What is Overload Overcurrent and the difference between them?
Hello friends, today we will know what is overload and overcurrent and with this we will also talk about the difference between overload overcurrent.
By the way, friends, whenever we look at the names of both overload and overcurrent, then it becomes completely clear to us from their name that after all what these two tell us inside the electrical system.
But after understanding this, then many times we get confused in short circuit and overcurrent, so that is why we will also know some important things about short-circuit current within this topic.
For now let us first understand what is overload condition.
What is Overload
Overload means that any device we have, if we give more load to that device than 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 makes me lift 50 kg instead of 40 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 on this shaft than its capacity, then this condition is called overload condition.
Is overload harmful or not?
The simple answer to this is that if there is talk of over anywhere, such as overload, over-voltage, over-current. So this condition is always harmful. Because over the limit simply means that the limit is exceeded.
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 ampere 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 arises, then finally what is the difference between overload and overcurrent, because whenever our motor runs on overload, it takes more current, then both overload and overcurrent become the same thing. Because in both the motor takes more current.
But friends it is not like that at all. Overcurrent is dependent on many conditions, such as when the equipment is running at high load, when the motor is jammed or the supply voltage going to the motor is too high, besides earth fault, due to all these reasons. There may be a condition of overcurrent.
Difference between Overcurrent and Short-circuit?
We 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 short circuit in the motor running on the same 10 ampere current, then in this, not 50-100 amperes are lost in our motor but thousands of amperes are lost in minutes.
Because short-circuit is said to be the condition when a face-neutral touches each other or if any 2 faces 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.
Question: What is Overload and Overcurrent difference?
Question: What is the difference between overload and short circuit?
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.
Overload- All electrical equipment is designed to handle a limited amount of load. Now whenever we connect more load than this on our equipment, it is called 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.
Overcurrent - A condition in which the current flowing through an appliance exceeds its current carrying capacity (FLA), then this condition is called overcurrent.