SM AirSeT Na ƙarfin hanyoyin kamar zafi daidai zuwa 24 kV / Ring Main Unit

Gwọ́n àti

Iṣẹ́ aláṣẹ ẹni tó jẹ́ olórí ọ̀fíìn

Iṣẹ́ Schneider Electric nínú ẹ̀ka ọ̀rọ̀ yìí ti bẹ̀rẹ̀ lọ́dọ́ mẹ́jọ. Lẹ́yìn tí ó ti ṣe ọ̀kan ọ̀gbọ̀n cubicles, SM AirSeT jẹ́ ọ̀kan nínú àwọn ìtàn tó dára. Tẹ́síwájú tó pọ̀ ní iṣẹ́ fún ìtẹ́lẹ̀ kí ó ṣe tàbí kí ó sọ̀nù ní òde ọ̀kọ̀rọ̀ méjì.

Èyí túmọ̀ sí pé ní ọjọ́ wọ̀nyí Schneider Electric lè fún àwọn èrò tó jẹ́ ọ̀kan: vacuum type circuit breaker cubicles títí 24 kV àti standard or enhanced internal arc withstand cubicles láti ṣe àtúnṣe fún àlàáfíà eniyan pẹ̀lú IEC standard. Èyí fi ń ṣe fún ẹ̀rọ rẹ̀: ọ̀kan tó jẹ́ olórí ọ̀fíìn, pẹ̀lú àwọn Medium Voltage units tó ti di òní ní agbègbè àgbáyé.

A ti ṣe àtúnṣe èyí pẹ̀lú àwọn èrò tó jẹ́ ọ̀kan fún àwọn ẹni láti ṣe àtúnṣe SM AirSeT, ọ̀kan tó jẹ́ ọ̀kan tó jẹ́ ọ̀kan tó jẹ́ green generation of medium voltage switchgear. SM AirSeT tó jẹ́ modular jẹ́ ọ̀kan nínú harmonized cubicles pẹ̀lú vacuum breaking technology, pẹ̀lú ọjọ́ ìgbà tó jẹ́ 40 ọdún.

Àwọn cubicles yìí fi ń ṣe gbogbo àwọn èrò rẹ̀ nínú Medium Voltage substation títí 24 kV pẹ̀lú superposing their various functions. Àwọn cubicles SM AirSeT jẹ́ ọ̀kan tó jẹ́ ọ̀kan tó jẹ́ ọ̀kan tó jẹ́ in-depth analysis of your requirements, both now and in the future, SM AirSeT cubicles mean that you can take advantage of all the features of both a modern and proven technology.

Awọn ẹ̀ka

Innovation is in the Air

Sustainability, let's clear the Air

Ní ọjọ́ wọ̀nyí, gbogbo ẹni fẹ́ ṣe decarbonize, ṣùgbọ́n ìrànlọ́wọ́ nínú ìtàn elétricity fi ń ṣe ìbàjẹ́ bí... títí ní ọjọ́ wọ̀nyí!

SM AirSeT fi ń ṣe èyí pẹ̀lú tó ṣe àtúnṣe fún ìtẹ́lẹ̀ kí ó ṣe tàbí kí ó sọ̀nù níbi tí a máa ń lo SF6 tó jẹ́ sustainable technology tó jẹ́ pure air for insulation and vacuum technology for arc interruption. Our innovative arrangement with Shunt Vacuum Interruption (SVI)® fi ń ṣe breaking without use of alternative gases, and producing no toxic by-products.

A fi ń fún ẹ̀ka tó jẹ́ ọ̀kan, footprint and functionality as our previous generation switchgear, but with the enhanced sustainability available.

Pure air as the ultimate choice

Adopting pure air switchgear is not only better for the environment but also helps improve health and safety as pure air is naturally sustainable. It reduces the switchgear's carbon footprint across its full lifecycle - from manufacturing to end of life - by eliminating the need for SF6 or alternative gas and avoiding the end-oflife recapture, recycling.

No compromise on benefits

The ingenious design retains the benefits valued by customers in former SF6 equipment: compact physical footprint, 3-position switch, transformer protection via switch-fuse unit - all important considerations to avoid changes to installations and working practices. 

Transparent for the future

Pure air is transparent and gives peace-of-mind, because it helps avoid the risk of future regulations. 

Range description

Normal operating conditions

Ambient air temperature

• Less than or equal to 40 °C

• Less than or equal to 35 °C on average over 24 hours

• Greater or equal to -25 °C

Altitude

• 1 000 m, possible till 3 000 m with impulse withstand voltage and power frequency derating

Solar radiation

• No solar radiation influence is permitted

Ambient air pollution

• No significant pollution by dust, smoke, corrosive and/or flammable gases, vapors or salt Humidity

• Average relative humidity over a 24 hour period, less than or equal to 95 % • Average relative humidity over a 1 month period, less than or equal to 90 %

• Average vapor pressure over a 24 hour period, less than or equal to 2.2 kPa

• Average vapor pressure over a 1 month period, less than or equal to 1.8 kPa

For these conditions, condensation may occasionally occur. Condensation can be expected where sudden temperature changes occur in periods of high humidity.

