Detect the CVT with abnormal measurement in real-time without power outages. The regulation for determining abnormal CVT is its error surpass the limits. Can apply to all
Customer ServiceDetect the CVT with abnormal measurement in real-time without power outages. The regulation for determining abnormal CVT is its error surpass the limits. Can apply to all voltage transformers with different accuracy levels. Experiments verify this
Customer ServiceIn other words, an online detection method was developed based on double capacitors that has a simple structure, high measurement accuracy, fast detection speed, and low cost.
Customer ServiceIn that case, an online moisture detection device was designed, which is based on double capacitors. A new method of capacitance complementation and integration was proposed to eliminate the limitation of single data. The device is composed of a sampling mechanism and a double-capacitor sensor consisting of a flatbed capacitor and a cylindrical
Customer ServiceIn this contribution, we optimize the structure of double-input capacitively coupled contactless conductivity detector (DIC 4 D) that proposed before by our group and successfully applied it in...
Customer ServiceIn this paper, an online detection method based on load classification has been proposed. Several identification parameters are first put forward to classify loads. With these parameters, low-load modeling and monitoring data of the period of industrial users stably out of operation are screened out. Finally, online monitoring is achieved by the principal component
Customer ServiceAnalyte: composé(s) cible(s) d''intérêt pour la détection lors d''une analyse HPLC. Phase mobile: phase en mouvement composée de solvants ou d''éluants circulant de l''injection à la détection . Phase stationnaire: phase immobile où se produit la séparation physique des substances à analyser. Débit: vitesse d''écoulement de la phase mobile en fonction du temps
Customer ServiceThe current study aimed to develop the moisture content detection of corn harvesters and even combine harvesters. In other words, an online detection method was developed based on double capacitors that has a simple structure, high measurement accuracy, fast detection speed, and low cost. A detection system was built with the STM32 chip micro
Customer ServiceComprehensive detection method for multi-contaminants in hydraulic oil based on inductance-resistance-capacitance analysis Author links open overlay panel Haotian Shi a 1, Shuang Yu a 1, Yucai Xie a 1, Wei Li a, Hongpeng Zhang a, Yiwen Zheng a, Shuyao Zhang b, Guobin Li a, Yuqing Sun a, Haiquan Chen a
Customer ServiceIn this study, the Lift-off Characteristics (LoC) of the hybrid structures are studied, and an effective method for identifying relevant indications such as defect and anomaly for dual-mode sensor response signals with lift-off interference by combining the testing data of both detection modes and the LoC curve is proposed.
Customer ServiceThe invention also relates to an apparatus and method for identifying the location of the fault (e.g., the section of the bank) in a double ungrounded shunt capacitor bank or double WYE shunt
Customer ServiceTo tackle this challenge, this paper proposes an extension of the nonlinear double capacitor model by increasing its order, parameter dependency with C-rate, and an
Customer ServiceAimed at the problems of the poor detection stability and low accuracy of the current grain moisture content detection device in harvesters, a dual-capacitor detection device was designed. The complementarity and integration between the two groups of capacitors were used to improve the detection stability and accuracy. The structure
Customer ServiceIn this paper, an improved double inputs direct contact and single output capacitively coupled conductivity detector (DISODCD) based on traditional contactless capacitively coupled
Customer Service提出了一种新的电容互补积分方法来消除单一数据的限制。 该装置由采样机构和由平板电容器和圆柱电容器组成的双电容器传感器组成。 通过仿真优化确定了电容器极板的最佳结构尺寸。 除此之外,还开发了包含软件和硬件的检测系统来估计水分含量。 进行室内动态测量试验,分析温
Customer ServiceThe physical mechanism of CVT ME is as follows: From Fig. 1, the high voltage U p on the primary side is divided into medium voltage by the CVD, and then the medium voltage is reduced into the low voltage output U s by the IVT. Since the high voltage U p is stepped down by the CVD, the insulation requirement for the IVT is reduced. The CVD is composed of hundreds
Customer ServiceIn this contribution, we optimize the structure of double-input capacitively coupled contactless conductivity detector (DIC 4 D) that proposed before by our group and successfully applied it in...
