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КТПН — комплектные трансформаторные подстанции наружной установки мощностью от 25 до 2500 кВА напряжением до 10 кВ


КТПН (комплектные трансформаторные подстанции наружной установки) являются устройством регулирующим электрическую энергию. Такие подстанции широко распространены в сферах строительства, ЖКХ, а также в других промышленных сферах. При этом запрещается использование подстанций в условиях содержания в воздухе едких паров и газов.
Изготовление КТПН регламентируется ГОСТ 14695-80 и после производства оборудование проходит контрольные испытания на соответствие заданным параметрам. Подстанция имеет дверцы для обслуживания и наблюдения за измерительными приборами, аппаратурой, содержащейся в подстанции. Кроме того, помещение оснащается защитой от молний и токов, стальные элементы имеют антикоррозийное покрытие. При эксплуатации температура может достигать 45 С°.
После производства устройство испытывается на прочность конструкции, стойкость к возникновению пожаров и выносливость к внешним нагрузкам. Также проверяется поверхность подстанции — она не должна содержать следов окисления, ржавчины и других дефектов.

Технические характеристики

Номинальное напряжение, кВ:  Значение
  • на стороне ВН
6; 10
  • на стороне НН
0,23; 0,4
Номинальный ток термической стойкости в течении 1 секунды, кА:
  • на стороне ВН
не менее 16
  • на стороне НН
не менее 20
Номинальный ток электродинамической стойкости, кА:
  • на стороне ВН
не менее 41
  • на стороне НН
не менее 50
Температура окружающего воздуха от минус 45°С до плюс 40°С
Степень защиты IР23
Климатическое исполнение и категория размещения У1, УХЛ1

Классификация исполнений КТПН

Признаки классификации Исполнение
Признаки классификации Исполнение
По конструктивному исполнению в утепленном блок-боксе столбовая
По электрической схеме на стороне ВН тупиковая проходная тупиковая
По способу установки стационарная, передвижная (на полозьях) стационарная
По числу применяемых силовых трансформаторов однотранс- форматорная двухтранс- форматорная однотрансформаторная
По выполнению Высоковольтного ввода воздушный, кабельный воздушный
По выполнению вводов отходящих линий на стороне НН воздушный, кабельный воздушный, кабельный
По выполнению нейтрали трансформатора на стороне НН с глухозаземленной нейтралью, с изолированной нейтралью (по специальному заказу)
По мощности силового трансформатора, кВА 25 — 2500 25 — 250


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