Two-Stage Coaxial Inductive Voltage Divider and Its Calibration Setup for Use Between 1 and 100 kHz

2015 ◽  
Vol 64 (6) ◽  
pp. 1670-1675 ◽  
Author(s):  
Marc Florian Beug ◽  
Harald Moser
Keyword(s):  
Voltage Divider ◽  
Two Stage ◽  
Inductive Voltage Divider ◽  
Calibration Setup

Design and Calibration of Inductive Current Transformer

2013 ◽  
Vol 860-863 ◽  
pp. 2261-2265
Author(s):  
Quan Wang ◽  
Huan Wang ◽  
Qiong Xiang
Keyword(s):  
Design Principle ◽  
Voltage Divider ◽  
Current Transformer ◽  
Two Stage ◽  
Error Level ◽  
Future Design ◽  
The Future ◽  
Inductive Voltage Divider

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.

scholarly journals A Two-Stage, Guarded Inductive Voltage Divider with Small Ratio Errors for Coaxial Bridge Applications

ACTA IMEKO ◽  
2012 ◽  
Vol 1 (1) ◽  
pp. 49 ◽  
Author(s):  
Gregory A Kyriazis ◽  
J Angel Moreno ◽  
Jürgen Melcher
Keyword(s):  
Quantum Hall ◽  
Voltage Divider ◽  
Calibration Method ◽  
Hall Resistance ◽  
Two Stage ◽  
Traceability Chain ◽  
Small Ratio ◽  
Capacitance Bridge ◽  
Inductive Voltage Divider ◽  
Terminal Pair

The traceability chain to derive the capacitance unit from the quantum Hall resistance comprises some coaxial bridges. These bridges employ a main two-stage inductive voltage divider to provide the voltage ratio needed. One such divider has been recently constructed and calibrated at Inmetro. The design techniques responsible for the small ratio errors of the device and the calibration method employed are both detailed. The new divider was installed in Inmetro's two terminal-pair coaxial capacitance bridge with significant improvements in the bridge resolution and accuracy.

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