Siemens
СРЕДСТВА ПРОМЫШЛЕННОЙ АВТОМАТИЗАЦИИ
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Каталог СА01 2018
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6SL3000-0CH31-1AA0

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Заказной номерВесPGОписание продуктаЦена
6SL3000-0CH31-1AA022751SINAMICS СЕТЕВОЙ ДРОССЕЛЬ, ВХОД: 3-ФАЗН. 660-690В, 50/60 ГЦ 107AПо запросу

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A line reactor is needed for high short-circuit power levels, partly to protect the actual converter against excessive harmonic currents, and thus against overload, and partly to limit the line harmonics to the permissible values. The harmonic currents are limited by the complete inductance comprising the line reactor and line supply cable inductance. Line reactors can be omitted if the line supply cable inductance is increased sufficiently, i.e. the RSC value must be sufficiently small.

RSC = Relative Short-Circuit power: Ratio of short-circuit power SK line at the supply connection point to fundamental apparent output Sconv of the connected converters (according to IEC 60146‑1‑1).

The following applies for SINAMICSВ G130 converter built-in units:

Power

Line reactor can be omitted

Line reactor required

kW

For RSC

For RSC

< 200

≤ 43

> 43

200В ...В 500

≤ 33

> 33

> 500

≤ 20

> 20



It is recommended that a line reactor is always connected on the line side of the converter, as in practice, it is often not known on which supply configuration individual converters are to be operated, i.e. which supply short-circuit power is present at the converter connection point.

A line reactor can only be omitted when the value for RSC is less than the values listed in the above table. This is the case, when the converter, as shown in the following figure, is connected to the line supply via a transformer with the appropriate rating.

Notice:

However, a line reactor is always required when a line filter is used.

In this case, the line short-circuit power Sk1 at the connection point of the converter is approximately:
Sk1В = Stransf / (ukВ transf + Stransf / Sk2В line)

Formula symbols

Meaning

Stransf

Transformer power rating

Sk2 line

Short-circuit power of the higher-level voltage

uk transf

Per-unit short-circuit voltage



















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Арматура DENDOR

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Датчики и измерители

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Регуляторы и регистраторы

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Пневматическое оборудование

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Краны и Клапаны

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Измерительные приборы

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Системы беспроводного управления «умный дом»

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Бесконтактные выключатели Конечные выключатели Оптические датчики Энкодеры

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SKW-FS - Установка умягчения

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SKW-FK - Установка обезжелезивания

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