The portable frequency conversion resonant booster device for cables adopts the method of adjusting the frequency of the power supply to make the reactor and the capacitor under test resonate, and obtain high voltage and large current on the test product. It is a new method and trend of current high voltage test. , Has been widely used at home and abroad.
The special frequency conversion resonance test device for cables adopts SPWM digital waveform generation chip, the frequency resolution is 16 bits, and the frequency fineness can reach 0.1Hz at 20~300Hz; the special frequency conversion resonance test device for RC series cables adopts orthogonal non-synchronous fixed type The carrier modulation method ensures a good output waveform in the entire frequency range; the power part adopts the IPM module to ensure the stability and safety of the instrument.
The cable special frequency conversion resonance test device is composed of a frequency and voltage regulation power supply, an excitation transformer, a reactor, and a capacitor voltage divider.
technical parameter
● Rated power: 6kW;
● Input voltage: three-phase 380V±5% or single-phase 220V±5% 45～65Hz. When the power supply is 380V, rated load test can be done; when the power supply is 220V, only 1/2 load test can be done.
● Output voltage: 0～400V adjustable
● Output voltage frequency: 20～300Hz
● Frequency adjustment: 0.1Hz step adjustable
● Frequency instability: ≤0.02%
● Output current: 0～30A
Features:
● The portable advantage of the special frequency conversion resonance test device for cables. There are a large number of cables with voltage levels of 35kV and below, and the test workload is large. Therefore, this type of withstand voltage test device is small in size and light in weight.
● The special frequency conversion resonance test device for cables requires that the weight of the parts that a single person can move on site does not exceed 30kg, which is suitable for on-site transportation;
● The power supply of the cable special frequency conversion resonance test device adopts 220V single-phase power supply or 380V single-phase power supply, which is convenient for on-site power supply;
● The reactor part of the cable special frequency conversion resonance test device adopts dry epoxy casting, which is beautiful and reliable, and is suitable for the requirements of various cables.
Mobile version
15388193573
