Cable Oscillation Wave

Background Introduction

Cable Oscillation Wave Test SystemOWTS，Oscillating Wave TestSystemIt is a type of application that has demonstrated good results both domestically and internationally in recent years.XLPE Technology for the Testing of Power CablesOWTS The system's testing principle involves initially applying pressure to the cable being tested, followed by generating a damped oscillating voltage with frequencies ranging from tens to hundreds of hertz within the cable (close to the actual operating frequency of the cable). This induces local discharges at the cable's weak insulation points. The cable's discharge level is then calculated and located based on the received discharge pulse signals. Due to the extremely short duration of the oscillation testing process, which is only about a few hundred milliseconds, the damage to the cable is negligible; the resonant voltage frequency is close to the working frequency, and the test conditions are very similar to the cable's actual operating conditions; it not only measures the severity of internal cable defects but also locates them; it is compact and easy to carry.OWTS These superior features of the system make it the primary method for inspecting cable insulation.

Introduction to Inspection Equipment and Systems

OHV M30+ / M60+The series is an integrated partial discharge location system, primarily used for partial discharge diagnosis of medium-voltage cables. The system's testing frequency is20Hz At several hundred hertz of damping AC voltage (DACThe damping AC voltage generated during the system's testing process can reach high levels.30-60kV, coupled with advanced system hardware and software for diagnostics, the system integratesVLFPlease provide the Chinese content you would like translated.DACThe unit can measure cable oscillation wave partial discharge (double-end location test) and also perform ultra-low frequency dielectric withstand tests on cables. The on-site voltage test combines non-destructive partial discharge testing with dielectric loss measurement, serving as a fundamental and effective testing method for cable operation, maintenance, and repair.

The tested cable is charged to working voltage within a few seconds using direct current power.(Rated Voltage)Real-time quick status toggleSClosed, the cable under test and the hollow inductor form a series resonant circuit; the circuit begins tof=1/2πThe oscillation frequency is determined by the choice of the hollow inductor value, which is selected according to the requirements of the resonant frequency, with a frequency range.50～1000HzSimilar to industrial frequency.