Smart electricity meter

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 POWER METER

Electricity meters are majorly deployed for segregating energy consumption in a building. In the Sub Metering system, these meters find their application in two major scenarios:

a) To separate the electricity usage of individual units within a building where obtaining separate meters from the power utility company is not feasible.

b) The electricity consumption of shared equipment like chillers, water booster pumps, boiler rooms, etc., should be identified from the communal electricity use of the building.

Power Meter

Other advantages of these meters include the measurement of energy consumption, voltage, as well as current. These capabilities give an entirely new dimension for electrical equipment management.

Moreover, such smart meters are fitted with an integrated disconnect relay in order to enable remote switching on or off of electricity supply if necessary.

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a) Separating Electricity Usage of Building Units

This approach is specifically adopted for those projects where it is impractical to obtain individual electricity connections from the relevant power utility. For instance: - Commercial buildings with a large number of consumers. - Projects that use power generation systems like CHP (Combined Heat and Power) or CCHP (Combined Cooling, Heating, and Power). This cabling infrastructure is considerably simpler and less costly to provide by utilizing smart meters for electricity. For example, the electricity can be distributed from the main electrical substation of the building to the distribution panels installed on each floor via a single central cable or bus duct. Sub-metering smart meters installed at the entrances of individual units then efficiently segregate the electricity.

از محاسن اجرای این سامانه می توان به موارد زیر اشاره کرد

ب) تفکیک برق چیلر ها، بوستر پمپ های آبرسانی، موتورخانه و …

یکی از کاربردهای سامانه انرژی میتر تفکیک مصارف برق مشاعات ساختمان بین واحدها بر مبنای مقدار دقیق مصرف است، بطور مثال مصرف برق چیلر تراکمی یا مصرف برق موتورخانه از آنجاییکه در بیشتر مواقع کنتور برق مشاعات (آسانسور، روشنایی و …) با بخش تاسیسات (موتورخانه، چیلر و …) مشترک می باشد به همین دلیل بایستی در ابتدا مقدار سهم مشاعات از تاسیسات تفکیک شده و سپس سهم تاسیسات را بر مبنای مصرف هر واحد بین مصرف کنندگان تقسیم نمود. به همین دلیل نیاز است تا برای بخش های مختلف تاسیسات مانند چیلرهای تراکمی، موتورخانه ویا بوستر پمپ های آب رسانی از کنتورهای تفکیکی هوشمند برق استفاده نمود.

نحوه تقسیم برق مشاعات بین واحدها را می توان به شکل زیر تعریف کرد :

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