Читайте в N3 (16) 2006:

  • Вебер К.Е. Вступительное слово
  • Пенягина Ю.А. НКУ модульной конструкции производства ОАО «Энергопром» – расширение функциональных возможностей и соответствие требованиям сегодняшнего дня
  • Penjagina Yu.A. Low-voltage complete devices of a modular design, produced by OJSC «Energoprom» – expansion of functionalities and conformity to requirements of today
  • Шувалов А.В. Применение ячеек К-01Э в распредустройствах 6(10) кВ для различных отраслей промышленности внутренней и наружной установки
  • Пенягина Ю.А. КТПВ (комплектная трансформаторная подстанция внутренней установки) до 1000 кВА – новые решения для всех отраслей промышленности
  • Penjagina Yu.A. CITS (complete indoor transformer substation) up to 1000 kVA – a new decisions for all industries
  • Шмаков А.В. Ячейки КРУ кассетного типа – перспективное изделие ОАО «Энергопром»
  • Shmakov A.V. Cubicle switchboard of cassette type – a perspective item of Open JSC «Energoprom»
  • Касаткин К.А. Применение микропроцессорной техники различных производителей в продукции ОАО «Энергопром»
  • Kasatkin K.A. Application of microprocessor technics of various manufacturers in «Energoprom» production
  • Азналин И.Н., Касаткин К.А. Блок- боксы электротехнического назна- чения как продукт максимальной заводской готовности
  • Aznalin I.N., Kasatkin K.A. The block-boxing of electrotechnical purpose as a product of the maximal level of factory assembling
  • Касаткин К.А. Повышающие подстанции 6/10 кВ в блочно-модульном исполнении
  • Шувалов А.В., Галактионов А.А. Расширение возможностей катодной защиты трубопроводов различного назначения с помощью установок производства ОАО «Энергопром»
  • Shuvalov A.V., Galaktionov A.A. Expansion of various pipelines cathodic protection opportunities with the help of installations of «Energoprom» production
  • Шмаков А.В. «От проекта до объекта»
  • Шмаков А.В. Применение сухих трансформаторов в КТП наружной и внутренней установки – требование сегодняшнего дня
  • Шувалов А.В. Высоковольтный пункт коммерческого учета – требо- вание энергосбытовых компаний
  • Шмаков А.В. КРУН-РВА – совместное решение двух компаний ОАО «Энергопром» и РК «Таврида- Электрик» для применения в распределительных сетях 6(10) кВ
  • Касаткин К.А. Новый взгляд на автоматизацию распределительных сетей напряжением 6(10)кВ с применением автоматических разъединителей
  • «Таврида Электрик». Перспективы применения вакуумных выключа- телей кассетного типа в КРУ
  • Первунин В.В. Концепция создания оптимального преобразователя катодной защиты
  • Барабанов Ю.А., Езерский В.Г. Комплекс защит сетей 110–220 кВ
  • Ерошкин А.В., Шейкин Ю.И. Сравнительный анализ вариантов технического решения плавного пуска мощных асинхронных электродвигателей
  • Ладнай В.В. Сотрудничество: Phoenix Contact и Энергопром
  • Золотницких С.В. Применение гидравлического оборудования на предприятиях нефтегазодобывающего комплекса
  • Чернов Н.В. Защитно-коммутаци- онное оборудование Legrand
  • Шидловский С.В. «Мы защитим вас от коррозии»
  • Бондаренко С.В. Оборудование для защиты подземных металличес- ких сооружений от электрохимичес- кой коррозии производства ОАО «Ставропольский радиозавод «Сигнал»
  • Корякина В.А. Вакуумная коммутационная аппаратура нового поколения Саратовского ФГУП «НПП «Контакт»
  • ООО «Горизонт». АСУ ТП «Водоканал» – автоматизированная система диспетчеризации и управления водоснабжением и водоотведением
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    LOW-VOLTAGE COMPLETE DEVICES OF A MODULAR DESIGN, PRODUCED BY OJSC «ENERGOPROM» – EXPANSION OF FUNCTIONALITIES AND CONFORMITY TO REQUIREMENTS OF TODAY

    Penjagina Yu.A., Principal engineer of the Informational Center
    of OJSC «Energoprom», Ozyorsk

    Tasks of economic reorganization in our country provide the development of integrated programs for production modernization and reconstruction, its continuous updating on the basis of modern techniques and high technology, smooth production flow, maximum utilization of the equipment, essential increase of shifts of its work. All this is entirely shed on to the both industrial enterprises and installations power supply systems.

    To insure the permanent equipment updating the modern systems of power supply should have the increased fail-safety of operation, reliability and flexibility, should provide the set parameters of the electric power quality, be highly efficient, and meet the requirements of the fire, explosion and electrical safety.

    During last years the positive tendencies, which confirm an opportunity for organization of the modern manufacture of the Low-Voltage Complete Devices (LVCD) at the Russian factories were outlined in manufacture of low-voltage complete devices for the electric power distribution and the electric drives control.

    The leading manufacturers produce three alternate designs taking into account the requirements of the operational organizations regarding the equipment maintainability:
    Alternate design A – sliding design at which the block is connected by means of sockets both to LVCD’s power trunks and to the terminal clips for external outgoing wires.
    Alternate design B – plug-in design at which the block is connected to LVCD’s power trunks by means of sockets, and to the terminal clips for external wires - through a demountable plug socket, motionless part of which is mounted on the block.
    Alternate design C – a stationary design. The block is connected to both power buses and external outgoing wires through terminal clips.

    At alternate design A the preliminary disconnected block (for example, at the switched - off automatic switch) can be disconnected from the alive power trunks, and be taken out from LVCD without use of any tool.

