Siemens
СРЕДСТВА ПРОМЫШЛЕННОЙ АВТОМАТИЗАЦИИ
официальный партнер Сименс
Каталог СА01 2017
архивный
(4872) 700-366
skenergo@mail.ru

Possible mains disturbances and causes

The quality of the mains voltage has become a decisive factor in the functioning, reliability, maintenance costs and service life of highly sensitive electronic installations and devices (computers, industrial controls, instrumentation, etc.).

Mains disturbances cause system failures and affect the function of plants as well as electronic loads. They can also result in total failure of the installation or equipment.

The most frequent types of disturbance are:

  • Long-term overvoltages
  • Long-term undervoltages
  • Interference pulses and transients
  • Voltage dips and surges
  • Electrical noise
  • Momentary network failure
  • Long-term network failure

Mains disturbances can be caused by a number of things, e.g.:

  • Switching operations in the supply system
  • Long cable paths in the supply system
  • Environmental influences such as thunderstorms
  • Mains overloads

Typical causes of mains disturbances generated in-house are:

  • Thyristor-controlled drives
  • Elevators, air-conditioning, photocopiers
  • Motors, reactive-power compensation systems
  • Electrical welding, large machines
  • Switching of lighting equipment

Disturbances in mains voltages can occur individually or in combination. Possible reasons for these disturbances, their effects and countermeasures can include:

System disturbances

Percentage of total disturbance

Result

Measure

Overvoltage

The supply voltage is exceeded by more than +6% for a prolonged period (acc. to IEC 60038)

Approx. 15% - 20%

Can result in overheating and even thermal destruction of individual components. Causes total failure.

SITOP power supplies with their wide operating voltage range offer sufficient protection against minor network overvoltages outside the permissible tolerance

Line undervoltage

The supply voltage is undershot by more than –10% for a prolonged period (acc. to DIN IEC 60038)

Approx. 20% - 30%

Can result in undefined operating states of loads. Causes data errors.

Use of a SITOP DC-UPS (uninterruptible DC power supply)
see Section 11

Interference pulses

Energy-rich pulses (e.g. 700 V/1 ms) and energy-poor transients (e.g. 2500 V/20 µs) result from switching operations in the supply system

Approx. 30% - 35%

Can result in undefined operating states of the loads and can lead to the destruction of components.

Use of surge protectors, see Catalog LV 10.1 2013, Section 6

Voltage dips and surges

The voltage level changes suddenly and in an uncontrolled manner, e.g. due to changes in loading and long cable routes

Approx. 15% - 30%

Can result in undefined operating states and destruction of components. Cause data errors.

Thanks to their internal buffer time, SITOP power supplies offer sufficient protection against short power failures

Electrical noise

A mix of frequencies superimposed on the mains due to bad grounding and/or strong HF emitters
such as radio transmitters or thunderstorms

Approx. 20% - 35%

Can result in undefined operating states of loads. Causes data errors.

Due to internal switching measures, SITOP power supplies offer sufficient immunity to electromagnetic interference

voltage interruption

Short-term interruption of the supply voltage (up to approx. 100 ms) due to short-circuiting in neighboring supply systems or starting of large electrical machines.

Approx. 8% - 10%

Can result in undefined operating states of loads, especially those with insufficient mains buffering. Causes data errors.

Use of a SITOP buffer module (in connection with SITOP smart or SITOP modular)
see Section 10

Voltage interruption

Long interruption of the supply voltage (longer than approx. 100 ms)

Approx. 2% - 5%

Can result in undefined operating states of loads, especially those with insufficient mains buffering. Causes data errors.

Use of a SITOP DC-UPS (uninterruptible DC power supply)
see Section 11



















skener.ru

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Арматура DENDOR

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Датчики и измерители

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Регуляторы и регистраторы

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Пневматическое оборудование

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Краны и Клапаны

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Измерительные приборы

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Системы беспроводного управления «умный дом»

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
Бесконтактные выключатели Конечные выключатели Оптические датчики Энкодеры

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
SKW-FS - Установка умягчения

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 23

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30

Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30


Deprecated: Function eregi() is deprecated in /home/h101150-2/siemens71.ru/docs/kip/kip.php on line 30
SKW-FK - Установка обезжелезивания

  © ООО "СК ЭНЕРГО" 2007-2022
  (4872) 700-366  skenergo@mail.ru
Яндекс.Метрика