• Title/Summary/Keyword: Test Equipment

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Test equipment of traction motor for electric train (전기철도 차량용 견인전동기 시험설비)

  • Jang, Dong-Uk;Park, Hyun-June;Han, Moon-Seob
    • Proceedings of the KIEE Conference
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    • 2006.07b
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    • pp.1103-1104
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    • 2006
  • This paper is described about the test equipment of fraction motor for electric train. This test equipment was able to perform the performance test of traction motor which was operated in Korea. We explain performance and function of test equipment. In order to check the performance of test equipment, we conducted the performance test with 200 kW and 1100 kW traction motor.

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The study for function and operation of the excitation equipment for short circuit generator (단락발전기 용 여자장치의 조작과 기능에 대한 고찰)

  • Kim, Sun-Koo
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.735-736
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    • 2008
  • There are many equipments for the Short Circuit Test, for example Short Circuit Generator, Induction Motor, Sequence Timer, CLR, Back Up Breaker, Making Switch and Excitation Equipment etc. Gradually an allowable tolerance of the short circuit test voltage is become smaller by the standards for short circuit test. The excitation equipment of short circuit generator is very important for test voltage is adjusted by the excitation equipment. Especially the excitation equipment must be possessed character of exactitude, durability and inalterability because some times around 10,000 times opening and closing short circuit test is requested by clint, which must be done within one minute. The purpose of this study for function and operation of the excitation equipment which rated DC voltage is 1,000V, rated DC current is 300A, rated out put is 30kW and type is YNEX 97S-441/609, is to help operation of short circuit generator.

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Development of Integrated Test Equipment for Airborne SAR System and Control Unit (항공탑재 SAR 시스템 및 통제장치 시험을 위한 통합시험장비 개발)

  • Lee, Hyon-Ik;Hwang, Tae-Jin
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.41 no.9
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    • pp.747-754
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    • 2013
  • This paper describes SCTE(System and Control unit Test Equipment) as an integrated test equipment for airborne SAR system and control unit. SCTE enhances reusability of test equipment by modular design for required functions and strengthens automatic testing and test convenience by providing functions such as script-based testing function and report generation function. Also, it includes a navigation data simulator which can simulate various flight conditions. In this paper, we details SCTE requirements, H/W and S/W design, implementation, and test results with control unit and SAR system.

Seismic behavior of simplified electrical cabinet model considering cast-in-place anchor in uncracked and cracked concretes

  • Bub-Gyu Jeon;Sung-Wan Kim;Sung-Jin Chang;Dong-Uk Park;Hong-Pyo Lee
    • Nuclear Engineering and Technology
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    • v.55 no.11
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    • pp.4252-4265
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    • 2023
  • In the case of nuclear power plants near end of their design life, a reassessment of the performance of safetyrelated equipment may be necessary to determine whether to shut down or extend the operation of the power plant. Therefore, it is necessary to evaluate the level of performance decline due to degradation. Electrical cabinets, including MCC and switchgear, are representative safety-related equipment. Several studies have assessed the degradation and seismic performance of nuclear power plant equipment. Most of those researches are limited to individual components due to the size of safety-related equipment and test equipment. However, only a few studies assessed the degradation performance of electrical cabinets. The equipment of various nuclear power plants is anchored to concrete foundations, and crack in concrete foundations is one of the most representative of degradation that could be visually confirmed. However, it is difficult to find a study for analysis through testing the effect of cracks in concrete foundations on the response of electrical cabinet internal equipment fixed by anchors. In this study, using a simple cabinet model considering cast-in-place anchor in uncracked and cracked concretes, a tri-axial shaking table tests were performed and the seismic behavior were observed.

A Study on Endurance Improvement of Electrical Equipment according to Vibration Environment (진동환경에 따른 전기설비의 내구성 향상에 관한 연구)

  • Park, Keun-Seok;Shim, Jae-Myung;Lee, Dae-Dong
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.63 no.8
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    • pp.1146-1151
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    • 2014
  • The equipment in ships and railway vehicles are continuously exposed to vibration, and its durability is very important. Therefore, consumers require the verification of the performance of equipment via standardized tests under the given environments to improve and stabilize the performance. In this study, a durability improvement and stabilization plan was proposed, which included the exploratory vibration test, variable frequency test and endurance test for the electrical equipment according to the vibration environment. It is expected that this study results will improve the technological competitive power of the ship and railway-related manufacturers and contribute to the equipment development and export.

Development of an Unmanned Test System Based on Forklift for Mast Operation Durability (지게차 마스트 작동내구를 위한 실차 기반 무인시험장치 개발)

  • Cho, Jae-Hong;Na, Seon-Jun;Kim, Min-Seok;Park, Myeong-Kwan
    • Journal of Drive and Control
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    • v.19 no.4
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    • pp.70-76
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    • 2022
  • In this paper, we develops an unmanned test system for the purpose of realizing an actual forklift-based test-bed for the operation durability of the forklift mast. First, two robot actuators were applied to the lever to replace lever manipulation of the operator. For detecting the height of the fork and the tilt angle of the mast, the laser displacement sensor and the inclinometer were installed to the forklift. Next, the embedded control system was used to control the robot actuator with reference to test mode. Experimental evaluation verified that developed test system was effective and practical for the viewpoint of the repeatability of the test mode.

