Traceability and Characterization of a 1000 kV HVDC Reference Divider

Elg, Alf‐Peter; Bergman, Anders; Hällström, Jari; Kharezy, Mohammad; Nieminen, Tatu

doi:10.1109/tim.2015.2410373

Cited by 10 publications

(9 citation statements)

References 7 publications

(18 reference statements)

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“…The noise is higher on positive voltage, which indicates that external corona may be the primary cause. There is also a drop in the scale factor quotient at the end of the run, which was due to the degradation of three resistors, discovered after disassembly of the reference divider [17]. The difference in observed scale factor difference between 200 and 1000 kV is approximately 30 µV/V.…”

Section: B Comparison Between Systems B and Dmentioning

confidence: 97%

“…The scale factors for the different module combinations and SP reference divider [17] calibrated at low voltage are shown in Table I. The values shown in the table are corrected for the effects of heating and voltage dependence at full nominal voltage for each divider.…”

Section: Measured Scale Factorsmentioning

confidence: 99%

“…The nine 200-kV modules are named HV#.#, and the six low-voltage arms LV#. The investigation also comprised a precision reference divider using wire-wound resistors [17] and owned by SP. Fig.…”

Section: Laboratory Setupmentioning

confidence: 99%

“…Divider D is a resistive divider based on wire-wound resistors [17], consisting of a stack of 40 modules rated 25 kV each.…”

Section: Laboratory Setupmentioning

confidence: 99%

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Performance of a Modular Wideband HVDC Reference Divider for Voltages up to 1000 kV

Hällström

Bergman

Dedeoğlu

et al. 2015

IEEE Trans. Instrum. Meas.

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This paper describes the design and performance of a modular wideband high-voltage dc (HVDC) reference divider with a ratio uncertainty of less than 0.005% at 1000 kV. The divider has a maximum nominal voltage of 1000 kV when five 200-kV modules are stacked on top of each other. The divider is used for traceable calibration of HVDC measuring systems in customers' laboratories. The first priority in the design was the accuracy of HVDC measurements. In addition, the divider was designed to have wide bandwidth, both to enable measurement of ripple voltages and to prevent damage during possible flashovers.

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Section: B Comparison Between Systems B and Dmentioning

confidence: 97%

Section: Measured Scale Factorsmentioning

confidence: 99%

Section: Laboratory Setupmentioning

confidence: 99%

“…Divider D is a resistive divider based on wire-wound resistors [17], consisting of a stack of 40 modules rated 25 kV each.…”

Section: Laboratory Setupmentioning

confidence: 99%

See 2 more Smart Citations

Performance of a Modular Wideband HVDC Reference Divider for Voltages up to 1000 kV

Hällström

Bergman

Dedeoğlu

et al. 2015

IEEE Trans. Instrum. Meas.

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“…The two stacked modular dividers were compared with each other; the modular 1000 kV divider was also compared with a resistive 1000 kV reference divider based on wire-wound resistors [2]. A six hour long run of the latter comparison is shown in Fig.…”

Section: Electrical Connectionmentioning

confidence: 99%

Performance of a modular wideband 1000 kV HVDC reference divider

Hällström

Bergman²,

Dedeoğlu

et al. 2014

29th Conference on Precision Electromagnetic Measurements (CPEM 2014)

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This paper describes the performance of a wideband HVDC reference divider. The divider concept is a shielded modular divider and it is intended for traceable calibration of HVDC measuring systems up to 1000 kV in customers' laboratories. The first priority in the design was the accuracy of HVDC measurements. In addition, the divider was designed to have wide bandwidth, both to enable measurement of ripple voltages and to prevent damage during possible flashovers.

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Development of –1 MV DC Filter and High‐Voltage DC Measurement Systems for ITER NBI

Takahashi

Tanaka

Fujita

et al. 2018

Electrical Engineering Japan

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This paper presents the development results of a −1 MV dc filter and dc measurement systems for an ITER (International Thermonuclear Experimental Reactor) neutral beam injector (NBI) system. High accuracy of 0.5% and fast responsivity of 3.3 μs, −3 dB are required for the dc measurement systems: both dc voltage dividers and DC-CTs. Circuit design and thermal flow design were carried out to clarify and minimize their effects on the accuracy and responsivity. The validity of the established design was demonstrated by the actual-product tests; temperature rise of each components fell below the allowable value; inner components of dc filter withstood dc −1.2 MV; each voltage divider accurately measured the voltage during the dc −1.2 MV withstand voltage test; the voltage dividers and the DCCTs were adequate to the requirements of responsivity (3.3 μs, −3 dB). C⃝ 2018 Wiley Periodicals, Inc. Electr Eng Jpn, 204(3): 41-52, 2018; Published online in Wiley Online Library (wileyonlinelibrary.com).

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Traceability and Characterization of a 1000 kV HVDC Reference Divider

Cited by 10 publications

References 7 publications

Performance of a Modular Wideband HVDC Reference Divider for Voltages up to 1000 kV

Performance of a Modular Wideband HVDC Reference Divider for Voltages up to 1000 kV

Performance of a modular wideband 1000 kV HVDC reference divider

Development of –1 MV DC Filter and High‐Voltage DC Measurement Systems for ITER NBI

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