scholarly journals Passive‐compensation clamp‐on two‐stage current transformer for online calibration

Author(s):  
Haoliang Hu ◽  
Yan Xu ◽  
Xiong Wu ◽  
Fuchang Lin ◽  
Xia Xiao ◽  
...  
1991 ◽  
Vol 40 (3) ◽  
pp. 633-635 ◽  
Author(s):  
J.L. West ◽  
P.N. Miljanic

2013 ◽  
Vol 860-863 ◽  
pp. 2261-2265
Author(s):  
Quan Wang ◽  
Huan Wang ◽  
Qiong Xiang

In this paper, the design principle of inductive current transformer is introduced at first. Then an inductive current transformer is produced by applying the structure of two-stage inductive voltage divider. And finally, the error of the sample machine is given through examine test, and the suggestion for improving the machine is given based on the data. The data from the sample machine shows that: without compensation winding, the error level of 1200 ampere-turn of inductive current transformer can reach 0.1 level, after adding the compensation winding, it can reach 0.02 level. The design and data have laid a foundation for the future design of inductive current transformer with higher level of accuracy.


1922 ◽  
Vol 41 (6) ◽  
pp. 389-398
Author(s):  
H. B. Brooks ◽  
F. C. Holtz

ACTA IMEKO ◽  
2012 ◽  
Vol 1 (1) ◽  
pp. 85 ◽  
Author(s):  
Daniel Slomovitz ◽  
Leonardo Trigo ◽  
Carlos Faverio

A current transformer with electronic assistance was developed, intended for current to voltage transducers. It is based on the two-stage principle, and it includes electronic compensation for magnetizing errors as well as capacitive errors. The nominal input currents go from 1 A up to 100 A, and the nominal output current is 0.2 A. Using a load of 10 Ohm, the nominal output voltage is 2 V, with 0.4 W of dissipation.


Author(s):  
Sengshiu Chung ◽  
Peggy Cebe

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.


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