Answer / bala_vlsi

Cu
u can consider 1.4 A / sqmm
Al
u can consider 0.8 A / Sq mm
eXAMPLE
50 X 6 CU busbar
50x 6 = 300 x 1.4 = 420 A
It is suitable for 420 A capacity


50 X 6 Al busbar
50x 6 = 300 x 0.8 = 240 A
It is suitable for 240 A capacity

Answer / vishnu.a

load is the major thing to determine busbar..
aluminium bus bar
Amps=1.2x area.............. if busbar size is 50x6 means
we can allow 360 amps
copper bus bar
approximately amps=area

differentiate between c curve and d curve MCBS?

1 Answers  

---

What is meant by a stray loss of a induction motor??? What is the equation to find it

0 Answers  

---

A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 Answers   DRDO,

---

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

0 Answers  

---

The unit of current is the:(a) Volt(b) Coulomb(c) Joule(d) Ampere

2 Answers  

---

Give some differences between open loop and closed loop control systems.

0 Answers   GE,

---

what use can we make of 3rd harmonic component

5 Answers   Bhel, General Motors GM,

---

What is LSIG ?

6 Answers   Apollo Power,

---

How many type of ht insulator with name

1 Answers   Bhushan Power Steel,

---

Why transformer used in UPS??

0 Answers   JLL,

---

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 Answers  

---

how many Classification of fire extinguisher

0 Answers   Juniper Networks,

---