Аннотация В работе проведены расчеты по устойчивости энергосистемы(транзит север-восток-юг) ЛЭП 500кВ в нормальном и аварийном режиме работы, а также рассмотрены существующие принципы работы противоаварийной автоматики в Национальной электрической сети Казахстана Annotation The work has carried out calculations on the stability of the power supply system of 500 kV power lines in normal and emergency operation, and also examines the existing principles of operation of emergency control automation in the National Electrical Network of Kazakhstan Андатпа Жұмыста қалыпты және төтенше жағдайда 500 кВ-тық электр тарату желілерінің энергетикалық жүйесінің (солтүстік-шығыс-оңтүстік транзит) тұрақтылығы туралы есептер жасалды және Қазақстанның Ұлттық электр желісінде авариялық-құтқару жүйесінің қолданыстағы принциптері қаралды 6 Introduction Currently, for emergency control automation, three methods (algorithms) of emergency control are considered: II-DO, I-DO, I-AFTER. The II-DO algorithm refers to this method of selecting dosages, when settings (decision table) are pre-calculated by staff (several times a year), and when an alarm arrives, control actions are issued depending on the network status (repair scheme number) and the amount of flows over controlled sections, which are compared with the settings. In this diploma work, the general concepts of north-east-south distribution networks are considered, the problems are considered, their power and optimal installation location are carried out, calculations are performed with different network modes, and general conclusions on the work done are given. 7 Content Introduction ............................................................................................................... 7 1 Structure of UES of Kazakhstan ............................................................................ 9 1.1Entering the North-East-South transit…………… ..………………………...9 2 The existing principles of emergency automation in the National Electric Network of the Republic of Kazakhstan ............................................................ ….15 2.2 Analysis of the current state of the emergency control system of the Unified Energy System of Kazakhstan………………………………………………….....19 2.3. Analysis of the state and principles of the organization of the existing system of ASU and the principles of organization of the designed devices of the APSU according to the implemented projects of power grid construction in the Unified Energy System of Kazakhstan (including the East-South transit of the Unified Energy System of Kazakhstan). ................................................................. 21 2.3.1. The principles of the existing APNU UES of Kazakhstan in a 500 kV network. ............................................................................................................. 21 2.4 Overview of modern emergency control systems in the countries of near and far abroad ................................................................................................................. 29 3 Calculation of operating modes............................................................................ 33 3.1 Short description of the program worked «Rastr3WIN» .............................. 33 3.2 Calculation of scheme North-East-South transit 500kV ............................... 34 4 Labor protection and life safety ........................................................................... 41 4.1. Analysis of working conditions at substations ............................................. 43 4.2 Substation plan .............................................................................................. 44 4.3 Calculation of lightning protection substation .............................................. 46 4.4 Calculation of grounding substation ............................................................. 49 5. Technical data of the reactor and calculation of economic efficiency ............... 50 5.1 stability control using the WAMS system .................................................... 50 5.2 Calculation of cost and net profit .................................................................. 55 5.3 Investment Performance Indicators ............................................................. 56 Conclusion ............................................................................................................... 59 List of references ..................................................................................................... 60 8 1 Structure of UES of Kazakhstan The Unified Electric Power System of the Republic of Kazakhstan (UES RK) is a combination of power plants, power lines and substations that provide reliable and high-quality power supply to consumers of the country. State regulation in the field of electric power industry is carried out in order to: -maximally meeting the demand of energy consumers and protecting the rights of participants in the electricity and heat market by creating competitive market conditions that guarantee consumers the right to choose electricity and heat suppliers; -ensuring reliable and stable operation of the electric power complex of the Republic of Kazakhstan; -unity of management of the electric power complex of the Republic of Kazakhstan as a particularly important life support system for the country's economic and social complexes. The state authorized body exercising control and regulation in the field of electric power industry is the Ministry of Industry and New Technologies of the Republic of Kazakhstan. 1.1 Entering the North-East-South transit A special place in the development of the economy of any country is occupied by the energy complex. As part of the implementation of the State Program "Nurly Zhol", a special place is given to the development of the energy complex. In the context of the development of the energy complex, we mean the construction of a 500 KV (kilovolt) overhead line, a North-East-South transit. What does it mean. In fact, the territory of Kazakhstan is much larger and certainly the concentration of places where electricity is consumed for the most part, that is, at the center of consumption, is rather generalized. In this regard, for sustainable energy supply of consumers, it is necessary to build lines that ensure the transfer of this electricity to consumers. The northern region becomes a donor for other regions where such generation is not carried out, but consumption is higher than the generation volume. Thus, we need to transfer a sufficient amount of electricity and power from surplus areas in terms of the power of the north to the deficit areas in terms of the power of the south. In addition, the southern region has high rates of economic development, and we must rely on the fact that all growth rates should be satisfied with the increase in electricity. Thus, the project "North-South" will be confirmed by its solvency in the future. 9 figure(1.1.) North-East-South transit 10 The purpose of this branch implementation is to increase the capacity of the capable network and ensure coverage of the capacity deficit of the East Kazakhstan Region, regardless of the transit of electricity capacity from the Russian power system and ensuring full power output of the Shulbinskaya HPP. The implementation period of the first stage from 2011 to 2017. The project cost is 53.3 billion tenge Power lines of 500 kV are built, this is Ekibastuz - Shulbinsk HPP-Ust- Kamenogorsk. The total length is 598.5 km and 220 KV is the connection Semey- Shulbinskaya HPP with access to the substation 500 KV Semey with a length of 106 km. Completed construction and installation work at all these substations, this is the 500 KV Semey substation, the 500 KV Ust-Kamenogorsk substation and the 1150 KV Ekibastuz substation, and also the 220 KV Shulbinskaya HPP The duration of this project from 2012 to 2018. The project cost is 105.5 billion tenge. Financing is carried out both at the expense of the company itself, as well as KZT 47.5 million received from the UAPF under the coupon bond of KEGOS JSC. The implementation of the second stage is carried out in accordance with the schedule; at present, construction and installation works are underway in all areas of the facility. The total length is 883 km, the line - 500KV The second phase of the North-East-South transit corridor included the construction of a 500 kV line Shulbinskaya HPP - Aktogai - Taldykorgan - Almaty. The implementation of this project will increase the transit potential of the national electrical network in the direction of "North-South". From the implementation of the project obtained a significant multiplier effect. Equipment and materials produced by domestic manufacturers were widely used in construction: reinforced concrete products, metal supports, cabling and wiring products, communication capacitors, voltage transformers, auxiliary transformers and relay protection and automation panels. The input of these transmission lines increased the transit of electricity from the northern power plants to the southern regions of Kazakhstan from 1,450 MW to 2,100 MW. In addition, the new OHL will allow to solve a number of important tasks, including to strengthen communication with the East Kazakhstan region, where until now electricity has been supplied through the territory of Russia. It will also cover electricity demand for electrified sections of railways and energy- intensive facilities of the region’s mining industry. It is also important that the commissioning of eastern