Effect of Inductive and Capacitive Loads on the Circuit Breaker

The effect is that the energy stored in the inductor or capacitor must go somewhere when the circuit breaker trips.

"What is the difference between the separated inductive loads or capacitive loads"

I agree. Once the breaker trips, what the difference?

Agreed, .....but maybe OP is asking if circuit breakers will trip at different points if a load is capactive or inductive? For example, contactors are rated diferently for resistive or inductive loads.

Having looked through the OP's previous started topics I get the feeling this site is being used for homework.

I'm shocked!

Go through books on CB and check the impact of the arcing/restriking/reclosing between contacts due to pf of loads.

"high" voltage will not be greater than Vrms = 120v for US or 230v for brits, no matter what the how much phase difference between current and voltage

What will be the effect of harmonics in the load/wave?.

Given your previous substation and 132kV high voltage questions I really hope this is homework and not the fact you have indicated you don't understand basic fundamental concepts of capacitance, inductance and circuit breaker datasheets and application notes which clearly indicate what the difference is.

We don't answer homework questions here.

I'm certain that this is homework, the OP signed into CR4 last September. If this was work related questions the OP would likely be dead or fired by now. I hope a second semester of failing grades will convince the OP that power distribution work is not their field.

My cup currently runnith over with optimism so I have assumed the same thing, regardless of how he phrases his questions to imply he actually works in or on a substation but lacks key knowledge and skills that are required to perform said work (even for a graduate consultant).

_{Jack - Actually works in and on substations.}

Circuit breakers trip on over-current. They don't care about lead or lag.

agreed, assuming its the "regular" thermo-magnetic type, and not relay controlled by a relay which monitors phase

Disagreed, nothing after the comma in posts #6, 11 & 13 is correct or relevant.

Dear Mr.FADHEL,

Once the Circuit Breaker trips, the Capacitors will have to discharge the charge with in it by the Resistance or else that will result in Electrical Shock. Caution is required to attend the problem.

DHAYANANDHAN.S

Dear sir

thank you very much for your reply

but Which is more influential on circuit breaker capacitive load or inductive load?

thanks & regards

Capacitor switching duty tends to be harder on the contacts because electrostatic discharge times tend to be shorter with a steeper wavefront while an inductor's electromagnetic discharge times are a bit longer with a less steep wavefront. It's one of the reasons that properly sized discharge resistors are used in commercial Power Factor Correction equipment.

Dear Mr. FADHEL,

It is Capacitive Load more influential.

DHAYANANDHAN.S

thank you very much