The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Aug. 17, 2022
State Grid Hubei Marketing Service Center (Measurement Center), Hubei, CN;
Xin Zheng, Hubei, CN;
Wenjing Yu, Hubei, CN;
Tao Peng, Hubei, CN;
Yi Fang, Hubei, CN;
Ming Lei, Hubei, CN;
Hong Shi, Hubei, CN;
Ben Ma, Hubei, CN;
Li Ding, Hubei, CN;
Wei Wei, Hubei, CN;
Linghua Li, Hubei, CN;
He Yu, Hubei, CN;
Tian Xia, Hubei, CN;
Yingchun Wang, Hubei, CN;
Sike Wang, Hubei, CN;
Dongri Xie, Hubei, CN;
Xin Wang, Hubei, CN;
Bo Pang, Hubei, CN;
Xianjin Rong, Hubei, CN;
Abstract
The present disclosure provides a direct current (DC) transformer error detection apparatus for a pulsating harmonic signal, including a DC and pulsating harmonic current output module and an external detected input module, where the DC and pulsating harmonic current output module outputs a DC and a DC superimposed pulsating harmonic current to an internal sampling circuit and a self-calibrated standard resistor array; and the internal sampling circuit converts the input DC and the input DC superimposed pulsating harmonic current into a voltage signal, and sends the voltage signal to an analog-to-digital (AD) sampling and measurement component through a front-end conditioning circuit and a detected input channel. The DC transformer error detection apparatus can complete self-calibration for measurement of the DC and the pulsating harmonic signal on a test site.