Contents
What is the difference between an inductive load and a resistive load?
In resistive loads, such as light bulbs, the voltage and current waves match, or the two are in phase. As you might guess from the name, resistive loads only resist the current and are the simplest type of load. In inductive loads, such as an electric motor, the voltage wave is ahead of the current wave.
Is the load inductive or capacitive?
In a capacitive load, current and voltage are out of phase as with an inductive load. The difference is that in the case of a capacitive load, the current reaches its maximum value before the voltage does. The current waveform leads the voltage waveform, but in an inductive load, the current waveform lags it.
What does a resistive load create?
Some examples of resistive load are electric heater, filament bulbs, etc. Resistive loads are very constant in nature. They only oppose the flow of current and do not make any changes in the voltage and current. Resistive load generally produces heat when an electrical supply provided to it.
How do you calculate inductive load?
In inductors, voltage leads current by 90 degrees. The formula for calculating the inductive reactance of a coil is: inductive reactance, or XL, is the product of 2 times p (pi), or 6.28, the frequency of the ac current, in hertz, and the inductance of the coil, in henries.
What is resistive load example?
Two common examples of resistive loads are incandescent lamps and electric heaters. Resistive loads consume electrical power in such a manner that the current wave remains in phase with the voltage wave. That means, power factor for a resistive load is unity.
How is an inductive load different from a resistive load?
An inductive load is a type of load that consume reactive power because the current now lags the voltage. Inductive loads require magnetic field to operate. So, appliances and gadgets made of coils are inductive in nature. Inductive loads take time to develop there magnetic field when the voltage is applied, so the current is delayed
What’s the difference between resistive and capacitive load?
Whereas, in case of resistive load both current & voltage becomes zero at same time. Therefore, switching such type of inductive loads is critical. Such type of load also affects the power factor of system heavily. And hence, electricity bill goes up. Capacitive load is similar to that of inductive load.
When does voltage become maximum in a resistive load?
If you look at the current & voltage waveforms of such load you’ll find that, when current is zero, voltage is maximum. And hence, when circuit breaker opens at current zero, voltage across the breaker contact is maximum. Whereas, in case of resistive load both current & voltage becomes zero at same time.
How does inductive load affect the power factor?
Therefore, switching such type of inductive loads is critical. Such type of load also affects the power factor of system heavily. And hence, electricity bill goes up. Capacitive load is similar to that of inductive load. In capacitive loads also, current & voltage are out of phase with each other.