Wuhan UHV specializes in producingseries resonance (also known as AC/DC withstand voltage test device). Next, we will share with you the characteristics of the AC/DC withstand voltage test device.
When the capacitance calculation reactance XC is equal to an inductance reactance XL, that is, the voltage U in XC=XL, the circuit and current pass through the same phase, and the circuit presents pure resistance This phenomenon is called series resonance. If a series system resonance occurs in a circuit, the impedance of circuit Z=√ R2XC-XL2=R, the minimum value of the total impedance in the circuit, and the current will reach this maximum value danger
When resonance occurs, due to the presence of equivalent inductance and capacitance, the root mean square voltage across the inductance and capacitance is equal to ul=uc. High voltage wireless phase analyzer receiving system host safety check: Long press the "on/off" button to turn on the device, the screen displays normally, and the power consumption can be displayed in the upper right corner. If the power quickly shuts off automatically, it indicates that the battery level is too low. Please charge before use.
The nuclear phase analyzer, also known as the wireless controlled high-voltage nuclear phase analyzer, is a newly developed new type of nuclear phase product that can be used in 35 and 110 kV systems to determine whether the phase information of two national power grids (generator sets) of the enterprise is the same, in order to determine grid connection. The insulation tube of the high-voltage phase analyzer is made of high-performance insulation material, and the phase analyzer adopts a plastic shell with a movable bracket, which can flexibly change the viewing angle of the phase analyzer on the insulation tube, making it easy to use and install. The high-voltage phase detector adopts wireless network transmission information technology, with a safe and reliable operating system, easy to use, and overcomes many disadvantages of wired phase detectors. It meets the relevant course standards for quality management supervision, inspection, and testing of safety tools in our country's power enterprises. Compared with wired nuclear cores, its main advantages are the removal of lead (power) connected to both ends of the power grid, the use of terrain free and facility free architecture, and the adoption of methods to improve safety. This product has reliable information security, stable performance, and easy operation, making it an ideal nuclear phase instrument for society. In addition, due to the opposite phase, the two different voltages of students can cancel each other out.
The effective value is in the capacitor or inductor current voltage: UL=UC=XLI0=ω 0LIO=ω 0LU/R, where ω 0L/R is called a resonant control circuit, which represents the quality influence factor of the operating voltage ratio. The UC/U or UL/U quality factor is an important information technology parameter for measuring the structural design characteristics of resonant control circuits in enterprises. For example, the larger the reactance and the smaller the resistance in a circuit, the higher the quality factor. Therefore, the voltage value on the capacitor or through the inductor will be much larger than the applied voltage. Generally, inductors and capacitors are used, and the quality variables of resonant circuits can reach tens or even hundreds. So we can use series resonance, also known as voltage resonance. In the power management system, series resonance can generate overvoltage several times higher than the rated output voltage of the power grid, which poses a great threat to the safety environment of power electronic equipment.
In the R-L-C series circuit design, the phenomenon where voltage and current can be in the same phase is called series resonance The prototype of the XZB-Z series resonant frequency booster (CVT has parity), XZB-G frequency AC voltage resonant equipment, and BPXZ-Z resonant frequency voltage testing equipment for altimeters are widely used in various high and high voltage AC withstand voltage and cable voltage testing equipment, transformers, generators, GIS switches, and other motors. This device has multiple key information technologies that have obtained national patents, and with the introduction of advanced science and technology and equipment from China, it has achieved an overall improvement in the international advanced cultural level. Completely foolproof operation, automatic testing.
