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RISS 인기검색어
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- 저자 : 이병설 ( Byung-seol Lee ) (검색결과 6 건)
- 무료
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저압용 설비에 적용된 Plug-In MCCB의 온도 특성에 관한 연구
이병설(Lee, Byung-Seol),최충석(Choi, Chung-Seog) 한국화재소방학회 2013 한국화재소방학회 학술대회 논문집 Vol.2013 No.추계
개발된 Plug-In MCCB를 저압용 부스바에 설치하여 온도 특성을 분석한 결과 모든 상(phase)에서 기준 범위보다 적은 값을 나타냈고, 가장 높게 측정된 곳의 온도 역시 <TEX>$13.7^{\circ}C$</TEX> 이었다. 또한 단시간 전류 시험 및 기계적 동작 시험 후의 온도 상승 시험에서도 <TEX>$18.5^{\circ}C$</TEX>로 측정되어 모든 부분의 특성이 양호한 것을 알 수 있다.
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3상 3선식 Plug-In MCCB의 인장력 및 접촉저항 평가에 관한 연구
이병설 ( Byung Seol Lee ),최충석 ( Chung Seong Choi ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.4
The purpose of this paper is to evaluate the performance of a Plug-In MCCB developed for rapid power supply restoration when the MCCB is installed in a power system and to verify its reliability. Since the developed 3 Φ 3 W Plug-In MCCB can be installed on and removed from a bus bar by one touch using a plug housed at the rear, it can be replaced in a short period of time. Therefore, it can quickly respond to the normalization of a power system. When the Plug-In MCCBB is installed on a bus bar, the resistance between each phase and plug was measured to be 0.46 mΩ in average. When the Plug-In MCCB is installed, the tension in the vertical direction was measured to be 112.78 N in average, which is greater than the tension of 50 N specified in the related regulation. The withstanding voltage tests performed 5 times repeatedly by applying 6 kV to the developed Plug-In MCCB for 60 seconds shows good withstanding voltage characteristics. In addition, both the general waterproof test using a water injection method and the insulation resistance analysis using a Mega meter showed good waterproof and insulation characteristics.
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스마트 분전반 제작을 위한 작업 공정도 개발에 관한 연구
이병설 ( Byung-seol Lee ),최충석 ( Chung-seog Choi ) 한국안전학회 2017 한국안전학회지 Vol.32 No.3
This study presented the strength of the materials and parts for smart distribution board fabrication, and developed a work operation process chart for smart distribution board fabrication. This work operation process chart for smart distribution board fabrication complied with SPS-KEMC regulations, and the applicable range and object are less than 1,000 V and 1,000 Hz for the AC distribution board and less than 1,500 V for the DC distribution board. The power supply is 3 phase 4 wires (3Φ 4W), divided into a single phase circuit and a 3 phase circuit. In addition, the circuit was configured so that the leakage current flowing through the distribution line of the load could be monitored in real time by using the sensor module installed at the rear end of the circuit breaker. Therefore, the administrator can easily find the risk factor of the load since engineer can check the leakage current of each distribution line. In addition, if a leakage current greater than standard value flows, it is possible to generate an alarm against a short circuit and cut off the leakage current. The work operation process chart for the smart distribution board fabrication consists of the following steps: raw and subsidiary materials, sheet metal work, tube making, welding, painting, busbar fabrication, assembly and wiring, product inspection, shipment, etc. Moreover, symbols, △, ▽, O, ⇒, etc. were used according to the type of work and work progress so that workers can easily understand the progress of the work.
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배전반에 설치된 Plug-In MCCB의 접촉 저항에 관한 연구
이병설(Lee, Byung-Seol),최충석(Choi, Chung-Seog) 한국화재소방학회 2013 한국화재소방학회 학술대회 논문집 Vol.2013 No.춘계
Plug-In MCCB는 전원부의 연결 단자가 없으며, 차단기 후면에 설치된 하우징 형태(housing type)의 플러그 유닛으로 부스바에 원터치(one touch) 설치 및 분리 등이 가능하다. 그러므로 차단기의 교체 시간이 짧고, 전원 복구가 신속하여 설비의 효율적 운용에 기여할 수 있다. 차단기의 후면에 있는 플러그 유닛이 동 부스바에 연결되었을 때 저항 특성을 초저항측정기(Resistance Tester)로 분석하였다. 3상 3선식 플러그인 배선용차단기를 동 부스바에 설치했을 때 R-phase과 플러그 단자 사이의 접촉 저항은 <TEX>$0.51m{\Omega}$</TEX>으로 확인되었다. 즉, 개발된 Plug-In MCCB를 이용하여 부스바에 설치할 때 접촉(속)부의 전기적 특성이 우수한 것을 확인할 수 있었다.
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규격화된 분전반 제작을 위한 표준작업절차(SOP)의 공정 개발
고완수 ( Wan-su Ko ),이병설 ( Byung-seol Lee ),최충석 ( Chung-seog Choi ) 한국안전학회(구 한국산업안전학회) 2018 한국안전학회지 Vol.33 No.5
The purpose of this study is to develop a SOP (Standard Operating Procedure) for a distribution board that can monitor the leakage current of a load distribution line in real time. The developed distribution board was fabricated by applying IEC 61439-1. It consists of the distribution board and an alarm device. The work process for making the distribution board was compliant with the KEMC (Korea Electrical Manufacturers Cooperative) regulations. And the AC distribution board range is 1,000 V. In addition, the voltage in DC is less than 1500 V. The distribution board receives a 3-phases and 4-wires power supply system and can supply power to the load of a maximum of 32 single or three phase distribution circuits. Also, leakage current measured on the power distribution board was used by sensors installed. The SOP of the developed distribution board consists of the installation standards for the short circuit alarm device and sensor, the surge protection device, switches and indication lamps, and other devices. The operation procedure was prepared so that each manufacturing step of the distribution board must be confirmed by the persons in charge of preparation, production, quality control and approval before moving forward to the next step.
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3상 4선식 Plug-In MCCB의 온도 특성 및 단시간 전류 성능에 관한 연구
최충석 ( Chung Seog Choi ),이병설 ( Byung Seol Lee ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.7
This study performed test on the temperature characteristics and short-time current performance of a Plug-In MCCB developed for rapid replacement of an MCCB. A temperature rise test for the developed Plug-In MCCB showed that the maximum temperature rise was 13.7℃. The temperature rise analysis performed after the short-time current performance and mechanical operation tests found that the maximum temperature rise was 18.5℃ and that all parts were safe. After the short-time current performance test was performed under conditions of a test voltage of 2.5 kV and a test period of a time of 60 seconds for the neutral wire, the Plug-In MCCB was fond to be in a good state. This study performed the tests on the developed Plug-In MCCB by inserting into, and taking out of, a bus bar 1,000 times and found that the Plug-In MCCB experienced no physical deformation and showed good electrical characteristics. The evaluation on the insulation performance of the developed Plug-In MCCB between the circuit and ground and between the phases found that the insulation resistance was more than 500 MΩ. In addition, the result of the structural test on the Plug-In MCCB showed that it satisfied all related requirements.
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