Answer / sandeep

Please provide the steps (answer is .05)

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

---

why Copper loss is represented as I square R ?

5 Answers   L&T,

---

why we short ckt the secondry vo5tage/ winding in transfr and motor?

2 Answers  

---

Why OLTC(On Load Tap Changing)transformer is not recomended for improving voltage instability?

2 Answers  

---

what is the speed of current

4 Answers  

---

How much ampere can withstand for 2sq mm c able?

2 Answers  

---

how to measure the dc current?

3 Answers  

---

Why smallest capacity LV motor are star connected and medium & bigger size LV motors are delts connected

1 Answers  

---

what is the voltage of insulation megger that should be used for measuring the resitance of 66kv equipments.

3 Answers   DEWA,

---

How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil?

2 Answers  

---

which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?

0 Answers  

---

what r the tests on the 3 phase transformers can any one explain how to test using megger on transformers thx

2 Answers  

---