A calibration comparison method for ultraviolet imager

An ultraviolet imaging and comparison technology, which is applied in the direction of using optical methods for testing, instruments, measuring devices, etc., can solve problems such as verification and comparison of ultraviolet imagers

Active Publication Date: 2021-05-11
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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  • Abstract
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Problems solved by technology

[0003] The invention provides a verification and comparison method of an ultraviolet imager, which solves the technical problem of how to effectively verify and compare the ultraviolet imager

Method used

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  • A calibration comparison method for ultraviolet imager

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Embodiment Construction

[0019] The present invention is described in detail below in conjunction with accompanying drawing:

[0020] A calibration comparison circuit for an ultraviolet imager, including a 380-volt power supply system 1, a variable frequency power supply that converts a three-phase power supply into a frequency-adjustable single-phase power supply 3, an excitation transformer without partial discharge 4, a reactor 5, and a Halo wire 8, coupling capacitor 7, detection impedance 12, voltage divider 11, partial discharge tester 14 and ultraviolet imager 16, 380 volt power supply system 1 is connected together with the input end of variable frequency power supply 3 through high-voltage cable 2, excitation The output end of the transformer 4 is connected together with the low-voltage end of the reactor 5 through the pressure line 6, the coupling capacitor 7 is connected in parallel with the detection impedance 12 at both ends of the voltage divider 11, and the high-voltage end of the reacto...

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Abstract

The invention discloses a verification and comparison method for an ultraviolet imager, which solves the problem of how to effectively verify and compare the ultraviolet imager. The 380-volt power supply system (1) is connected to the input end of the variable frequency power supply (3) through a high-voltage cable (2), and the output end of the excitation transformer (4) is connected to the low-voltage end of the reactor (5) through a pressure line (6), The high-voltage end of the reactor (5) is connected to the high-voltage end of the voltage divider (11) through the non-corona wire (8), the high-voltage end of the excitation transformer (4) without partial discharge, and the ground end of the voltage divider (11). and the ground terminal of the detection impedance (12) are connected to the ground terminal (10) through the grounding shield wire (9); a micro-break burr point (15) is arranged on the non-corona wire (8), and the coaxial cable (13) ) is connected to the input terminal of the partial discharge tester (14). Realize the network access detection of the UV imager of the charged detection instrument.

Description

technical field [0001] The invention relates to an inspection and comparison circuit of charged detection equipment, in particular to a circuit and a verification and comparison method for an ultraviolet imager for real-time detection of corona phenomenon generated by partial discharge of charged equipment. Background technique [0002] Ultraviolet imager is one of the main equipment for live detection of power grid equipment. It is generally used to detect the corona phenomenon caused by partial discharge of live equipment in real time, so as to promptly remind operation and maintenance personnel to carry out condition maintenance of live equipment; ultraviolet imager is expensive and the product The quality is uneven; at present, the power grid operation department does not have a verification method for the ultraviolet imager, and cannot effectively verify and compare its detection performance. It is urgent to develop a method that can compare the ultraviolet imager The c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00G01R31/12
CPCG01R31/1218G01R35/00G01R35/005
Inventor 刘宏王伟梁基重俞华胡帆李国栋牛曙
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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