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Calibrating platform of ultra high voltage direct current mutual inductor

A UHV DC and transformer calibration technology, which is applied in the platform field for UHV DC transformer calibration, can solve the problem that the simple calibration method of UHV DC transformer cannot satisfy accurate calibration and the difficulty of building test equipment And other issues

Pending Publication Date: 2019-02-01
SUZHOU HUADIAN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the existing simple calibration methods for UHV DC transformers are difficult to meet the requirements of accurate calibration
However, if large and complex test equipment is used, it will also face greater difficulties in the construction of test equipment.

Method used

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  • Calibrating platform of ultra high voltage direct current mutual inductor
  • Calibrating platform of ultra high voltage direct current mutual inductor
  • Calibrating platform of ultra high voltage direct current mutual inductor

Examples

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Embodiment 1

[0028] Embodiment 1: The maximum output voltage of the UHV DC transformer to be verified in this embodiment is not lower than 1300kV, the designed rated output current is not lower than 15mA, the output voltage stability is better than 0.03% / 30s, and the ripple coefficient is not lower than Higher than 0.1%, the continuous working time is not less than 30min.

[0029] A DC transformer calibration platform for calibrating UHV DC transformers comprises a UHV DC transformer calibration system, a mechanical device and a power supply device.

[0030] The UHV DC transformer calibration system is used to connect with the UHV DC transformer to be calibrated to form a calibration circuit for calibration. as attached figure 1 And attached figure 2 As shown, the UHV DC transformer calibration system includes UHV standard DC current transformer / UHV standard DC voltage transformer, UHV DC current generator / UHV DC voltage generator and DC calibrator.

[0031] UHV standard DC current tra...

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Abstract

The invention relates to a calibrating platform of an ultra high voltage direct current mutual inductor. The calibrating platform comprises a calibrating system of the ultra high voltage direct current mutual inductor, a mechanical device and a power supply device, wherein the calibrating system of the ultra high voltage direct current mutual inductor is used for being connected with the ultra high voltage direct current mutual inductor to be calibrated to form a calibrating loop; the mechanical device is used for transporting the calibrating system of the ultra high voltage direct current mutual inductor and building the calibrating loop; and the power supply device is arranged on the mechanical device and used for supplying power for the calibrating system of the ultra high voltage direct current mutual inductor. The mechanical device comprises a bottom frame, two voltage doubling drums, a driving system and grading rings, wherein the bottom frame is hinged to the bottoms of the voltage doubling drums, and the driving system is used for driving the voltage doubling drums to rotate relative to the bottom frame so that the voltage doubling drums can switch between the vertical state and the folded state; the grading rings are arranged at the tops of the voltage doubling drums; and part of the calibrating system of the ultra high voltage direct current mutual inductor is arranged in the voltage doubling drums, and the other part of the calibrating system of the ultra high voltage direct current mutual inductor is connected with the voltage doubling drums. The calibrating platform of the ultra high voltage direct current mutual inductor adopts integrated platform design, can conveniently meet all work for calibrating the ultra high voltage direct current mutual inductor,and is suitable for test rooms and field calibration.

Description

technical field [0001] The invention belongs to the field of electrical test equipment, and in particular relates to a platform for calibrating UHV DC transformers. Background technique [0002] The DC transformer is an important primary device in the UHV DC transmission system, which provides accurate and reliable measurement information for the control and protection of the system. Its operation reliability and measurement accuracy are directly related to the safe and stable operation of the DC transmission system. At the same time, the DC transformer is also an important sensing device for the control of the working state of the rectification and inverter. By measuring the electric energy of the DC side, the energy efficiency of the rectification and inverter process can be calculated, so as to judge whether the operating status and parameters of the DC converter equipment have reached Design requirements, and adjust operating parameters to optimize and achieve the purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 姜杏辉赵永刚童彬
Owner SUZHOU HUADIAN ELECTRIC CO LTD
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