switchgear devices
51IEC61850 — IEC 61850 [ [http://www.61850.com IEC 61850 overview] .] is a standard for the design of electrical substation automation. IEC61850 is a part of the International Electrotechnical Commission’s (IEC) Technical Committee 57 (TC57) [… …
52Helium mass spectrometer — A helium mass spectrometer is an instrument commonly used to detect and locate small leaks. It was initially developed in the Manhattan Project during World War II to find extremely small leaks in the gas diffusion process of uranium enrichment… …
53Mercury regulation in the United States — is a set of laws and regulations limiting the maximum concentrations of mercury (Hg) that is permitted in air, water, soil, food and drugs. These laws and regulations are promulgated by U.S. Federal Agencies such as the Environmental Protection… …
54Eaton Corporation — This article is about an industrial manufacturer. For other meanings see Eaton. Eaton Corporation Type Public(NYSE: ETN) S P 500 Component …
55Magnetic starter — A magnetic starter is an electromagnetically operated switch which provides a safe method for starting an electric motor with a large load. Magnetic starters also provide overload protection and an automatic cutoff in the event of a power failure …
56Tension Transitoire de Retablissement — Tension transitoire de rétablissement Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux… …
57Tension Transitoire de Rétablissement — Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux bornes d un appareillage électrique lorsqu… …
58Tension transitoire de rétablissement — Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux bornes d un appareillage électrique lorsqu… …
59Dielectric gas — A dielectric gas, or insulating gas, is a dielectric material in gaseous state. Its main purpose is to prevent or rapidly quench electric discharges. Dielectric gases are used as electrical insulators in high voltage applications, e.g.… …
60НКУ распределения и управления для строительных площадок (НКУ СП) — Комбинация одного или нескольких трансформаторных устройств или коммутационных аппаратов с устройствами управления, измерения, сигнализации, защиты и регулирования со всеми внутренними электрическими и механическими соединениями и конструктивными …
