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Каховська гес

Каховське водосховище найбільше на Дніпрі, його повний об'єм – 18,2 км3. Довжина гідровузла – 3,8 км. З Каховського водосховища починаються зрошувальні канали: Каховський, Північно-Кримський, Дніпро-Кривий Ріг та інші.

По гідротехнічних спорудах проходить залізниця та автомобільний шлях.

Каховська ГЕС – шоста сходинка Дніпровського каскаду ГЕС – розташована біля м. Нова Каховка.

Схема електричних з'єднань: блокова – генератор-трансформатор з однією двохсекційною робочою і однією обхідною системами шин 154 кВ. Кожний блок приєднаний до однієї з секцій шин через вимикач 154 кВ.

До складу гідровузла входять: будинок ГЕС, закритий розподільчий пристрій 154 кВ, водозливна залізобетонна гребля, земляні греблі та шлюз.

3. Pair-work Role-play.

St. A.

– You are a professor. You are examining one of your students. Ask him questions concerning Dniepro HPS or Kakhovka HPS.

St. B.

– You are a student taking an exam. Answer the questions of your professor.

Text 14.

1. Read the texts below. Interview each other in pairs. Try to collect as much information as possible about Dniester HPS and Role and importance of HPS in economics of the State. Get ready to present this information and to answer questions about it.

Dniester HPS

Dniester HPS is situated in the southwestern part of Ukraine on the Dniester River. There is Novodniestrovs'k town of power engineering specialists and construction of the HPS near it on the right bank of the River.

The principal area of Dniester water flow formation is a mountain region of the Carpathian Mountains. Floods are a property of Dniester water regime.

Under 1082 m total pressure structures length the right-bank earth-and-rock-fill dam is 600 m, a building of the HPS – 153 m, a block of mounting square – 59 m and left-bank earth-and-rock-fill dam – 270 m.

The open distribution device-330/110 kV is on the left bank.

The total storage capacity equals 3,0 km3.

The building of the HPS has an open spillway above a turbine half annex. The overflow front of the HPS has 12 beams. It is designed for 11280-m3/sec water pass.

The connection layout is executed in the form of blocks (2 hydropower units in each one. The block number 1 is connected to 110kV open distribution device, two others – to 330 kV open distribution device.

Two autotransformers of 200 MW each are used for connection of the open distribution device-330 and open distribution device-110 kV.

Role and importance of hps in economics of the State

Prima facie importance of hydroelectric power stations for national economy of the country is stipulated by electricity production.

In comparison with other electric energy sources hydroelectric power stations possess environmental-economic and technical advantages. Stream use for electric energy production makes possible to save a considerable quantity of fuel resources for national economy.

An important advantage of hydroelectric power stations is an absence of harmful pollutant emissions into circumambience.

There are some factors, which stipulate economic importance of hydroelectric power stations, namely:

construction of auto way and railway bridges across the Dniepro and Dniester Rivers, which belong to waterworks facility. It excluded separate bridges building costs (charges);

formation of auspicious conditions for piece fish industry development with the help of spawning-growing fish industry and fish plants building.

It has been established some recreation zones on the banks of all reservoirs of hydroelectric power stations.

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