Examples of using Vlf in English and their translations into Russian
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Very Low Frequency(VLF) Direction Finding.
VLF ionospheric response to the processes of earthquake preparation.
The load is connected to the HV output andground return of the VLF unit.
Fluctuations of VLF Radio Waves in the Earth-Ionosphere Waveguide.
What are the reasons for the difference in the size of the two boosters in the 60KV VLF Hipot tester?
VLF cable testing is a technique for testing of medium voltage cables.
Work was done on the design of a VLF experiment for the second South African scientific satellite.
VLF systems are advantageous in that they can be manufactured to be small and lightweight;
Accessories for partial discharge testing is also available from several VLF test set manufacturers.
Can the VLF Hipot tester test Partial Discharge and time domain reflectometers?
Narrowband data means monitoring the amplitude and phase of a single frequency,corresponding to a VLF transmitter.
The VLF Hipot tester can not test it, Power frenquency testing transformer can test it.
Atmospheric Weather Educational System for Observation and Modeling of Effects(AWESOME) Very Low Frequency(VLF) Radio.
VLF cable testing is a technique for testing of medium and high voltage(MV and HV) cables.
Collecting narrowband data involved monitoring the amplitude and phase of a single frequency,corresponding to a VLF transmitter.
VLF testing of cables is supported in IEC 60502(up to 35kV) and in IEEE 400.2(up to 69 kV).
Specific features of variations in the characteristics of VLF signals when the lunar shadow propagated along the path during the solar eclipse of March 29, 2006.
The VLF test can be used in two ways, China supplier Huazheng Electric to introduce you as follows.
For instance, the appearance of atmospheric optical phenomena such as sprites, elves, andjets over Europe corresponded to VLF disturbances that could be clearly detected in North Africa.
Can the VLF Hipot tester test the withstand voltage of a plastic plate(see when it is punctured)?
Presentations and detailed tutorials focused on a broad array of topics, from lightning,ionospheric VLF propagation, earthquakes, cosmic gamma-rays and sprites, as well as community building.
VLF technology VLF(Very Low Frequency) is a conventional single frequency sine wave transmission technology.
The proposed programme would facilitate the establishment and conduct of VLF observations in the European sector, thus providing a basis for comparison to facilitate global extrapolations and conclusions.
The VLF cable testing time varies from 15 to 60 minutes. IEEE Guide 400.2 establishes some suggested test voltages and times.
The proposed programme will facilitate the establishment and conduct of VLF observations in the European sector, thus providing a basis for comparison to facilitate global extrapolations and conclusions.
Apply VLF to XLPE cables in a monitored withstand approach to detect potential failures(faults) in the cable insulation during a planned outage.
The tested cable must withstand a VLF(Very low frequency) AC voltage for a specified testing time without flashover.
VLF cable testing uses different wave shapes typically sine and square, voltages expressed for these wave shapes differ as RMS is not always applicable.
By monitoring the signal strength from distant VLF transmitters and noting unusual changes as the waves bounce off the ionosphere, these disturbances can be monitored and tracked.
The VLF receivers, provided partly by Stanford University and developed partly under the leadership of the DLR School-Lab, are capable of monitoring sudden ionospheric disturbances caused by solar flares.