ECW-H10203RHV

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Film capacitors are widely used in different application fields for its advantages in electrical and mechanical performances compared to other capacitor technologies, such as electrolytic and ceramic. As a major category of film capacitors, AC motor capacitor, also known as Motor Run Capacitor or Motor Starting Capacitor, is mainly used as motor starting device in the circuit and can significantly improve the power factor of the current waveform, stabilize the motor voltage and extend the service life of motor. Among various AC motor capacitors, ECW-H10203RHV is one of the popular types widely used for its excellent electrical performance in medium voltage frequency range.

ECW-H10203RHV is typically constructed with metallized polypropylene film, securely prepared with resin impregnated paper separators and housed in resin sealed fireproof aluminum case. Due to its non-inductive winding structure, the capacitor can hold very high current inrush as the motor start and shut off, making the device an excellent AC motor capacitor. The other outstanding features include good electrical performance in various operating conditions, high impact dielectric strength, corrosion free, high operating temperature and long life span.

As for its application field, ECW-H10203RHV is mainly used for motor drive applications such as compressor motor, pump motor and fan motor in HDTV, audio visual system, air conditioners and refrigerators. The capacitor is typically connected in series with the single phase power supply and motor winding. When the motor is started up, the motor stop capacitor will start to draw power from the power source, providing extra power for the motor to spin up in initial period. After the motor has achieved steady running state, the capacitor would have been charged initially by power source and will be discharged in the running period until the next start up.

As for its working principle, as mentioned before, it is normally connected in series with the motor and power source. When motor is starting up, current flows through the capacitor and charges itself. The excess electrical current would be used to provide power for motor meanwhile motor can start up with reduced current drawn from power source. When the motor achieves running state, the current of the capacitor starts to discharge by gradually decreasing until the next start up, saving energy. By this means, the power factor of the current waveform is improved, motor voltage is stabilized and the service life of the motor extends.

In conclusion, ECW-H10203RHV is an excellent AC motor capacitor with excellent electrical performance and multiple advantages for its application field and working principle. Thanks to its long lifespan, high impact dielectric strength and good ability to handle current inrush, the capacitor is widely used in motor drive applications in HDTV, audio visual system, air conditioner and refrigerator.

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