    If there is a need to install (modernize, replace, expanse the capacities) the new LVCD, usually there is a necessity not only to purchase the equipment, but also to build a room for its placing.

    Switchboard room with the stationary equipment occupies the area on 70 % more then the equipment completed with sliding elements.

    Besides this, the very important factor, which affects the equipment choice, is the minimal technological idle times at breakage.

    At the switch failure on one outgoing line, at LVCD of traditional design (the panel of rack modification) it is necessary to disconnect all section and de-energize all the consumers. The replacement of switch can take the whole working day. When use the sliding modules the replacement of the failed equipment takes about 10 minutes.

    One more tendency of the LVCD production is the increase of service safety. This results in the requirement of creation of the separate bus bar compartment, which is inaccessible at operation. Active promotion of five-wire system leads to occurrence of the fourth trunk (working zero).

    In view of all the mentioned above, the basic purpose of LVCD manufacturers is the creation of new LVCD systems which should satisfy to the following conditions:
    – safety for the attendants;
    – faultless reliability;
    – an opportunity of the subsequent expansion;
    – fast replacement of the failed device without switching-off of all LVCDs;
    – high resistance to the currents of short circuit, including bus bars and protective devices;
    – fire and electrical safety.

    Recently the OJSC «Energoprom» started the production of LVCD of the modular design.

    Cases of LVCD-M series with sliding modules are intended for input and distribution of the electric power of the voltage up to 1000 V, as well as for protection and control of the crucial consumers, electric motors at the large industrial facilities, pink-collar sphere and infrastructure.

    Characteristics of cases provide a high level of safety for the attendants, an excellent adaptability to needs of specific applications, big flexibility.

    Acquisition of a board of control stations (BCS) with the unified modules allows:
    – to create an effective configuration of cases with necessary number of constructive elements depending on rated current of a feeder and functional purpose;
    – to make the changes during realization of the project easier due to interchangeability of functional blocks and accommodation of their electric circuit wiring outside of a board;
    – operatively to replace and to supplement the modular elements without switching-off of the voltage at the modular trunks and at the next connections of a board;
    – at the most to reduce expenses for the power installation modernization without strict time restrictions and without expenses on the reserve equipment, not worsening thus the BCS serviceability as a whole;
    – to provide compatibility of the equipment of different manufacturers within one project, which leads to optimization of the system cost, especially in comparison with its import analogues.

    The LVCD-M cases are installed in the control rooms and are devices of double-sided service. The unified system of bearing constructions and modular trunks allows creating boards, both with back, and with forward connection, providing thus an optimum level of access.
    Installation of LVCD-M cases in power control room is possible both in one line and in two lines. In a case of two-line installations, the buses of the cases installed in different lines, are connected with each other by means of a bus bar bridge which is delivered under the order in complete with LVCD-M. At double-side cases construction the distance of 800 mm between the case’s back wall and a room wall should be provided.

    The wraparound-way constructions of LVCD-M cases are a basis for assembly of control stations board. A system of apertures and grooves in a skeleton provides an opportunity to divide elements into sections and to mount necessary functional devices and buses without additional machining. The wraparound-way constructions are installed on a socle.

    Each LVCD-M case consists of compartments, collecting which in different combinations and amounts one may create any switching centers. All LVCD-M cases internal elements are made from the zinced steel.

    According to their assignation the LVCD-M case compartments are subdivided:
    – for installation of modular trunks;
    – for installation of the functional equipment (lead-in modules of BMV series, the section of BMS series, out-going connections of BMO series);
    – for installation of auxiliary devices (terminals, meters, transformers of a current; devices of relay protection and automatics);
    – for connections of cables of the customer.

    The design of cases provides three types of the equipment installation depending on the type and functional purpose of the module:
    – on sliding chassis for installation of automatic switches;
    – on sliding modules for installation of group of devices (the automatic switch, the actuator, etc.);
    – stationary blocks of relay protection and automatics, the measuring equipment.

    Modules for out-going connections feeding are the sliding systems of two standard sizes: for rated current up to 25A and up to 80А. They are characterized with a high degree of operational reliability and provide necessary safety of the attendants. The equipment inside the block is installed on special boards and holders, thus its configuration allows block servicing in test position.

    The sliding modules system allows to use the heavy equipment, and absence of rotating mechanisms makes system of movement extremely simple and reliable.

    To connect the modules to power trunks and to feed the secondary control circuits the demountable contact connections are used; their plugs are installed on a back wall of the module, sockets are installed on the assembly panel which plays role of the protective shield and closes the compartment of vertical buses.

    The auxiliary probes established on a back wall of the module are used for exact concurrence of demountable contacts.

    Sliding modules can take three possible positions:
    1) the module is in working position as a part of a board, the main circuits and control circuits are closed;
    2) the module is a part of a board, the main circuits are dead, the control circuits are closed;
    3) the module is in structure of a board, the main circuits and control circuits are dead.

    The sliding modules in cases are supplied with the blocking which makes impossible:
    – installations of a sliding element in the attached position when automatic switch is switched-on;
    – rolling-off a sliding element from the attached position into the test position when automatic switch is switched-on.
    – switching-on of the automatic switch installed on a sliding element in intermediate positions (not fixed in attached and test position).

    The design of modules stipulates the use of two kinds of an automatic switch drives:
    1) The manual drive which is taking place through a door (the remote handle).
    2) Electric remote drive.

    Thus, acquisition of BCS with the cases of modular design such as LVCD-M allows:
    – to create an effective configuration of cases with required quantity{amount} of departing elements depending on rated current of a feeder;
    – to replace operatively and to supplement the modular constructions without switching-off the voltage from modular trunks and from the next connections to board;
    – to reduce at the most the area of a control room;
    – to increase BCS’s fire and electrical safety,
    and, as consequence, to minimize total expenses for equipment purchase and installation.