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Test method for arc protection device based on real-time digital simulation system

A real-time digital simulation and protection device technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as inability to guarantee, cannot truly simulate power system fault phenomena, etc., to achieve strong customization, rich test items, test The real effect of the environment

Inactive Publication Date: 2017-04-19
NANJING NARI GROUP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This test method cannot truly simulate the fault phenomenon of the power system. The fault current does not contain transient components, and the arc light intensity generated during the fault is constant. In summary, this test method is consistent with the real situation of the power system fault site. Inconsistent, therefore, after using this test method to test and pass the arc protection device, it does not guarantee that the arc protection device can operate reliably during field operation

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  • Test method for arc protection device based on real-time digital simulation system
  • Test method for arc protection device based on real-time digital simulation system

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] figure 1 It is the system connection diagram of the test method of the arc protection device based on the real-time digital simulation system provided by the present invention, and the details are as follows:

[0037] The real-time digital simulation system is the core test device of the test method of the present invention, and its main function is to simulate the on-site operating environment of the arc protection device. In...

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Abstract

The invention discloses an arc protection device based on a real-time digital simulation system and a test method thereof. A closed-loop environment which tests the arc protection device and is based on the real-time digital simulation system is constructed. In the simulation environment, a mathematical model which is exactly the same as a power primary system network is created according to the power primary system network at a protection installation site. The test method is highly targeted and customized, and has a real test environment. The real-time digital simulation system is used as a digital movable mold test tool, and the output electrical quantity contains transient component. The waveform is closer to the waveform of a real fault in a power grid. Various types of short circuit faults can be simulated. The arc protection device is tested. The test method can be used to truly simulate the on-site operating environment of the arc protection device. The operation reliability of the arc protection device after on-site operating can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of power system protection device testing, in particular to a testing method for an arc protection device using a real-time digital simulation system. Background technique [0002] Gases are normally insulating, and once arcing occurs, the gas becomes an electrical conductor. When the gas atoms are subjected to the action of large external energy, so that the electrons may break away from their nuclei and become free electrons, the gas is in a charged state, and this process is called gas ionization. The voltage and current of the arc formed when a gas is ionized varies greatly depending on the impedance of the source, the spacing of the conductors, and the material composition of the environment. [0003] In the daily production of the power system, the damage of circuit components, insulation damage, operation errors, circuit overvoltage, short-circuit faults and other phenomena will produce arcs. The arc...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 杨洪涛于跃海盛立健杨佳韦芬卿付磊徐智晶蔡小辰
Owner NANJING NARI GROUP CORP
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