Details
| Original language | English |
|---|---|
| Title of host publication | 2012 IEEE International Conference on Power System Technology (POWERCON) |
| Pages | 1-6 |
| Number of pages | 6 |
| Publication status | Published - 1 Oct 2012 |
Abstract
Keywords
- compensation, frequency response, harmonic analysis, potential transformers, transformer windings, first natural frequency compensation, inductive medium voltage transformers, harmonic measurement, high measurement errors, frequency harmonic monitoring, zero points, pole points, resonance compensation, transformer winding, transformation error minimization, Frequency measurement, Resonant frequency, Current measurement, Distortion measurement, Capacitance measurement, Capacitance, Lead, capacitance, instrument transformers, resonance
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2012 IEEE International Conference on Power System Technology (POWERCON). 2012. p. 1-6.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Compensation of the first natural frequency of inductive medium voltage transformers
AU - Buchhagen, C.
AU - Hofmann, L.
AU - Däumling, H.
PY - 2012/10/1
Y1 - 2012/10/1
N2 - Up till now inductive voltage transformers are only suitable for measuring harmonics if high measurement errors are acceptable. However, as monitoring frequency harmonics becomes more important, the design of inductive voltage transformers needs to be changed in a way to increase its frequency range. The poles and zero points of the frequency response of voltage transformers can be compensated by using different methods. One possibility is to connect an external capacitance to the half winding in order to compensate the first resonance or to connect it to the quarter of the winding in order to compensate the second natural frequency. Another alternative is to change the winding itself for compensating resonance frequencies without using any capacitances. Finally, it is explained how to minimize the transformation error at frequencies up to 9 kHz.
AB - Up till now inductive voltage transformers are only suitable for measuring harmonics if high measurement errors are acceptable. However, as monitoring frequency harmonics becomes more important, the design of inductive voltage transformers needs to be changed in a way to increase its frequency range. The poles and zero points of the frequency response of voltage transformers can be compensated by using different methods. One possibility is to connect an external capacitance to the half winding in order to compensate the first resonance or to connect it to the quarter of the winding in order to compensate the second natural frequency. Another alternative is to change the winding itself for compensating resonance frequencies without using any capacitances. Finally, it is explained how to minimize the transformation error at frequencies up to 9 kHz.
KW - compensation
KW - frequency response
KW - harmonic analysis
KW - potential transformers
KW - transformer windings
KW - first natural frequency compensation
KW - inductive medium voltage transformers
KW - harmonic measurement
KW - high measurement errors
KW - frequency harmonic monitoring
KW - zero points
KW - pole points
KW - resonance compensation
KW - transformer winding
KW - transformation error minimization
KW - Frequency measurement
KW - Resonant frequency
KW - Current measurement
KW - Distortion measurement
KW - Capacitance measurement
KW - Capacitance
KW - Lead
KW - capacitance
KW - instrument transformers
KW - resonance
U2 - 10.1109/PowerCon.2012.6401406
DO - 10.1109/PowerCon.2012.6401406
M3 - Conference contribution
SP - 1
EP - 6
BT - 2012 IEEE International Conference on Power System Technology (POWERCON)
ER -