Защита от пренапрежение

We’re offering a wide assortment of surge arresters for various applications: for protection in photovoltaics, for vision systems, for protecting power supply lines, for Fieldbus, for protecting LED, for RF and scale systems. Our clients can be sure they can...

We’re offering a wide assortment of surge arresters for various applications: for protection in...

Прочетете още

Категории

Показване на филтри
Скриване на филтриФилтрацияПоказване на филтри X
Manufacturers
more... less
Filter
Изтеглете списъка с продукти
Информация close
Products that are marked "On Order" in the "Available Quantity" column are usually not in stock. Such products are available for purchase, however, due to their limited customer base, they usually have higher minimum quantities. DACPOL offers products that are not in stock for the following reasons: DACPOL currently has a large number of electronic components in stock and adds new products every day, however, tens of thousands of additional components and their various variants are available from our suppliers. Even though it is unreasonable to have all these products in stock due to the limited sales, we believe that it is in the best interest of our customers to make them available. Our goal is to inform customers about the maximum number of products available and enable them to make decisions based on specifications, prices, availability, required minimums and our technical advice. Please note that selecting the "In Stock" checkbox may limit the display to only products available for delivery straight from the shelf.
PDF Образ
Производител
descasc
Име на продукта
descasc
 Вижте продукта Не. Производител
Налично количество
descasc
picture_as_pdf 2+ 3 Контрол на скобата (C + D) MSB10 серия CITEL 2+ 3 Контрол на скобата (C + D) MSB10 серия ВИЖ ГО -- On Order
picture_as_pdf MA3350 - крайни превключватели за електропроводи MTL Instruments MA3350 - крайни превключватели за електропроводи ВИЖ ГО -- On Order
picture_as_pdf MA05 / 10 - ограничители на електропроводи MTL Instruments MA05 / 10 - ограничители на електропроводи ВИЖ ГО -- On Order
picture_as_pdf MTL CPAC - ограничител на пренапрежение за видео системи MTL Instruments MTL CPAC - ограничител на пренапрежение за видео системи ВИЖ ГО -- On Order
picture_as_pdf MTL Airguard - Arressters за RF приложение MTL Instruments MTL Airguard - Arressters за RF приложение ВИЖ ГО -- On Order
picture_as_pdf MTL LC30 - преобръщане на ограничителя за системи за претегляне MTL Instruments MTL LC30 - преобръщане на ограничителя за системи за претегляне ВИЖ ГО -- On Order
picture_as_pdf PV кутии за сигурност CITEL PV кутии за сигурност ВИЖ ГО -- On Order
picture_as_pdf Прекъсващи граници за защита на фотоволтаичните системи Etitec -PV ETI Polam Прекъсващи граници за защита на фотоволтаичните системи Etitec -PV ВИЖ ГО -- On Order
picture_as_pdf Прекъсващи граници за ИТ устройства за 12 е CITEL Прекъсващи граници за ИТ устройства за 12 е ВИЖ ГО -- On Order
picture_as_pdf Резачването спира за неговите устройства за-06 CITEL Резачването спира за неговите устройства за-06 ВИЖ ГО -- On Order
picture_as_pdf V-тип кабелна скоба за крайни граници kn t 1316i CITEL V-тип кабелна скоба за крайни граници kn t 1316i ВИЖ ГО -- On Order
picture_as_pdf DC тип 2 (c) ds50pvs-500 пренапрежения CITEL DC тип 2 (c) ds50pvs-500 пренапрежения ВИЖ ГО -- On Order
picture_as_pdf 3 (d) MSB6 и MSB10 пренапрежение за LED защита в сградите CITEL 3 (d) MSB6 и MSB10 пренапрежение за LED защита в сградите ВИЖ ГО -- On Order
picture_as_pdf 2 + 3 пренапрежения (C + d) серия MLPX-XXX за 1-фазни инсталации CITEL 2 + 3 пренапрежения (C + d) серия MLPX-XXX за 1-фазни инсталации ВИЖ ГО -- On Order
picture_as_pdf 2 + 3 Arresters (C + D) MLPX-230x-X-2L серия за 2-фазни инсталации CITEL 2 + 3 Arresters (C + D) MLPX-230x-X-2L серия за 2-фазни инсталации ВИЖ ГО -- On Order
picture_as_pdf Резачването спира с 2 + 3 тип окабеляване (C + D) MLPX1-230L-W CITEL Резачването спира с 2 + 3 тип окабеляване (C + D) MLPX1-230L-W ВИЖ ГО -- On Order
picture_as_pdf Ресационните спирки с 2 + 3 окабеляване (C + D) DSLP1-230L CITEL Ресационните спирки с 2 + 3 окабеляване (C + D) DSLP1-230L ВИЖ ГО -- On Order
picture_as_pdf 2 + 3 Arrages (C + D) за LED осветление MLPC1-230L-R, MLPC1-230L-V CITEL 2 + 3 Arrages (C + D) за LED осветление MLPC1-230L-R, MLPC1-230L-V ВИЖ ГО -- On Order
picture_as_pdf MTL MA15 - Strage Arressters за автобуса на Fieldbus MTL Instruments MTL MA15 - Strage Arressters за автобуса на Fieldbus ВИЖ ГО -- On Order
Резултати на страница:
Върнете се в началото

