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1. WO2020111510 - SWITCHGEAR MONITORING APPARATUS USING ACOUSTIC SIGNALS

Publication Number WO/2020/111510
Publication Date 04.06.2020
International Application No. PCT/KR2019/013575
International Filing Date 16.10.2019
IPC
H02B 13/025 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
13Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
02with metal casing
025Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
H02B 3/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
3Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
G06F 17/14 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
10Complex mathematical operations
14Fourier, Walsh or analogous domain transformations
CPC
G06F 17/14
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
10Complex mathematical operations
14Fourier, Walsh or analogous domain transformations ; , e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
H02B 13/025
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
13Arrangements of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
02with metal casing
025Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
H02B 3/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
3Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Applicants
  • (주)에스엔 SN CO., LTD [KR]/[KR]
Inventors
  • 송수준 SONG, Soo Joon
  • 박종윤 PARK, Jong Yoon
  • 유대성 YOO, Dae Seong
Agents
  • 이원영 LEE, Won Young
Priority Data
10-2018-014720526.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) SWITCHGEAR MONITORING APPARATUS USING ACOUSTIC SIGNALS
(FR) APPAREIL DE SURVEILLANCE D'APPAREILLAGE DE COMMUTATION UTILISANT DES SIGNAUX ACOUSTIQUES
(KO) 음향신호를 이용한 수배전반 모니터링 장치
Abstract
(EN)
The present invention relates to a switchgear monitoring apparatus and, more specifically, to a switchgear monitoring apparatus using acoustic signals. The purpose of the present invention is to provide a contactless switchgear harmonic monitoring apparatus for measuring, in real time, acoustic signals generated from power devices and power systems such as a transformer and a motor inside a switchgear. The present invention can: detect, in a contactless manner, acoustic signals, generated from a power system, through a detection unit provided inside a switchgear, and analyze the detected acoustic signals, extract a signal generated by a harmonic wave from among the analyzed acoustic signals so as to provide the extracted harmonic data to a user, thereby preventing an electrical negligent accident such as a device loss, shorting, grounding, and an electric leakage, which can occur due to sparks during harmonic measurement; and have an effect of measuring a harmonic wave without a CT, a PT sensor, or a power analyzer. In addition, the present invention can provide cumulative data of each extracted degree harmonic wave to the user so as to analyze the cumulative data, thereby using the analyzed cumulative data as data by which countermeasures against the reason for the occurrence of an accident or fault when the accident or fault occurs can be employed, and thus an unusual symptom can be detected and diagnosed in advance.
(FR)
La présente invention concerne un appareil de surveillance d'appareillage de commutation et, plus spécifiquement, un appareil de surveillance d'appareillage de commutation utilisant des signaux acoustiques. L'objectif de la présente invention est de fournir un appareil de surveillance d'harmoniques d'appareillage de commutation sans contact pour mesurer, en temps réel, des signaux acoustiques générés par des dispositifs d'alimentation et des systèmes d'alimentation tels qu'un transformateur et un moteur à l'intérieur d'un appareillage de commutation. La présente invention permet : de détecter, sans contact, des signaux acoustiques, générés par un système d'alimentation, par l'intermédiaire d'une unité de détection placée à l'intérieur d'un appareillage de commutation, et d'analyser les signaux acoustiques détectés, d'extraire un signal généré par une onde harmonique parmi les signaux acoustiques analysés de façon à fournir les données harmoniques extraites à un utilisateur, ce qui permet d'empêcher un accident électrique dû à la négligence tel qu'une perte de dispositif, un court-circuit, une mise à la masse et une fuite électrique, qui peut se produire en raison d'étincelles lors d'une mesure harmonique ; et a pour effet de mesurer une onde harmonique sans CT, capteur PT ou analyseur d'alimentation. De plus, la présente invention permet de fournir des données cumulées de chaque onde harmonique de degré extraite à l'utilisateur de façon à analyser les données cumulées, ce qui permet d'utiliser les données cumulées analysées comme données par lesquelles des contre-mesures contre l'origine de l'apparition d'un accident ou d'un défaut lorsque l'accident ou le défaut se produit peuvent être utilisées, et ainsi un symptôme inhabituel peut être détecté et diagnostiqué à l'avance.
(KO)
본 발명은 수배전반 모니터링 장치에 관한 것으로 보다 상세하게는, 음향신호를 이용한 수배전반 모니터링 장치에 관한 것이다. 본 발명은 수배전반 내부의 변압기, 전동기 같은 전력기기나 전력계통들로부터 발생되는 음향신호를 실시간으로 측정하는 비접촉방식의 수배전반 고조파 모니터링 장치를 제공하는 것을 목적으로 한다. 본 발명은 수배전반 내부에 구비되는 감지유닛을 통해 전력계통에서 발생되는 음향신호를 비접촉방식으로 감지하여 감지된 음향신호를 분석하고, 분석된 음향신호 중 고조파에 의해 발생되는 신호를 추출하여 추출된 고조파 데이터를 사용자에게 제공하는 것에 의해 고조파 측정 시 스파크로 인해 생길 수 있는 기기소손, 단락, 지락, 누전 합선 등과 같은 전기안전사고를 예방할 수 있으며, CT, PT 센서나 전력분석기 없이 고조파를 측정하는 효과를 가질 수 있다. 또한, 본 발명은 추출된 각 차수 고조파에 대한 누적 데이터를 사용자에게 제공하는 것에 의해 누적 데이터를 분석하여 사고 또는 고장 발생 시 발생 원인에 대한 대책을 강구할 수 있는 자료로 활용할 수 있으며, 이에 따라, 이상 징후를 사전에 감지, 진단할 수 있는 효과를 가질 수 있다.
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