Answer Posted / shaik

First of all the voltage ratings given in the question might
be wrong. But the basic rule for calc. the ampacity is to
first find out the current..

Power/ Volts = Amp.

Then the ampacity of the conductor is choosen by taking 125%
of the current.

Here if i consider voltage of this tranformer to be 22/.433
kv. then on primary side the busbar capacity has to be,

1000x1000/22x1000 =45.45 A

45.45x 1.25=56.81 Amps.

Therefore the busbar capacity on primary side should not be
less than 60 Amps.

Similarly, secondary side is calc.

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

2393

---

What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

2396

---

2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

2375

---

How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?

2235

---

where lt & ht capacitor used

2281

---

What is meant by stator? What is meant by rotor?

1173

---

Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

2016

---

detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron

3178

---

UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1976

---

State nyquist stability criterion.

1236

---

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

2200

---

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

2047

---

What is 100% protection of generator? Why 100% is not used but 95% is generally used?

1094

---

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

2019

---

How I calculate the ELCB for circuit breakers?

2234

---