KR950012956A - Motor Protection Relay - Google Patents

Motor Protection Relay Download PDF

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Publication number
KR950012956A
KR950012956A KR1019930021343A KR930021343A KR950012956A KR 950012956 A KR950012956 A KR 950012956A KR 1019930021343 A KR1019930021343 A KR 1019930021343A KR 930021343 A KR930021343 A KR 930021343A KR 950012956 A KR950012956 A KR 950012956A
Authority
KR
South Korea
Prior art keywords
phase
unit
microprocessor
detection unit
voltage
Prior art date
Application number
KR1019930021343A
Other languages
Korean (ko)
Other versions
KR0157861B1 (en
Inventor
박장수
Original Assignee
김회수
금성기전 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김회수, 금성기전 주식회사 filed Critical 김회수
Priority to KR1019930021343A priority Critical patent/KR0157861B1/en
Publication of KR950012956A publication Critical patent/KR950012956A/en
Application granted granted Critical
Publication of KR0157861B1 publication Critical patent/KR0157861B1/en

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Abstract

본 발명은 전동기 보호계전기에 관한 것으로, 종래에는 동작오차도 크고 동작전류의 표시도 하지 못하는등 사용상의 문제점이 있었다. 따라서 종래의 문제점을 해결하기 위하여 본 발명은 마이크로프로세서를 이용하여 동작시간과 동작전류의 설정을 마음대로 설정할 수 있고, 동작전류를 수치적으로 표현이 가능하여 과부하보호, 결상 및 역상 등을 검출하는 방식을 소프트웨어적으로 처리하여 보호기능을 구현하는데 적당하도록 한 효과가 있다.The present invention relates to a motor protection relay, conventionally has a problem in use, such as a large operating error and not display the operating current. Therefore, in order to solve the conventional problems, the present invention can set the operating time and the operating current at will using a microprocessor at will, and can express the operating current numerically to detect overload protection, phase loss and reverse phase. The effect is that the software is processed to make it suitable for implementing the protection function.

Description

전동기 보호계전기Motor Protection Relay

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명의 전동기 보호계전기 구성도.2 is a configuration diagram of a motor protection relay of the present invention.

Claims (1)

R상과 T상의 전류를 검출하여 과부하, 단락 및 결상상태를 검출하는 상 상태검출부(11)와, 3상의 전압을 검출하고 이 검출된 전압을 기준전압과 비교하여 역상상태를 체크하는 역상검출부(12)와, 회로전체의 동작을 위한 전원을 공급하는 전원공급부(13)와, 상기 전원공급부(13)로 부터 전원이 공급됨에 따라 상기 상 상태검출부(11)와 역상검출부(12)의 출력을 입력받아 그 출력에 대한 처리를 행하는 마이크로프로세서(14)와, 상기 마이크로프로세서(14)에서 필요한 정정데이타를 저장하는 정정데이타 저장부(15)와, 사용자의 정정에 따라 정정 가능하도록 한 정정데이타 설정부(16)와, 회로의 동작상태를 엘이디(LED)로서 알려주는 동작표시부(17)와, 상기 마이크로프로세서(14)에서 고자을 판단하여 출력신호를 주면 보조릴레이를 구동하여 외부에 차단신호 및 경보신호를 출력하도록 한 보조릴레이 구동부(18)로 구성된 전동기 보호계전기.Phase state detection unit 11 which detects currents of R phase and T phase to detect overload, short circuit and phase loss state, and reverse phase detection unit which detects phase voltage by detecting the voltage of three phases and comparing the detected voltage with reference voltage ( 12), a power supply unit 13 for supplying power for the operation of the entire circuit, and outputs of the phase state detection unit 11 and the reverse phase detection unit 12 as power is supplied from the power supply unit 13. A microprocessor 14 that receives an input and processes the output thereof, a correction data storage unit 15 that stores correction data required by the microprocessor 14, and correction data setting that can be corrected according to a user's correction The unit 16, an operation display unit 17 which informs the operation state of the circuit as an LED, and the microprocessor 14 determine the high frequency and give an output signal to drive the auxiliary relay to externally cut off the signal and the light. Motor protective relay consisting of a relay signal to the secondary drive unit 18 to the output. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930021343A 1993-10-14 1993-10-14 Motor protection relay KR0157861B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930021343A KR0157861B1 (en) 1993-10-14 1993-10-14 Motor protection relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930021343A KR0157861B1 (en) 1993-10-14 1993-10-14 Motor protection relay

Publications (2)

Publication Number Publication Date
KR950012956A true KR950012956A (en) 1995-05-17
KR0157861B1 KR0157861B1 (en) 1998-12-15

Family

ID=19365831

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930021343A KR0157861B1 (en) 1993-10-14 1993-10-14 Motor protection relay

Country Status (1)

Country Link
KR (1) KR0157861B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017739B1 (en) * 2008-12-31 2011-02-28 엘에스산전 주식회사 Motor protection relay and control method using the same

Also Published As

Publication number Publication date
KR0157861B1 (en) 1998-12-15

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