“Design of 400/220kV Sub-station” S.M. MUJUMDAR 27th April 2005 Mumbai General Manager (sub-station Engineering) Jyoti Structures Ltd.‚ Agenda Overview of 400kV sub-station Design Process Design considerations Question / Answer Imp. considerations in substation design Safety of personnel and equipment Reliability and Security Adherence to Statutory obligations – I.E. rules‚ Environmental aspects Electrical design considerations
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Comparing Hardness and Density of a Solid Name of Solid Hardness Density Talc 1 2.75 Fluorite 4 3.13 Calcite 3 2.71 Quartz 7 2.62 Gypsum 2 2.3 Apatite 5 3.19 My graph has no correlation. My hypothesis for this Experiment is that a mineral is able to scratch a mineral with a lower number and can‚ therefore be scratched by a mineral with a higher number. A mineral’s density is the amount of matter in a given space (mass/volume). Each mineral has a characteristic density (density
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Shapiro 1 Lily Shapiro Ms. Manchester 14 November 2012 AP English 3 2nd Period Style Analysis: The Tenacious Turtle In chapter three of Grapes of Wrath‚ by John Steinbeck‚ The adventure of a determined turtle progressing along a road is illustrated. The tone of the chapter is optimistically objective‚ as well as sympathetic toward the struggles the turtle encounters. The turtle has the goal of crossing the road within his journey‚ and the degrading challenges he faces empowers him to continue
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certainty: What was confusing about this mineral? What other minerals do you think it could be? Remember‚ the minerals in the virtual lab include seven of the following: borax‚ calcite‚ corundum‚ graphite‚ gypsum‚ orthoclase feldspar‚ pyrite‚ quartz‚ talc‚ and topaz. Identification of Mineral Percent Certain Explanation of Certainty Example: Fluorite 80% certain I am almost certain this mineral is fluorite‚ but I am not completely sure. Fluorite and gypsum are both white‚ shiny‚ have white
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eliminate possibilities. We must be sure we have a freshly exposed surface‚ because weathering can change the color of a mineral. Some minerals‚ such as sulfur‚ always have the same color(yellow). Other minerals may have different colors. One example is quartz‚ which may be clear‚ purple‚ pink and even gray! 2.Luster- Luster is the way light reflects from a mineral’s surface. Luster is either metallic or nonmetallic. Metallic minerals look like.... well‚ a metal. Nonmetallic minerals can be glassy
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in 1970 In 1970‚ the introduction of quartz technology changed the nature of competition in the watch industry once again. The rise of quartz technology hastened the decline of the Swiss watch industry. Swiss watchmakers had refused to embrace quartz based on the belief that electronic watches were unreliable‚ unsophisticated‚ and beneath Swiss quality standards.By 1984‚ more than three-fourths of the watches sold around the world were based on quartz technology (most were manufactured in Hong
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Porphyritic granite Porphyritic granite is an igneous rock‚ which consists of orthoclase feldspar‚ quartz and orthoclase. This type of rock is made up of two different grain sizes‚ larger crystals referred to as phenocrysts‚ and smaller granite sized grains. The name for porophyritic originated from the Latin word porphyry which is defined as purple‚ and is known as a color royalty. This rock has been used as early as 18 AD and was discovered by a Roman legionnaire named Cauius Cominius.
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Sedimentary rocks in Pakistan range in age from Precambrian to Miocene i.e from oldest to youngest on the geological time scale form 542 million years to latest. Luckily for geoscientists all of them are exposed in different parts of the country. Lithologically they constitute sandstone‚ limestone‚ shale and mixed lithologies of them all. These rocks are exposed all along the mountain ranges from Islamabad in north to Karachi in the south. Igneous rocks are exposed north of Peshawar or only at
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herb vaporizer‚ The Linx Gaia. “Innovation distinguishes between a leader and a follower” - Steve Jobs With it’s innovative Quartz heating chamber‚ clean vapor path design‚ unique air insulation‚ ultra compact size‚ complete temperature variability and signature glass mouthpiece‚ the Linx Gaia is truly vaping innovation for a new generation. What’s the big deal about a quartz chamber? Most dry herb heating chambers are made of steel or ceramic and while they do a good job conveying heat‚ they have
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The definition of a mineral is an inorganic substance and a rock is a solid substance forming on the surface of earth and other similar planets‚ it’s also in oceans and soil. Citrine is one of the most popular minerals. It is a variety of quartz. Citrine is a yellowish-orange mineral. Citrine is a very popular gemstone because it is very affordable and very pretty. Along with topaz‚ citrine is the birthstone for the month of November and the anniversary gemstone for the 17th year of marriage. Citrine
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