The series resonance test device is mainly used for AC withstand voltage testing of high-voltage power cables. Finding the series resonance value of power cables is a necessary test item before the new high-voltage cables are put into use, in order to save power in future power supply. At the same time, if the power engineering company wants to apply for the qualification of testing electricity, it also needs to prepare a set of series resonance test equipment in advance for inspection. So, what is the quotation for the series resonance test equipment and how much does it usually cost?

The series resonance test device consists of a variable frequency power supply, an excitation transformer (also known as an excitation transformer), a reactor, and a capacitive voltage divider; The capacitor and reactor of the test sample form a series resonant connection: a voltage divider is connected in parallel to the test sample to measure the resonant voltage on the test sample and provide overvoltage protection signals. The frequency modulation power output is coupled to the series resonant circuit through an excitation transformer to provide excitation power for series resonance.  

The series resonance test device adopts a multi-stage superposition method, and multiple reactors can be used in parallel or series. The voltage divider is used to measure the test voltage; It can also be used as a compensation capacitor for small capacitance samples. Enable the resonant frequency to perform AC withstand voltage tests on various power equipment within the range of 30-300Hz; The basic principle of series resonance is to use adjustable (30-300Hz) series resonance test equipment to resonate with the capacitance of the test object to generate an AC test voltage.  

The series resonance test device is suitable for AC withstand voltage testing of cables such as 10kV and 35kV; The series resonance withstand voltage test utilizes the inductance of a reactor and the capacitance of the test object to achieve capacitance resonance, obtaining high voltage and high current on the test object; The cable AC withstand voltage test device mainly consists of a variable frequency power supply (host), excitation transformer, resonant reactor, and capacitive voltage divider; Widely used in industries such as power, metallurgy, petroleum, and chemical; Suitable for the handover and preventive testing of high-capacity, high-voltage capacitive specimens.