The present invention relates to a current transformer is a current ratio and the phase difference method analytical model, comprising the steps of: (1) establish the principle of open-type current transformer models; (2) derived Ohm's law of magnetic open formula when the magnetic circuit of ...
The formula for computing the ratio of a CT is as follows: Xnew / Ynew =(Xstandard + (Ystandard * # of secondary wraps)) / Ystandard* # ofprimary wraps Xnew = The desired numeratorXstandard = The numerator of the ratio of the standard, stocktransformerYnew = The new denominator; ...
an odd ratio which is not available commercially. In these instances it is possible to use additional wraps of either the primary line or the secondary lines to change the ratio of a standard transformer to have the desired ratio. The formula for computing the ratio of a CT is as follows:...
The relation be- tween VC and peak current in the power stage is given by: Figure 8 0019-9 Deadtime vs CT (RT > 5k) Figure 9 0019-10 Timing Resistance vs Frequency where: N = current sense transformer turns ratio = 1 when transformer not used. For purposes of small-signal analysis,...
Calculating Current Ratio in Current Transformer The current on the secondary winding is proportional to the current flowing through the center of the core. Let's suppose thecurrent ratio of CTis 5A:5mA, which means 5 amps on the primary circuit would produce 5 milliamps on the secondary windi...
secondary winding of the current transformer; and determining at least one of a ratio error and a phase angle associated with the current transformer based on the excitation current and the excitation wattage; wherein the current transformer remains in a position adjacent to an electrical apparatus....
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FBCT Fast-beam current transformer LHC Large Hadron Collider LPF Low-pass filter PCB Printed circuit board RF Radio frequency RMS Root mean square SNR Signal-to-noise ratio VNA Vector network analyser WCT Wall current transformer References Evans, L. The Large Hadron Collider: A Marvel of Technolo...
Figure 9. MSE of ANN training according to dataset ratio. Table 1. Result of training data ratio based on the q-axis current controller dataset. (2) Step 2: training algorithm validation Based on previous results, the ratio of the test data was configured as follows: training 70%, vali...
undesirable effects if the large eddy current is allowed into the core of a choke coil, transformer, etc. by making use of a laminated core, the eddy currents produced in the core of a transformer are reduced. in the present day, electric brakes are provided on the trains in addition to...