc transmission and technic of hvddc transmission .

1 Answers  

---