What is Primary and Secondary Injection Test of CT and Relay.

2 Answers  

---

why transformer rating in kva?

7 Answers  

---

How is the air circuit breaker quenching the arc. If it is by air means, where is it come from?

1 Answers  

---

What is transmittance?

0 Answers  

---

Which is the best between SCADA & PLCC & Why ?

2 Answers   ABC,

---

Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com

0 Answers  

---

what is the different between surgearrester and lighting arrester

4 Answers   HPCL,

---

Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

---

What is the role of ESP(Electro Static Precipitator)in steam power plants? Where it is located? How it works?

1 Answers  

---

how can we test the vector group of transformer

1 Answers  

---

How colour picturetube works & how many year it will works.

0 Answers  

---

what is ten delta test? what is the significanse of it

1 Answers  

---