Design and Performance Test of Cooling-Air Test Equipment for the Environmental Control System in Aircraft (항공기 ECS 냉각공기 시험장비 설계 및 성능 시험)

  • So, Jae-uk;Kim, Jin-sung;Kim, Jae-woo;Kim, Jin-bok
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.49 no.2
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    • pp.147-154
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    • 2021
  • In this paper, the configuration and design of the test equipment are presented to examine the impact of rapid temperature change in cooling-air that may occur during the operation of the fixed wing aircraft Environmental Control System (ECS) on avionic electronic equipment. At the start of the ECS, the temperature of the air supplied by the aircraft ECS may be increased to 5.0℃ per second. In order to ensure operating of the avionic electronic equipment that is mounted on the aircraft and receives cooling-air from the ECS, testing equipment that can implement the cooling-air characteristic test environment is required. During design of test equipment was verified cooling-air rapid rate of temperature change by performing a thermal/flow analysis, performance of the test equipment implemented was verified by applying an avionic electronic equipment.

Electromagnetic Interference Test Result Analysis of Integral Reactor Digital I&C System (일체형 원자로 디지털 계측제어계통 전자파 장애 시험결과 분석)

  • Lee, Joon-Koo;Sohn, Kwang-Young;Park, Hee-Seok;Park, Heui-Yun;Koo, In-Soo
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2003.11a
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    • pp.213-218
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    • 2003
  • Because of the development of digital technology, modern digital instrumentation & control systems are being innovativly developed in industrial plants. Whereas, many analog systems are still being used in nuclear plants, because of the demerits of digital equipment. As known, the demerits of digital equipment are the uncertainty and weaknesses in ambient environments such as smoke & electromagnetic interference In an Integral Reactor, a digital I&C system will be composed of microprocessor, memory and network card. Designers will apply new technique for digital equipment. Thus, it is important for digital I&C systems to operate according to designed functions & performance in the ambient environments during a life cycle. Digital I&C systems should have tolerance in such environments and environment qualification should be concluded To acquire electromagnetic interference qualification of digital equipment, this paper suggests an EMI test requirement. Designers should consider the electromagnetic compatibility and test digital equipment according to each test procedure. This paper involves an EMI test requirement and the results analysis of EUT(Equipment Under Test). Test result analysis will be used as electromagnetic compatibility design guides for Integral Reactor I&C systems.

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Development of Automatic Test Equipment for Hardware Verification of Aircraft Stores Management Computer (항공기용 무장관리컴퓨터 하드웨어 검증을 위한 자동시험 장비 개발)

  • Oh, Soo-heon;Jeon, Eun-seon;Kim, Kap-dong;Park, Jun-hyun
    • Journal of Advanced Navigation Technology
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    • v.25 no.5
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    • pp.377-383
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    • 2021
  • In this paper, we describe the case of automatic test equipment development for hardware verification of stores management computer mounted on aircraft. Recently, the required functions of aircraft have been diversified and the related technologies of avionics equipment have developed, and the types and quantity of interfaces required for avionics equipment have increased. In addition to the existing old stores, the stores management computer also needs to control the interface in large quantities as the requirements for the new stores are added. For this reason, the time and manpower required for the inspection of avionic equipment are also increasing, and if the test process of avionic equipment can be automated and unmanned, more efficient inspection system operation will be possible. Therefore, this paper introduces the case of designing test software and test scenario to automate the structural design contents and verification process of test equipment required for the verification of hardware function of stores management computer.

A Study on The Improvement of Weapon System Test and Evaluation - Focusing on the weapon system in the research development stage - (연구개발무기체계 시험평가 발전방안에 관한 연구)

  • Lee, Kang-Un;Boo, Joon-Hyo
    • Journal of National Security and Military Science
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    • s.8
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    • pp.383-420
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    • 2010
  • This article is focusing on the improvement of weapon system test & evaluation, aimed at the weapon system in the research development stage. This article suggests improvement directions in three aspects(organization and system, skilled manpower and technology, test facilities of weapon system test & evaluation) as follows. 1) Weapon system test & evaluation organization and system a. Establishment of comprehensive test & evaluation system b. Making regulation for comprehensive test infrastructure management. c. Standardization of test & evaluation process, which can be used in special subject to army, navy and air force. 2) Skilled manpower and technology of weapon system test & evaluation a. Training & education, management of test & evaluation experts. b. Establishment of skill management system of test & evaluation. 3) Test facilities of weapon system test & evaluation a. Establishment of comprehensive improvement direction of test & evaluation installation and equipment. b. Consideration of counter measures to prevent overlapping investment, and to use the test & evaluation resources efficiently. c. Establishment of organic network for the effective use of test & evaluation installation and equipment. d. Establishment of detailed cooperation plan for the commonage of test & evaluation facility and equipment.

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