Answer Posted / imran siddique

when air circulate in Breather (fill with silica Gel)and breather absorb moisture in air for oil temperature down of transformer.

Buchholz Relay use for trip and alarm circuit when transformer temperature high.

Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m

2345

---

What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

1309

---

LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?

1680

---

A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

923

---

what is the difference b/w ground & virtual ground?

1850

---

---

ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

3710

---

Earth is a conductor or load?then ammeter connect to 3- phase supply,it shows the measurents or not?

1644

---

why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

1525

---

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

4410

---

According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?

1453

---

What is the different types of cable & current capacity of cable

1446

---

Why synchorised generators are used for the production of electricity?

718

---

What is bode plot?

811

---

what are inherent currents?

1577

---

wheather the size of windings in motor and generator are the same

1513

---