Inductive Absorbers
Inductive absorbers, specifically CoolBlue inductive absorbers, are devices used to protect motor bearings from damage caused by electrical discharge machining (EDM) and other factors. Motor bearings are critical components in a system's electric motor, and their proper functioning is essential for reliable operation.
One of the main concerns in motor applications is the occurrence of bearing currents, which can be generated by high-frequency noise from variable frequency drives (VFDs) and other sources. These bearing currents can lead to pitting, fluting, and other forms of damage to the motor bearings over time.
Inductive absorbers, such as CoolBlue inductive absorber rings, provide a solution to mitigate these damaging currents. They are typically made of nanocrystalline material, which has excellent magnetic properties. These absorbers are designed to be easily installed around the motor shaft or incorporated into motor components, offering a time-saving and convenient solution.
More Information about Inductive Absorbers
The inductive absorber rings work by creating a low-impedance path for high-frequency noise and common mode currents, diverting them away from the motor bearings. By absorbing excess current and reducing the effects of high-frequency noise, the inductive absorbers help protect the bearings and extend their lifetime.
Traditional shaft grounding methods, such as brush contact and grounding rings, may require regular maintenance, lubrication, and can be affected by environmental factors. CoolBlue inductive absorbers offer enhanced system reliability by reducing brush contact, minimizing maintenance costs, and providing a more durable solution.
The inductive absorbers operate by grounding the high-frequency noise and common mode currents, preventing their transmission to the motor bearings. This reduces the risk of electrical discharge and shaft contaminants, which can cause damage to the bearings and affect the motor's performance.
The installation of CoolBlue inductive absorbers is relatively easy, and they can be integrated into the system without major modifications. By reducing the damaging currents and protecting the motor bearings, these absorbers contribute to overall system efficiency and help avoid costly downtime.
FAQs
What are inductive absorbers used for?
Inductive absorbers counteract high frequency VFD noise and transient voltage, that may damage motor bearings and bearing components.
Inductive Load Basics
Electrical load is an electrical component or portion of a circuit that consumes electrical power. For example, a power source such as a battery or generator will have a load which consumes that power, such as a light bulb, motor or television.
There are three types of electrical loads: capacitive loads, resistive loads and inductive loads
Capacitive and Resistive Loads
Capacitive loads are similar to inductive loads in that the current and voltage are out of phase with one another, however, capacitive loads see the current reach its maximum before the voltage, while inductive loads see the voltage reach its maximum before the current. Resistive loads typically consist of things like heating elements.
Inductive Loads
Inductive loads use a coil to produce a magnetic field. The most common types of inductive loads are motors, fans, blenders and pumps. Inductive loads resist change in current, which lags behind the voltage. There are two different types of power with inductive loads. There is real power, which is based off of the work that is actually being done by the motor and there is reactive power, which is the power that is drawn from the power source to produce the magnetic field. The total power of an inductive load combines both the real power and reactive power.