Answer / shyamkr

megger is used to measure the insulation resistance only
whereas multimeter is used to measure resistance,ac
voltage,dc voltage,ac current,dc current etc....

Answer / bpn

megger is used to test the dielectric coaxial cable
whereas miltimeter is used to measure current(ac&dc),voltage
(ac&dc),resistance,npn&pnp diode's emitter,base &collector etc

Answer / milan

MULTIMETER IS USED TO MEASURE THE DC VOLTAGE & CURRENT,AC
VOLTAGE,B OF TRANSISTOR, CONTINUIETY,RESISTANS,etc...

while, MEGGER IS USED TO MEASURE INSULATION RESISTANS OF
THE CABLE OR ANY WINDING....

what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?

0 Answers  

---

What will hapen if we connect more capacitors than required for powerfactor control? Exactly what will be the effect on power system?

2 Answers   Mandovi Pellets,

---

In CDG type IDMTL realy O/L , E/F, O/C which are used for out going feedrs,on R-phase o/c element, Y-phase , e/f elecment and on b -phase o/c element will be connected . Why the earth fault on center phase only, why not on other two phases?

2 Answers  

---

MCB is used for high rating &MCB is used for lower rating.What is technical difference between ACB & MCB?

7 Answers  

---

in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

0 Answers  

---

why most of the induction are delta connected?

6 Answers  

---

Does the ferranti effect has some impact on the electricity billing system on high voltage installations?

1 Answers   IISc,

---

What it is the diff btw Package & PEC AC's????

2 Answers   Emerson,

---

whata is battery charger ?how many cells connected for 110v?

1 Answers   Essar,

---

Difference between online and offline UPS?

11 Answers  

---

why generally transformer are in star to delta

3 Answers  

---

I have calculated load for an office building which is 1200 KW as all the load is single phase therefore its 1200 kw single phase. Now i have to design Transformer and Generator for this load Please kindly give me exact answer that how much capacity of Three Phase Transformer and Three Phase Generator is required for this load.

3 Answers  

---