Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calibrated Single-Contact Voltage Sensor for High-Voltage Monitoring
  Applications   A single-contact voltage sensor designed for accurate measurements of ac
voltages across a pair of conductors is described. The sensor design is
motivated by remote monitoring applications where accurate voltage measurement
of high-voltage transmission lines is required. The body of the sensor is
electrically and mechanically attached to a single conductor: either the
neutral or high-voltage conductor. A capacitive sensing plate attached to the
sensor creates a capacitive voltage divider using the stray capacitance to the
non-contacted line. A very high-impedance buffer is used to measure the voltage
across the divider output and estimate the line voltage. An important part of
the work includes a method of calibrating the sensor such that blind voltage
measurements can be made without knowing the exact geometry of the conductors.
Other important aspects of the design include a two-stage voltage divider for
retaining accuracy and increasing the voltage range of the sensor. The work is
supported by extensive numerical simulation models which were used to determine
the optimum design for the sensing plate and to evaluate the sensitivity to
different configurations including conductor spacing and the height above
ground. For calibration values which are accurate to 1%, the line voltage can
be measured with an accuracy of 10%. The paper describes the theory, design,
and experimental verification of the sensor up to a line voltage of 7.5 kVrms.

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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
0
The categories of this paper are: hep-ph