Distribution and transmission systems are constantly exposed to all kinds of power quality phenomena. Each of these phenomena can potentially damage this large and complex system. Damages to the equipment, reducing their lifespan and maintaining costs of permanent phenomena, every year imposes great costs to the network administrators. Damages to the power systems due to the power quality phenomena are:
Behrad Consulting Engineers Company background and experiences
Since 2003 BCE has been involved in the field of power quality studies and projects in various provinces of Iran. We own 12 power quality measurement devices from world famous brands at our disposal. Assessment of power quality indices, suggestions to fix problems and determining the origin of harmonic distortions and flicker in transmission, sub-transmission and distribution networks of Northern Khorasan, Razavi Khorasan, Southern Khorasan, Sistan and Baluchestan, Kermanshah, Ilam, Kordestan, Ardebil, Khuzestan, Isfahan, Hamedan, Tehran, Yazd, Lorestan, Markazi, East Azarbaijan, Gilan, Zanjan and Fars provinces are among the experiences of BCE. We Also have the bragging rights of preparing the five-year comprehensive power quality plan for Tehran Regional Electric Company in 2010, which can be considered the country's largest power quality project to date.
In particular, BCE's notable projects in some of Iran's provinces are:
The way we get the power quality studies done
Full knowledge of the network status, command of its strengths and weaknesses and identifying factors which distance the network from its ideal state are necessary for proper operation and control of the grid. To do this, it is necessary to use suitable network monitoring systems. Monitored indicators are compared with their required standard limits across the network, specifically at the energy exchange areas and at the Point of Common Coupling (PCC) for customers. Due to economic constraints and practical restrictions, it is necessary to optimize the selection of nodes in need of monitoring. By reviewing the existing network and assessing the clients, especially large industrial customers and selecting appropriate locations in accordance with limitations required by the employer, we install monitoring devices for a limited time to gather power quality indices of the network. We then compare the indices across the network, pinpoint the problematic parts of the grid and propose solutions for each of those problems.