Ultra-Low Frequency Cable Tensile Strength Tester

Cable Series Resonance Technology Description:TPXBThe Series Cable AC Voltage Withstand Test Device utilizes the adjustment of power supply frequency to achieve resonance between the reactor and the capacitor under test, generating high voltage and large current on the test item. This represents a new method and trend in high-voltage testing and has been widely applied domestically and internationally.

Principle of Cable Series Resonance Technology: TPXBSeries Cable AC Voltage Withstand Test Device utilizes a dedicatedSPWMDigital waveform generator chip, frequency resolution16Position, at20～300HzThe time-frequency resolution is up to0.1HzOur company has adopted an orthogonal asynchronous fixed carrier modulation method, ensuring excellent output waveforms across the entire frequency range; the power section utilizes advanced technology.IPMModule, inForever.LongEnsuring stability and safety for the testing device under low weight conditions.

Cable Series Resonant Device Composition:TPXBThe series cable AC withstand voltage test device consists of a frequency-modulated voltage regulator, excitation transformer, reactor, and capacitor voltage divider.

Series Resonant Function

1、35kVCables with voltage ratings of and below are widely used, resulting in a substantial amount of testing work. Therefore, this type of high-voltage test device is compact, lightweight, and portable, giving rise to the birth of the portable cable high-voltage testing system.

2This system requires that individual components can be moved on-site by a single person, with a weight limit of no more than30kgThe requirement is that no part to be moved on-site by two people should exceed a certain weight.60kgIdeal for on-site handling

3Power supply adopted220VSingle-phase Power Supply380VSingle power source, convenient for on-site power access

4The reactor section uses dry epoxy casting for aesthetics and reliability, suitable for various cable requirements.

5、110kVAbove voltage level cable withstand voltage test uses oil-immersed reactor, with the individual weight exceeding100kgAt present, our company's dedicated small electric crane is available for optional configuration.