Hello friends, today we will understand what is overload and overcurrent, and we will also talk about the difference between overload and overcurrent.
Friends, if we look on the name of overload and overvoltage. as their name suggest what they have significant in the electrical system.
But after understanding this, many times we confused in short circuit and overcurrent, so we will also see some important things about short-circuiting current in this post.
For now, let us first understand what is overload condition.
What is Overload?
Overload means that any device we have, is connected with more load then its capacity, then it is called overload condition. We can understand this better with the help of an example.
Example- Suppose I am a human and my capacity is that I can lift weight up to 40 kg, now if someone forcefully order me to lift 50 kg instead of 40kg, then this condition will be called overload condition for me.
The same if we talk about the motor, then there is a shaft / rotor of different capacity inside all the motors, which have different capacities. Now, if we give more load than its capacity, this condition is called an overload condition.
Is overload harmful?
The simple answer of this question is that if there is over anywhere, such as overload, over-voltage, over-current. So this condition is always harmful. Because over mean more than limit. So more then limit is always harmful.
What is Overcurrent?
We can easily understand what is over current with the example of a motor. Suppose we have a motor whose FLC means full load current is 10 ampere. But due to some reason, this motor takes more than 10A current, then this condition is called overcurrent.
Now here another question arise, that what is the difference between overload and overcurrent, because whenever our motor runs on overload, it takes more current, then both overload and overcurrent condition happen.
But friends it is not always true. Overcurrent is dependent on so many conditions, such as when the equipment is running at a high load, if the motor
get stuck or if the supply voltage going to the motor is too low, or their is any earth fault, due to all these reasons. The condition of overcurrent may come.
What is the difference between overvoltage and overcurrent?
Let us also understand the difference between overcurrent and short circuit with a practical example of a motor.
Example- Let’s say we have a motor which is running on 10 amp current. Now whenever there is a condition of overcurrent in our system then this motor will start taking a little more than 10, like 15A-20A, and if we talk about the maximum current passing through this motor at the time of overcurrent then it will be 80-100 at most. Could be ampere.
But if we look back at the condition of the short circuit in the motor running on the same 10 ampere current, then in this, not 50-100 amperes is flowing in our motor but thousands of amperes is flowing in minutes.
Because short-circuit is called that condition when a phase-neutral touches each other or if any 2 phase meet together, then it is called short circuit. In short circuit condition, more than 1000 amperes flow through the circuit within 1 millisecond.
Friends, now we talk about what you have to answer if you are asked a question about it in the interview.
What is Overload and Overcurrent difference?
Ans: Overload- all electrical appliances are designed to handle a limited amount of load, when we connect more Load than this, it becomes an overload condition.
Overcurrent- a situation in which the current flow in a device is more than that its current capacity. That is called over current.
We hope that you understand. if still any doubt or question remains then feel free to ask in comment section or you can ask this question on Instagram (Click Here).
If you like to see practical videos of electrical engineering then you can subscribe to our YouTube channel “Electrical Dost” (click Here).
Thank You.
