what is the relevance of knee point voltage in protection and metering grade CT ? and basically what is knee point voltage ?

2 Answers  

---

define B types and C types in MCB ?

3 Answers   Bhel,

---

Is possible to increase the voltage without using transformer? why?

9 Answers  

---

what is LSR?

0 Answers  

---

What is the difference between online and offline UPS

1 Answers  

---

---

is the value of inductance depends upon the value of thitha in doubly excited machine??

0 Answers  

---

What type of input will the OLTC indicator will accept or what type of output the OLTC will produce to monitor it's position at remote location.

1 Answers   amps,

---

Why substation battery room is coulered black?

1 Answers  

---

To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

---

how to check capacitor in general

1 Answers  

---

Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

---

why in US MAINTAIN 60hz,110volts when compared with 50hz,220v in india

2 Answers  

---