WHAT IS THE REASON FOR THE GROUND PIN IS BIGGER IN SIZE COMPARING TO OTHER PINS?

13 Answers  

---

Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.

2 Answers  

---

what the purpose of protection signaling equipment in substation?

2 Answers  

---

in most industies hormonics present up to some level. what is limit ? and there effect?

4 Answers   Bhel,

---

How much water ( Kilo Liters) a submercible pump of 35 HP can lift from Borewell of 6" and 900 feet dip.

2 Answers  

---

---

What is the meter used to check the DG sound level.and pollution check

2 Answers  

---

Why dose voltage rated at 11kva

1 Answers   TK Chemical Complex,

---

WHAT IS THE DIFFERENCE BETWEEN SHOP DRAWINGS/ DESIGN DRAWINGS AND AS BUILT DRAWINGS??

2 Answers   ACC, Al-Jaber, Dubai Group, ECEC,

---

If the capacity of water Tank is 50000 Liters situated at 20 meters height from ground level,What would be the size of pipe and how much USGPH water will be supplied and what will be the motor or pump rating used for this work?Illustrate by showing formula?

1 Answers  

---

For 33 kv HT line how much amps fuse to be fitted pls explain with formula

1 Answers   Suzlon,

---

My switchgear busbar is rated at 2000A and just imagine the actual load on busbar is 1000A. From that busbar there are 10 outgoing feeders. Now the question is will the load be 1000A on each outgoing feeder or 100A per outgoing feeder. 2nd thing how do i calculate the load on individual feeder. Thanks for your time. Please provide some clarification on this issue.

1 Answers   Alstom,

---

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

0 Answers   Power World,

---