The DRM （dynamic contact resistance measurement） in high voltage circuit breakers is a manner of evaluating the internal ageing condition of the chamber. DRM is similar to static contact resistance measurement testi...The DRM （dynamic contact resistance measurement） in high voltage circuit breakers is a manner of evaluating the internal ageing condition of the chamber. DRM is similar to static contact resistance measurement testing, but instead of measuring a single value when the breaker contacts are closed （static value）, the ohmic resistance is measured at various contact positions, from the beginning of the contact opening until a complete separation of the contacts. The relationship between the contact resistances of the new circuit breaker and the ageing circuit breaker in operation provides subsidy for the evaluation of both the main and arcing contact conditions. This research aims to analyze the correlation between the various levels of degradation of the contacts and the configuration of the DRM curve. This work considers curve samples from new acceleration tests. breaker chamber contacts and different levels of degradation by展开更多
The present paper deals with the development of a modular, flexible and structured block to block approach for the study of regulators by implementing the different blocks on a DSP （digital signal processor）. The pr...The present paper deals with the development of a modular, flexible and structured block to block approach for the study of regulators by implementing the different blocks on a DSP （digital signal processor）. The proposed low-cost approach has been applied and validated by the implementation of an industrial regulator in a real time hardware-in-the-loop simulation of a mixed islanded power network including precise models of the hydraulic system. The studied network is constituted of three different types of electrical power generation systems and a consumer.展开更多
This article focuses on the interpretation of heng dao ＇IN~_ （sometimes translated as ＂the constant dao＂） and its fundamental character in the Laozi. It argues against the prevailing interpretation of dao as an u...This article focuses on the interpretation of heng dao ＇IN~_ （sometimes translated as ＂the constant dao＂） and its fundamental character in the Laozi. It argues against the prevailing interpretation of dao as an unchanging metaphysical substance or reality, and maintains that the fundamental feature of heng dao is both dynamic and eternal. Heng dao is beyond language because of its dynamic character, but the Laozi nevertheless strives to express it in three aspects： 1） its flexibility and adaptability as represented in the metaphor of water; 2） its movement of reversal and return; 3） and in its existential significance as a guide for life. Heng dao can be called the non-objectified dao, which produces law, principle, rule, method, and so on. Looked at in this way, the dynamic character of heng dao can be called non-objective.展开更多
文摘The DRM （dynamic contact resistance measurement） in high voltage circuit breakers is a manner of evaluating the internal ageing condition of the chamber. DRM is similar to static contact resistance measurement testing, but instead of measuring a single value when the breaker contacts are closed （static value）, the ohmic resistance is measured at various contact positions, from the beginning of the contact opening until a complete separation of the contacts. The relationship between the contact resistances of the new circuit breaker and the ageing circuit breaker in operation provides subsidy for the evaluation of both the main and arcing contact conditions. This research aims to analyze the correlation between the various levels of degradation of the contacts and the configuration of the DRM curve. This work considers curve samples from new acceleration tests. breaker chamber contacts and different levels of degradation by
文摘The present paper deals with the development of a modular, flexible and structured block to block approach for the study of regulators by implementing the different blocks on a DSP （digital signal processor）. The proposed low-cost approach has been applied and validated by the implementation of an industrial regulator in a real time hardware-in-the-loop simulation of a mixed islanded power network including precise models of the hydraulic system. The studied network is constituted of three different types of electrical power generation systems and a consumer.
文摘This article focuses on the interpretation of heng dao ＇IN~_ （sometimes translated as ＂the constant dao＂） and its fundamental character in the Laozi. It argues against the prevailing interpretation of dao as an unchanging metaphysical substance or reality, and maintains that the fundamental feature of heng dao is both dynamic and eternal. Heng dao is beyond language because of its dynamic character, but the Laozi nevertheless strives to express it in three aspects： 1） its flexibility and adaptability as represented in the metaphor of water; 2） its movement of reversal and return; 3） and in its existential significance as a guide for life. Heng dao can be called the non-objectified dao, which produces law, principle, rule, method, and so on. Looked at in this way, the dynamic character of heng dao can be called non-objective.
