Answer Posted / abubakar siddiq

normally generation voltage is 11kv . if we have to transmit
this power to large distance we must increase voltage and
decrease current to reduce I^2R losses so we increase the
voltage to 33kv if distance is not large and if distance is
very large 400kv , 500kv .. These are only standards by IEC ..
any other cab be used. but we use this bcoz standard
transformer , cables , insulators , arrestors for these
nominal voltages are available

what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.

1937

---

what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor

2050

---

how oti and wti connections are different from each other?

2011

---

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2029

---

what happen when increase or decrease size of lamp,light.glass.

1875

---

what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4464

---

sir, Is their any measuring unit of knoking? please explian?

1839

---

What is the drawback of class b amplifier?

1120

---

Why cables and busbar both needed in LT Panels?

2132

---

How we calculate the size of ht cable for any transformer

2033

---

Why collecting electrode of ESP to be earthed

2074

---

What is the ratio of Booster transformer?

2118

---

how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.

2231

---

what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

2027

---

What is meant by load angle of an alternator? Upon what factors does the load angle depend?

2953

---