Answer / mehul g. c.

mcb will protect you system against overload & short circiut.
because it is having thermomegnatic strip it will open the
contact when current exeeding his normal alue.

but

isolater is one switch only. you can operate when you want
break the power of your system in maintenance or for the
other work

in short mcb will trip automatically and protect your system
& isolater is operated manually.

single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?

7 Answers   Citec,

---

how to calculate 3 phase clearance in Tower line , 33& 11 KV Line and LT Line.

1 Answers  

---

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers  

---

why dc source used for HV breakers and Relays operation?

2 Answers   Cethar,

---

Why Drives are used to run AC motors?

3 Answers  

---

---

what is the function of open delta System?

1 Answers  

---

i have interview in Pepsi company what type of question will ask please send the question and answeer

0 Answers   Pepsi,

---

how much percentage set in transformer diffrencialrelay

1 Answers  

---

what types of cable used in underground coal mining?

0 Answers  

---

IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

10 Answers  

---

Who is reputed manufacturer of TNC switch for ACB in India ?

3 Answers  

---

FRIENDS, I am doing DEEE (part time)final year. Give me some ideas for project

5 Answers   HCL,

---