Question

it is advantageous to use MCB than a fuse give reason

Answer 1

MCB has several advantages over fuse:

MCB is more sensitive to current than fuse. It detects any abnormality in the current flow and automatically switches off the electrical circuit.

In case of MCB, the faulty zone of electrical circuit can be easily identified. Faulty circuit trips to the off position. On the other hand in case of fuse, the complete fuse wire needs to be checked by opening fuse grip for confirming the faulty zone.

With MCB it is very simple to resume to the supply. You just need to push the knob of MCB back to on position. But in case of fuse, the entire fuse wire needs to be replaced.

MCB provides a better interface with the help of knob than a fuse. In case of fuse the compete handle needs to be taken care out.

Handling MCB is electrically safer than handling a fuse.

MCB is reusable and hence has less maintenance and replacement cost. Whereas a fuse needs to be replaced whenever it goes faulty.

Answer 2

ᴀɴsᴡᴇʀ࿐

ᴅᴇғɪɴɪᴛɪᴏɴ:-

ᴀ ᴍɪɴɪᴀᴛᴜʀᴇ ᴄɪʀᴄᴜɪᴛ ʙʀᴇᴀᴋᴇʀ ᴏʀ ᴍᴄʙ ɪs ᴀɴ ᴇʟᴇᴄᴛʀᴏᴍᴀɢɴᴇᴛɪᴄ ᴅᴇᴠɪᴄᴇ ᴛʜᴀᴛ ʜᴀᴠᴇ ᴀ ᴄᴏᴍᴘʟᴇᴛᴇ ᴍᴏʟᴅᴇᴅ ɪɴsᴜʟᴀᴛɪɴɢ ᴍᴀᴛᴇʀɪᴀʟ. ᴛʜᴇ ᴍᴀɪɴ ғᴜɴᴄᴛɪᴏɴ ᴏғ ᴛʜɪs ᴅᴇᴠɪᴄᴇ ɪs ᴛᴏ sᴡɪᴛᴄʜ ᴛʜᴇ ᴄɪʀᴄᴜɪᴛ ᴡʜᴇɴ ᴀᴄᴄᴇss ᴄᴜʀʀᴇɴᴛ ɪs ᴘᴀssᴇᴅ

ᴡᴏʀᴋɪɴɢ ᴏғ ᴍᴄʙ:-

ᴛʜᴇ ᴍᴄʙ ᴡᴏʀᴋs ᴀs ᴀ sᴡɪᴛᴄʜ ᴡʜɪᴄʜ ɪs ᴀ ᴍᴀɴᴜᴀʟ sᴡɪᴛᴄʜ sʜᴏʀᴛ ᴄɪʀᴄᴜɪᴛ ᴏʀ ᴏᴠᴇʀʟᴏᴀᴅ sɪᴛᴜᴀᴛɪᴏɴs, ᴛʜᴇ ᴅᴇᴠɪᴄᴇ ᴀᴜᴛᴏᴍᴀᴛɪᴄᴀʟʟʏ ᴛʀɪᴘs ᴡʜᴇɴ ᴀᴄᴄᴇss ᴄᴜʀʀᴇɴᴛ ɪs ᴘᴀssᴇᴅ.

ᴜsᴇs ᴏғ ᴍᴄʙ

1.ᴛʜᴇʏ ᴀʀᴇ ᴜsᴇᴅ ɪɴ ʜᴏᴍᴇ ᴀᴘᴘʟɪᴀɴᴄᴇs.

2.ᴛʜᴇʏ ᴀʀᴇ ᴜsᴇᴅ ɪɴ ʜᴇᴀᴛᴇʀs.

3.ᴛʜᴇʏ ᴀʀᴇ ᴜsᴇᴅ ɪɴ ɪɴᴅᴜsᴛʀɪᴇs.