What is the function of resistive load?
A load resistor is a resistor that has the sole function of increasing the load resistance of the circuit to a specific level. So that’s the “what.” To understand the “what for,” let’s look at two ways load resistance can be critical to proper operation of a DC control or communication circuit.
What kind of load is a resistive load bank?
Resistive Load Banks – The most common type, resistive load banks mimic the operational load that a power source will see in actual use. They convert electrical energy (current) into heat using power resistors and dissipate the heat using air or water.
What is meant by 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.
What is the input resistance of an electronic load?
With current sensing at 1 V/A and voltage sensing at 0.2 V/V, the electronic load’s resulting input resistance value is 5 ohms for its CR mode operation in Figure 5. An electronic load’s CR mode is well suited for loading a power source that is either a voltage or current source by nature.
When to use CR mode for voltage loading?
An electronic load’s CR mode is well suited for loading a power source that is either a voltage or current source by nature. The corresponding I-V diagram for this CR mode for loading a voltage source is shown in Figure 6.
How are resistive and inductive load banks used?
The resistive and inductive load elements may be independently controlled to produce purely resistive or inductive loads or to adjust the power factor as required. Notably, load banks with more than one type of element can accommodate the widest range of applications.
How are resistive, inductive and capacitive load elements used?
Load banks are available with resistive, inductive, and capacitive load elements. Resistive units test power sources without changing the power factor. Inductive and capacitive load elements can be used to simulate for non-unity loads and to adjust the power factor of circuits.