what is the purpose of silicon dropper used in battery charger?

0 Answers   KNPC,

---

What is the difference between body earthing and neutral earthing?

2 Answers  

---

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

5 Answers  

---

why generation voltages are 6.6kv or 11kv and why not some one give that stander that generation voltages are 5kv or 12kv?

1 Answers   AES,

---

about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ?

2 Answers   NTPC,

---

what is difference between elr and R eartl realy.

0 Answers  

---

I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 Answers  

---

What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?

0 Answers  

---

if the syncronous machine run at leading pf and as its field curret increased its armature current decreased is machine operate as generator or motor?

1 Answers  

---

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

---

When measuring the Insulation resistance of a motor winding (winding to earth) using a megger meter, Applied voltage(1000V) was automatically reduced to 500V. and the measured insulation resistance values are also very low (in Kohm range) Can anyone give me a reason???

3 Answers  

---

how ELCB drip when earth and phase touch together?

2 Answers  

---