please explain working of revers power relay

4 Answers   CESC, DCM,

---

can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value

0 Answers  

---

What is process of anneling transformer core

0 Answers  

---

Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?

1 Answers  

---

please send me previous year questions of jspl through which i could prepare myself for the test.

0 Answers  

---

In the diesel generator if there is an AVR (auto voltage regulator) gone faulty, in this condition is there any way to generate the voltage from the alternator? I need a brief explanation can you please help somebody

1 Answers   Vodafone,

---

what are the advantage and dis-advantage of 3 phase 4 wire energy meter?

0 Answers  

---

what is difference between tension tower and suspension tower?

8 Answers  

---

dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

---

i have one ground earth for my shop but now he showing 11v how ever my machine engineer said that he require less than 3v how can we reduce it, i have put 8 bucket salty water in it

1 Answers  

---

what is the diff between mcb and vcb

3 Answers  

---

importance of reactive power management

0 Answers  

---