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A portable pulse large current measuring device suitable for substation site

A measuring device and high-current technology, applied in the direction of using digital measurement technology for measurement, etc., can solve the problems of not being suitable for on-site use, low measurement accuracy, and inability to self-calibrate, etc., to achieve light weight, improve measurement accuracy, and strong mobility effect

Active Publication Date: 2017-11-10
宜昌光源电业有限责任公司
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Problems solved by technology

[0005] Aiming at the problems of low measurement accuracy, incapable of self-calibration, and unsuitable for on-site use in the current pulse high-current measurement device, the present invention provides a portable pulse high-current measurement device suitable for the substation site, which is highly mobile on site and can be Measure the current at the position that needs to be measured at any time without interrupting the operation of the device under test, with high accuracy

Method used

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  • A portable pulse large current measuring device suitable for substation site
  • A portable pulse large current measuring device suitable for substation site
  • A portable pulse large current measuring device suitable for substation site

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Embodiment Construction

[0022] Such as Figure 1~Figure 3 As shown, a portable pulse high current measuring device suitable for substation site is composed of pulse high current sensor, digital processing unit 3, photoelectric transmission unit 4, terminal processing unit 5 and metal shielding device 9 and other parts. The pulse high current sensor is connected to the digital processing unit 3 through the shielded wire 6 , the digital processing unit 3 is connected to the photoelectric transmission unit 4 through the optical fiber 7 , and the photoelectric transmission unit 4 transmits the signal to the terminal processing unit 5 through the USB transmission line 8 .

[0023] In the present invention, the Rogowski coil is designed in the form of an opening, which can be conveniently connected to or withdrawn from the measured conductor without disconnecting the measured conductor, thereby realizing accurate pulse large current measurement. In order to ensure the accuracy of measurement and reduce the...

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Abstract

A portable pulse large current measuring device suitable for substation sites, including a pulse high current sensor, the pulse high current sensor is connected to a digital processing unit through a shielded wire, the digital processing unit outputs an optical signal, and is connected to a photoelectric transmission unit through an optical fiber; The transmission unit is close to the terminal processing unit, its input signal is an optical signal, and its output signal is an electrical signal, and the electrical signal is connected to the terminal processing unit through a USB transmission line. The invention is a portable pulse large current measuring device suitable for the site of a substation. The site has strong mobility, and the current measurement can be performed on the position to be measured at any time without interrupting the operation of the device under test, and the accuracy is high.

Description

technical field [0001] The invention is a portable pulse large current measuring device suitable for substation sites, which is used for real-time measurement of high-frequency high-frequency currents such as the discharge current of a pulse strong magnetic field device and the discharge current of lightning impulse. Background technique [0002] In order to test the performance of various equipment in the power system under high voltage and high current, especially the performance of equipment such as transformers and circuit breakers under lightning impulse voltage and impulse current, it is necessary to conduct impulse voltage and impulse current tests on these equipment, In order to test the insulation performance, heat resistance performance and mechanical performance of the equipment to meet the specified requirements. In the field of pulsed strong magnetic field, in order to generate a magnetic field with a strength of tens of tesla, it is also necessary to generate a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25
Inventor 黄悦华李振华闫苏红赵爽李秋惠李振兴徐艳春
Owner 宜昌光源电业有限责任公司
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