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Capacitors for motors

Regardless of the design, materials used, and size - the task of capacitors in electric motors is to accumulate and store electrical charge. Depending on their purpose in the electrical system, capacitors are divided into two main types: starting capacitors and working capacitors.

Starting capacitors are components of the design of various types of motors or lighting devices. They allow the immediate start-up of an electrical device in which a large dose of electrical energy needs to be supplied at one time. This type of motor capacitor acts like the starter of a car engine. Its use makes it possible to gently start the entire device by using a previously accumulated large amount of energy.

Work capacitor. Unlike starting capacitors, motor run capacitors are designed to accumulate electrical charge, store it, and release it as needed by the electrical circuit. It helps improve the power factor of the motor and stabilize its performance. The use of a running capacitor ensures stable operation of the device protects against overloading or overheating of the motor. Capacitors play a crucial role in creating a rotating magnetic field essential for the efficient operation of single-phase motors.

What are the most important parameters of electrolytic capacitors?

Capacitance sensitive in farads [F] tells what amount of charge a capacitor can accumulate at a given voltage. This ability is significantly influenced by the capacitor plates and the dielectric material between them, as these aspects determine how effectively a capacitor can store and separate charges. Due to the size of the unit, in practice its fractional values such as microfarads (μF) or picofarads (pF) are used.

The tolerance expressed as a percentage describes the capacitance with which the capacitor can achieve in relation to the value stated on the case. For example, an electrolytic capacitor may have a specific tolerance characteristic, indicating how close the actual capacitance value is to the stated value. The lower this tolerance (usually 5, 10, or even more %), the closer the component approaches the declared value.

Maximum operating voltage given in volts [V] a very important parameter - it tells what maximum voltage can be applied to the capacitor. Do not exceed this value because it can lead to its damage. The insulating dielectric between the capacitor plates plays a crucial role here, preventing the plates from touching and ensuring the capacitor does not get damaged by high voltages.

When choosing a starting capacitor, it is important to pay attention to its parameters: capacitance, voltage, and mounting method to perfectly match the needs of your motor. In the case of such a cheap component, not only the price should guide our choice. It is necessary to pay attention to the dimensions, puncture voltage, method of attachment. In our assortment, you will find products with a capacity of a few to more than a hundred microfarads, high efficiency, with easy-to-install connectors and wires for easy replacement and maintenance.

We offer only high-quality products from reputable manufacturers, which are mainly used in equipment that requires solid support at the moment of start-up - from small tools to large industrial machines. In-stock availability, competitive prices, and simple and fast online ordering make buying from us a pleasure.