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Load Models
Published in William H. Kersting, Robert J. Kerestes, Distribution System Modeling and Analysis with MATLAB® and WindMil®, 2022
William H. Kersting, Robert J. Kerestes
The individual phase capacitor units are specified in kvar and kV. The constant susceptance for each unit can be computed in Siemens. The susceptance of a capacitor unit is computed by Bc=kVAr⋅1000kVLN2S
Characterization of Pb and Cd contaminated sandy soil by dielectric means
Published in Noor Amila Wan Abdullah Zawawi, Engineering Challenges for Sustainable Future, 2016
H.M. Al-Mattarneh, R.M.A. Ismail, M.F. Nuruddin, N. Shafiq, M.A. Dahim
If the material forms a part of an electronic circuit using parallel plate capacitor, the admittance of the material can be measured. The admittance is a complex number or quantity has real component (Y’) called conductance (G) and an imaginary component (Y”) called susceptance (B) as given in Equation 2. ()
Parallel alternating-current circuits
Published in Adrian Waygood, An Introduction to Electrical Science, 2013
Figure 28.11 shows exactly the same admittance diagram, but expressed directly in terms of conductance(G), inductive susceptance(BL) and admittance(Y), each expressed in siemens (S).
Detection of multiple structural damages from drive point and cross electro-mechanical impedance signatures
Published in Mechanics of Advanced Materials and Structures, 2022
Umakanta Meher, Mohammed Rabius Sunny
The EMI technique involves the use of PZT transducers which are bonded to the host structure that needs to be monitored. High-strength epoxy adhesives are generally being used for the PZT-host structure bonding. A harmonic voltage is applied to the patch by an impedance analyzer or an LCR (inductance, capacitance, and resistance) meter. Application of this time-dependent voltage leads to mechanical vibration in the host structure because of the electromechanical coupling present in the piezoelectric materials. And due to this mechanical vibration, an electrical output signal is obtained at piezoelectric patch. Using an impedance analyzer or an LCR meter, variation of admittance i.e., the ratio of current to voltage across the patch thickness with the applied voltage frequency can be measured. Conductance (G) and Susceptance (B) are, respectively, referred as the real and imaginary parts of the measured electro-mechanical (EM) admittance. The reciprocal of admittance is known as impedance (Z). When a single PZT patch is used for measuring the current and applying voltage, the admittance and impedance are called drive point admittance and drive point impedance, respectively.
Investigation of magnetron injection locking and cascaded locking by solid-state microwave power source
Published in Journal of Microwave Power and Electromagnetic Energy, 2019
Wenjie Fu, Yang Yan, Xiaoyun Li
According to the Equivalent-Circuit Method, a magnetron can be represented as an RLC resonant circuit (Pengvanich et al. 2005) as shown in Figure 1. In the figure, g is the electronic conductance, and b is the electronic susceptance, both of which are related to the electron beam–wave interaction inside the cavity. The admittance of the magnetron to the load is represented as where is the electronic conductance of the load, and is the electronic susceptance of the load. The injection source can be represented as an additional slow time variety admittance The term represents the reflection efficiency and The additional admittance is represented as where and are the electronic conductance and the electronic susceptance related to the injection source. The injection source is connected to the magnetron in parallel with the load, so the total load admittance of the magnetron in the injection-locking system is
Improvement optimal power flow solution under loading margin stability using new partitioning whale algorithm
Published in International Journal of Management Science and Engineering Management, 2019
buses ,, respectively and is the angle difference between buses and respectively. and are the conductance and susceptance of the admittance (). , are the limits on the voltages related to control buses. , are the limits of active power of generating units and , are the minimum and maximum of reactive power of thermal units. , are the limits on the tap ratio (T) of transformer and , are upper and lower susceptance limits of shunt SVC Controllers. , are the limits on voltage magnitude at loading buses (PQ buses) and is the maximum apparent power transit in lines.