We’re offering a wide assortment of surge arresters for various applications: for protection in photovoltaics, for vision systems, for protecting power supply lines, for Fieldbus, for protecting LED, for RF and scale systems. Our clients can be sure they can rely on us and the quality of our products. We’re continuously trying to make the purchase process from the semiconductors’ category easy and fast.

What is power surge protection?

Power surge protection is a device, which goal is to protect electrical devices from surges. This device limits follow current. Surges are created during lightning strikes in power electronic lines or in case of turning off the aerial line. Surges can lead to damages of insulation and other elements.

What are the most important parameters of surge protection?

  • Limp surge current – is a current with a shape of 10/350 µs, defined through top value and Q load. Used for testing surge arresters type 1, corresponding with the lightning current.
  • AC In current – is a current with a shape of 8/20 µs. Used testing surge arresters type 1 and 2, corresponding with the lightning current or commutation surges.
  • The Highest discharge current Imax – is a max value of a current with a shape of 8/20 µs, which will not damage the arrester type 2.
  • The Highest voltage of stable work Uc – AC value which can be permanently led to clamps of surge arresters.
  • Voltage protection level Up – is a parameter characterized by work of surge arrester, describing the biggest voltage value to which the surge is limited.
  • Odd surge UT– is the biggest surge value, which, if working for a given period of time, will not damage the arrester.
  • Max security – the highest value of security montaged before the arrester to protect from long-time short circuit currents.

Types and applications of surge arresters.

We distinguish the following types of surge arresters:

  • Type 1 – protects from direct and close lightning strikes.
  • Type 2 – protects the majority of receivers from commutation surges and reduced surges by surge arresters type 1.
  • Type 3 – protects especially sensitive/expensive electrical and electronic devices.
  • Sets of surge arresters type 1+2.

Surge arresters type 1 are mostly installed at the beginning of the installation, powered from cable system or aerial system e.g. main switchgear nn. Their task is to carry lightning current, created during direct lightning strikes.

Surge arrester hybrid type 1+2 are installed before the meter, protecting it from possible surges. This type of devices provide protection from lightning strikes into objects close to arterial lines, directly to the line or in some distance from the surge arrester installation place.

Surge arresters type 2 protect installation from potential causes of surges, created due to lightning strikes or connection processes in power electronic systems. Their task is to limit surges caused by protection apparatus. Used to protect engines, transformers and welders.

Type 3 used for protecting audiovisual devices and computers. Their task is to protect sensitive receivers from surges, which were reduced at previous protection levels. These devices are used in case of unspecified resistance of current apparatus or when the distance between the sensitive device and last protection level, equals several dozens of meters.