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Ultrahigh-voltage direct current transformer calibrating system

A UHV DC and transformer calibration technology, which is applied in the field of UHV DC transformer calibration systems, can solve the problems that UHV DC transformers are difficult to meet accurate calibration.

Inactive Publication Date: 2019-03-22
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 calibration methods and devices for UHV DC transformers are difficult to meet the requirements of accurate calibration

Method used

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  • Ultrahigh-voltage direct current transformer calibrating system
  • Ultrahigh-voltage direct current transformer calibrating system
  • Ultrahigh-voltage direct current transformer calibrating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment one: as attached figure 1 And attached figure 2 As shown, a UHV DC transformer calibration system includes UHV DC transformer to be calibrated, UHV standard DC current transformer / UHV standard DC voltage transformer, UHV DC current generator / UHV DC voltage generator and DC calibrator.

[0031] The maximum output voltage of the UHV DC transformer to be verified in this embodiment is not less than 1300kV, the designed rated output current is not less than 15mA, the output voltage stability is better than 0.03% / 30s, and the ripple coefficient is not higher than 0.1% , The continuous working time is not less than 30min.

[0032] UHV standard DC current transformer / UHV standard DC voltage transformer (also known as UHV standard voltage divider) includes the measuring resistor body (i.e. voltage dividing resistor layer), and the shielding set on the periphery of the measuring electrical group body resistive layer. Usually the measuring resistor body and the sh...

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PUM

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Abstract

The invention relates to an ultrahigh-voltage direct current transformer calibrating system. The ultrahigh-voltage direct current transformer calibrating system comprises an ultrahigh-voltage direct current transformer to be calibrated, an ultrahigh-voltage standard direct current current / voltage transformer, an ultrahigh-voltage direct current current / voltage generator for providing calibrating direct current current / voltage for the ultrahigh-voltage direct current transformer to be calibrated and the ultrahigh-voltage standard direct current current / voltage transformer, and a direct currentcalibrator for measuring and calibrating the ultrahigh-voltage direct current transformer to be calibrated and the ultrahigh-voltage standard direct current current / voltage transformer and outputtingcalibrating results. The ultrahigh-voltage direct current transformer calibrating system can conveniently achieve all operations of ultrahigh-voltage direct current transformer calibration and is applicable of laboratory testing and field testing.

Description

technical field [0001] The invention belongs to the field of electrical test equipment, and in particular relates to a system 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 purpose ...

Claims

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Application Information

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IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 姜杏辉童彬赵永刚
Owner SUZHOU HUADIAN ELECTRIC CO LTD
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