Answer Posted / pankaj

THERE IS A SIMPLE CALCULATION IF ASSUMING INFINITE SOURCE
BUS THE MAX LEVEL OF FAULT AT LT SIDE OF A 11/0.433 5%
1000KVA TRANSFORMER CAN BE CALCULATED AS:

KVA*100/SQRT3*433*Z% kAMPS

1000*100/1.732*433*5 = 26.7kAMS

if sf6 gas low in gis what will happen

807

---

best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?

1697

---

What is mason's gain formula?

1283

---

How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

2352

---

how to select fuse rating for a 3-phase motor ???

1783

---

how technical is calculated in 11kv line and lt line

2027

---

how we can calculate the efficiency of a diesel generator ?

1682

---

what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

2014

---

what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

2253

---

What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?

2024

---

why is control bus bi-directional?

2133

---

how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?

2620

---

(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

2030

---

Why do we use copper cable for HT Supply and why not Aluminium?

1996

---

When color of silica gel will gets change from blue to pink from Top to bottom?

1583

---