answersLogoWhite

0


Best Answer

In AC circuits (regular household circuits), the voltage source changes the polarity of its output regularly. In India, this happens 100 times per second. By contrast, in DC circuits, the current flow is unidirectional due to the fixed polarity of the voltage source. This leads to undisrupted, longer and sustainable arcs in DC circuits (the reason why arc welding machines use DC current and not AC current).

While breaking a DC circuit, it is easy to form such arcs, and if they are not extinguished in time they lead to device overheating and ultimately to fire. AC circuit breakers are not equipped well enough to deal with such arcs, whereas DC circuit breakers have special arc chutes to capture arcs and extinguish them safely, hence they are highly recommended.

User Avatar

Wiki User

βˆ™ 8y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the difference between AC MCB and DC MCB?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the difference between AC and DC choke?

There is no difference between AC AND DC chockes


What is the difference between ac and dc grounding?

The difference AC and DC grounding is that AC is alternate current and DC is direct current. Grounding for both AC and DC is the same.


What is the difference between in ac and dc powwer cable?

There is no difference in the cables. The only difference is the type of electrical power being transmitted. AC or DC applications use the same wires.


What the difference between AC and DC?

AC rises with respect to time but DC is steady.


Difference between magneto and ac generator?

magneto is dc


What is the difference between ac ammeter and dc ammeter?

dc ammeter has three connecting pins while ac has four


What is main difference between ac power and dc power?

AC power is made by alternating current and DC does not change.


What is the difference between current (DC) and alternating current (AC)?

ac comes directly from the power socket, and DC is battery source. Answer2: The frequency is the difference, AC has frequency f>0 and DC does not f=0.


What makes a dc bulb different from an ac bulb?

The voltage source that is applied to them is the difference between AC and DC light bulbs.


What is the difference between a voltage converter and a voltage inverter?

Converter is AC to DC. Inverter is DC to AC


What is difference between magneto and AC generator?

a magneto puts out dc electricity


Difference between AC and DC generator?

The major difference between an AC generator and a DC generatoris that the DC generator requires a mechanism to provide a DC output. This can be done mechanically with a commutator or electronically with a rectifier. Internally, all generators produce an alternating voltage. Allgeneratorsrequire a magnetic field.