Customer ServiceIn that case, an online moisture detection device was designed, which is based on double capacitors. A new method of capacitance complementation and integration was proposed to eliminate...
Customer Service提出了一种新的电容互补积分方法来消除单一数据的限制。 该装置由采样机构和由平板电容器和圆柱电容器组成的双电容器传感器组成。 通过仿真优化确定了电容器极板的最佳结构尺寸。 除此之外,还开发了包含软件和硬件的检测系统来估计水分含量。 进行室内动态测量试验,分析温度和孔隙率的影响。 基于影响因素和电容,建立了估计水分含量的模型。 最后,建立了电容和水分
Customer ServiceIn that case, an online moisture detection device was designed, which is based on double capacitors. A new method of capacitance complementation and integration was proposed to eliminate...
Customer ServiceTo tackle this challenge, this paper proposes an extension of the nonlinear double capacitor model by increasing its order, parameter dependency with C-rate, and an identification procedure that exploits the pseudo-linear nature of
Customer ServiceThe proposed method is able to deal with capacitor unit failure detection in internally and fuse-less configurations of double wye SCBs. • The proposed method is able to identify element failures within one cycle delay after a failure takes place in multiple phases on both sides of the SCB. •
Customer ServiceIn this study, the Lift-off Characteristics (LoC) of the hybrid structures are studied, and an effective method for identifying relevant indications such as defect and anomaly for
Customer ServiceThe invention also relates to an apparatus and method for identifying the location of the fault (e.g., the section of the bank) in a double ungrounded shunt capacitor bank or double WYE shunt
Customer ServiceUnder dynamic conditions, the response time of traditional voltage detection methods is relatively lengthy, leading to overshoots in the DC-link voltage of single-phase power converters, which significantly degrades system performance. This study proposes a rapid voltage transient detection method based on reduced-order generalized integrator (ROGI) aimed at
Customer ServiceIn this paper, an improved double inputs direct contact and single output capacitively coupled conductivity detector (DISODCD) based on traditional contactless capacitively coupled conductivity detector (C 4 D) is developed. The sensor uses double inputs of the contact electrode and capacitively coupled output of the contactless electrode and a
Customer ServiceModular multilevel converter-based solid-state transformers (MMC-SST) usually use the input series output parallel structure or the dual active bridge (DAB) structure. These two structures suffer from low power supply reliability and high economic costs, respectively. Therefore, based on hybrid frequency modulation, this paper proposes an arm integrated
Customer ServiceIn that case, an online moisture detection device was designed, which is based on double capacitors. A new method of capacitance complementation and integration was proposed to
Customer ServiceAimed at the problems of the poor detection stability and low accuracy of the current grain moisture content detection device in harvesters, a dual-capacitor detection
Customer ServiceIn this contribution, we optimize the structure of double-input capacitively coupled contactless conductivity detector (DIC 4 D) that proposed before by our group and successfully applied it in the capillary electrophoresis of inorganic ion analysis.
Jaanus et al. 17 and Stojkovic et al. 18 proposed two electrode pairs C 4 D detector, which are arranged in two different capillary channels. This improvement provided an effective compensation which can suppress of the influence of the parasitic stray capacitance and decrease the baseline conductivity of the separation buffer.
Zemann et al. 6 and Fracassi da Silva et al. 7 proposed the use of C 4 D in capillary zone electrophoresis and proved the advantages of C 4 D. Since then, much effort has been made to improve the performance of the contactless conductivity detectors. Do Lago et al. 8 improved the hardware and optimized the operational parameters.
To decrease the contact resistance and capacity, the gaps between the copper wires were filled with conductive paints. The electrodes and their locations in DIC 4 D were identical to those in C 4 D. To prevent the signal from environmental interferences, a strict electromagnetic shielding was used.
In the practical substation, the most accurate device for voltages sampling are the energy meter with 0.2% ratio error, which is too rough to estimate the CVTs with this PCA method. Therefore, the wide application of high-accuracy energy meters is the foundation of this method.
As mentioned in the reference 15, 27, the noise in C 4 D capillary electrophoresis mainly includes thermal noise, chemical noise from the chemical transformations during the electrophoretic run, noise from the signal generator, and ripple of the high-voltage source.
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