Answer Posted / anil chopra

we use four earthing for this purpose . two for
alternator's star point earthing and using as neutarl.

and two for body earthing .

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

1983

---

checking procedure of capacitor based motors.used in fans etc?

2122

---

In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

3138

---

how to generator maintenance (A Check, B check,Etc)

2304

---

how many current required for hypo test

1975

---

what is solkor relay and which condition it will act?

3363

---

THERMAL CAPACITANCE IS MEASURED IN..................................................

2150

---

what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

2338

---

why do we have spikes enough to burn electronic boards, when generators are not grounded

1815

---

I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

2385

---

what is resver in electrical enginnering with answer

1717

---

What is the function of electron gun assembly used in crt?

1186

---

how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.

1611

---

If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

2228

---

electrical knowelge

1179

---