Realizacija besprekidnog napajanja komandno-upravljačkog centra u sistemu OOiU

2021 ◽  
Vol 23 (2) ◽  
pp. 64-72
Author(s):  
Marko Tajdić ◽  
◽  
Željko Despotović ◽  
Jovan Kon ◽  
Keyword(s):  
Power Supply ◽  
Warning System ◽  
Practical Implementation ◽  
Entire System ◽  
Uninterruptible Power Supply ◽  
Control Center ◽  
Fast Switching ◽  
Autonomous Operation ◽  
The Republic ◽  
Uninterruptible Power

The emergency and notification warning system has the task to, in accordance with legal regulations, rules and observances, perform all necessary measures in order to monitoring, inform, and if necessary, partial or general public alerting of the population in the endangered area. The emergency and notification warning system, which is, among other things, very important for the Emergency management sector of the Republic Serbia, is managed from the command-control center. The importance of this system is evidenced by the fact that it has data transmission on two transmission paths (WiFi and UHF). Based on the above, it follows that it is very important to ensure robust, reliable and uninterrupted operation of the CCC and thus the smooth operation of the emergency and notification warning system. Uninterruptible power supply (UPS) plays a significant role in ensuring reliable, uninterrupted and autonomous operation of the entire system. The role of BPN is very important, because in case of loss of mains power 230 V, 50 Hz, it should take over the power supply of the system. The control system should provide a very fast switching (switching time ≤10 ms) to the backup power supply without interruption and voltage failure of the entire system. When working on a battery bank, the autonomy of the designed system in the absence of mains power is 48 hours. The paper will present the practical implementation of such a system, as well as the experimental results obtained during the operational commissioning of the UPS system. The solution is in use in the CCC-Valjevo of the emergency and notification warning system, starting from June 30, 2020.

scholarly journals THE COLLECTION OF INFORMATION CONTROL CENTER

2019 ◽  
Vol 22 (6) ◽  
pp. 136-142 ◽  
Author(s):  
E. S. Maklakov ◽  
A. A. Gulamov
Keyword(s):  
Optical Fibers ◽  
Power Supply ◽  
Information Exchange ◽  
Communication Channels ◽  
Information Control ◽  
Uninterruptible Power Supply ◽  
Control Center ◽  
Voice Transmission ◽  
Uninterruptible Power ◽  
Different Sources

Consider the option of building the last miles to telecom operators, in accordance with the requirements for the construction of the last miles of control centers in the power industry. A variant is proposed for constructing a typical network node of the last miles of the control center, taking into account all the necessary interfaces for the transmission of dispatch telephone communication channels, telemetry information transmission channels, as well as service communication channels and information exchange between electric power entities and dispatch centers. A variant of the construction and topology of the last miles of the control center, methods of reservation of channels to access nodes are described. All types and types of interfaces that are necessary to use for the organization of dispatch communication channels and the transmission of telemetric information in the dispatch centers of the regional level have been determined. The use of various types of interfaces for service purposes is described in detail. Separate types of interfaces are used for voice transmission and for dispatch communication channels with objects. The variants of using analog interfaces for transmitting telemetry information via corresponding communication channels, which are used for cent equipment with analog outputs, are described. There are several types of redundancy of communication channels to ensure uninterrupted operation of the control center and to exclude the possibility of disabling the main and backup channels at the same time when working with a particular object. The redundancy of the hardware is carried out by installing additional cards in the equipment of the nodes in the cold reserve. Power redundancy is carried out due to the presence of at least two power supply units of the equipment for connection from two different sources of the uninterruptible power supply system. There is a reserve for the optical fibers of the last miles to the access nodes, which in turn allows you to change the transport transmission line in case of failure of the current one.

scholarly journals Uninterruptible Power Supply Improves Precision and External Validity of Telomere Length Measurement via qPCR

2020 ◽  
Vol 1 ◽  
Author(s):  
Waylon J. Hastings ◽  
Dan T.A. Eisenberg ◽  
Idan Shalev
Keyword(s):  
Telomere Length ◽  
Power Supply ◽  
External Validity ◽  
High Performance ◽  
Epidemiological Studies ◽  
Storage Conditions ◽  
Amplification Efficiency ◽  
Uninterruptible Power Supply ◽  
Uninterruptible Power ◽  
The Impact

Abstract Technical challenges associated with telomere length (TL) measurements have prompted concerns regarding their utility as a biomarker of aging. Several factors influence TL assessment via qPCR, the most common measurement method in epidemiological studies, including storage conditions and DNA extraction method. Here, we tested the impact of power supply during the qPCR assay. Momentary fluctuations in power can affect the functioning of high-performance electronics, including real-time thermocyclers. We investigated if mitigating these fluctuations by using an uninterruptible power supply (UPS) influenced TL assessment via qPCR. Samples run with a UPS had significantly lower standard deviation (p < 0.001) and coefficient of variation (p < 0.001) across technical replicates than those run without a UPS. UPS usage also improved exponential amplification efficiency at the replicate, sample, and plate levels. Together these improvements translated to increased performance across metrics of external validity including correlation with age, within-person correlation across tissues, and correlation between parents and offspring.

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