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Ultra low frequency dielectric loss of mv28-vlf cable
■ Product introduction
Mv28-vlf cable ultra-low frequency dielectric loss is a truly compact and portable ultra-low frequency test system for testing medium and low voltage cables. The instrument can be applied to the withstand voltage of cables below 6kV, dielectric loss and partial discharge of cables below 10kV. The instrument itself integrates the dielectric loss diagnosis system, and has various test functions such as cable withstand voltage test, outer sheath test, outer sheath fault location, DC test, dielectric loss test, etc. at the same time, the instrument is a lighter cable tester in the world, which integrates withstand voltage and dielectric loss test, and the peak voltage can reach 28kv.
■ Technical parameter
| Input voltage | 100~240 V 50/60 Hz (400 V A) |
| output voltage | Sinusoidal: 0 ~ 28 kV peak value, 20 kV effective value DC: ± 0 ~ 28 kV Square wave: 28 kV, accuracy: ± 1%, resolution: 0.1kv |
| Output current | 0 ~ 20 MA (resolution 1) μ A) Accuracy: ± 1% |
| Resistance range | 0.1 MΩ~5GΩ |
| output frequency | 0.01 ~ 0.1 Hz, each step 0.01 Hz (default 0.1 Hz) ~ automatic frequency selection |
| Sheath test | Test voltage: 10 kV Current: 0.1 Ma ~ 5.0 Ma |
| Test mode | AC (VLF) in the whole range, symmetrical and load independent, DC (positive or negative), Recording / fault condition or fault trip mode, sheath / sheath test |
| Measure | Voltage and current (true RMS and / or peak), capacitance, resistance, time, flashover voltage |
| Dielectric loss accuracy | ± 1 x 10 -4 |
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