Answer / gobi

grid stations means one or two power stations are connected together to reduce the maximum electricity demand. so its means used for load sharing... and avoid the power shut down.

What is meaning of star delta connection / delta star connection and which one is best and what is the advantage?

0 Answers  

---

what is the meaning of 0.5ohm Resistance

0 Answers   Vardhman,

---

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

1 Answers  

---

Is there any question in the name of Static Switch in UPS??

0 Answers  

---

is there any difference between protection C.T and measuring C.T?if yes then what is the difference?

4 Answers   BARC, Century Rayon,

---

---

Why P.f. of the system decreases when it is connectect across induction motor? & how to maintain the p.f. of system to unity.?

6 Answers   Reliance,

---

can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

---

what is the switching substation

2 Answers  

---

What is converter transformer? Diff b/w converter transformer and distribution transformer? why we use converter transformer in place of giving supply to drives?

1 Answers  

---

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

---

The iron loss in a 100kva transformer is 1 kw and full load copper losses are 2 kw, then what is maximum efficiency occure at a load?

3 Answers   MPSC,

---

what is the significance of 3.5 core cable? or what does this half core mean and why is it required?

5 Answers  

---