To withstand the effects of high humidity and condensation, such as breakdown of insulation, please pay attention to on Civil Engineering recommendations for design of the building or housing, by suitable ventilation and installation.

General characteristics

Electrical characteristics

Units for protection function

Switch-fuse

Vacuum circuit-breaker

Factory-built cubicles Description

Switch and fuse protection cubicles

1. Switchgear: switch-disconnector and earthing switch in an enclosure filled with pressurized air, meeting 'sealed pressure system' requirements.
2. Busbars: all in the same horizontal plane, thus enabling later switchboard extensions and connection to existing equipment.
3. Connection: accessible through front, connection to the lower switchdisconnectorand earthing switch terminals (IM cubicles) or the lower fuseholders (PM and QM cubicles). This compartment is also equipped with an earthing switch downstream from the MV fuses for the protection units.
4. Operating mechanism: contains the elements used to operate the switchdisconnectorand earthing switch and actuate the corresponding indications (positive break). 
5. Low voltage: installation of a terminal block (if motor option installed),  LV fuses and compact relay devices. If more space is required, an additional enclosure may be added on top of the cubicle.

Compartments and devices Switchgear

EvoPacT circuit breaker

EvoPacT is our latest range of state-of-the-art vacuum circuit breaker. Its design is the result of more than 40 years of Schneider Electric experience in switching devices. Its wide geographical deployment makes it a key component of SM AirSeT. It has been designed to suit particularly applications such as: MV/LV transformer substations and industrial distribution substations. The materials used to manufacture this circuit breaker have been selected and designed to operate 10 000 cycles.

Vacuum interrupter

The heart of the circuit breaker

Vacuum interrupters are the heart of a medium voltage circuit breaker, SF6-free technology: its electrical performances highly depend upon the vacuum interrupter’s characteristics and quality. They must convey and break the rated normal current as well as the rated short circuit one for a number of times specified by the manufacturer.

Brand new design

Schneider Electric has been designing and producing its own vacuum interrupters for 45 years and carries a unique know-how in this field. For the EvoPacT circuit breaker, Schneider Electric has designed a brand new range of vacuum Interrupter, following the very robust process of development: "Model based system engineering". Specific and innovative solutions have been implemented: the VI shape, the contacts shape, the specific barriers to support ceramic protection, the petal shape of the radial magnetic field.

Strict quality controls

The production process includes a total vacuum inside the bottle, high temperature brazing, the use of "getter" material to absorb residual gas and a sealed enclosure. The "anti-twist" feature allows to mount the vacuum interrupter inside the pole of the breaker in an easy way while helping ensure expected performance of the VI. The new range of VI are then fully compliant with all the main breaker standards as GB/T 1984-2014, DL/T 402- 2016, IEC62271-100, IEEE C37.04-1999 and C37.06- 2009. 

Operating principle

Air and vacuum 3-position switch-disconnector Principle

The principle of the Shunt Vacuum Interruption (SVI) is executed by means of shunting the current through the vacuum interrupter while the disconnector is opening so that the current is interrupted in vacuum.

It is a compact, performing, and tested breaking device for load-break switches and switch-fuse combinations with:

• Breaking by vacuum interrupter.

• Disconnecting in air gap.

• Breaking and disconnecting in one operation as current SF6 3-position switch.

EcoStruxure™ Connected product Offer structure

Connected by default

Digitization provides an opportunity to take real benefits of data, cloud and analytics with power system equipment. Our latest SM AirSeT equipment offers extensive digital benefits and connectivity by default in the standard product.

• Ready for today and tomorrow, equipment has embedded IoT sensors to provide data to monitor critical components and connections, and the installation environment.

• Essential data can be easily shared via on-premises or on-cloud architectures, connected to various applications to help users benefit from data.

• Nearby or remote connectivity allows users to monitor or control power system equipment from a safer distance, without even visiting the substation

• 24/7 data helps maintenance teams greatly improve efficiency and reliability. Respond to problems faster, and be better prepared for site visits.

Not only connected by default, IoT data enables optional digital services, like EcoStruxure Asset Advisor. These services can give you smart alarms or data analytics that help you start your journey to predictive maintenance, efficient asset management and much more. 

Our SM AirSeT is bringing new functionalities and therefore new opportunities. In parallel, our customer needs are diverse and raise different expectations. For this reason, we have introduced 3 scalable tiers of connectivity to better meet your needs.

Edge and cloud connectivity comprise the optional software offers: -EcoStruxure Power SCADA -EcoStuxure Asset Advisor

Protecting the environment Schneider Electric is committed to a long term environmental approach.

Environmental performance

All necessary measures have been taken in conjunction with our services, suppliers and subcontractors to help ensure that the materials used in the composition of the equipment do not contain any substances prohibited by regulations and directives.

This has led to the development of SM AirSeT, which contains no SF6 gas and is insulated with air, together with vacuum breaking. This means no concerns about toxic byproducts and end-of-life gas recycling.