At Ecolog we are aiming to redefine the boundaries of what is possible today in a wide range of applications from predictive analytics, energy distribution, asset surveillance all the way to connected and autonomous mobility. In a world of interconnectivity and integration on the one hand and rising complexities and conflicts, on the other hand, protecting critical infrastructure in defence and energy sectors are of paramount importance to the nations. At Ecolog we work tirelessly to ensure offering end to end solutions to our clients and customers. In doing so we also rely on world-leading strategic partners. We provide best Cybersecurity services in Egypt to know more details visit our website.
At Ecolog we are aiming to redefine the boundaries of what is possible today in a wide range of applications from predictive analytics, energy distribution, asset surveillance all the way to connected and autonomous mobility.
In a world of interconnectivity and integration on the one hand and rising complexities and conflicts, on the other hand, protecting critical infrastructure in defense and energy sectors is of paramount importance to the nations.
Our global solution center is intended to provide the Cyber Security Services and solutions to defense and humanitarian sectors as well as logistics and commercial markets.
Utilizing our strategic partner – Mireo’s – innovative SPACE-TIME™ Cluster that is capable of instantly storing and analyzing petabytes of space, time and sensor data, we intend to provide a comprehensive range of digital solutions in urban mobility, intelligent logistics, predictive analytics, and maintenance, as well as advanced AI algorithm optimization.
At Ecolog we work tirelessly to ensure offering end to end solutions to our clients and customers.
In doing so we also rely on world-leading strategic partners.
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Circuit typesDistribution channelThe sizing of the cable trays and devices follows the maximum load currents expected at this level of energy distribution systems.As a rule:je b max = Capacity installed capacity x simultaneity factorThe switching/protection device and the connection line must be suitable with regard to overload and short-circuit protection.In order to ensure protection against overloads, the standard conventional non-tripping currents relating to the devices used must be observed.
A check based solely on the rated current of the device or the setting value I r would be insufficient.energy distribution systemsBasic rules for ensuring overload protection:Current rule notedNon-adjustable protective equipmenti b ≤ I n ≤ I zThe nominal current je n of the selected device must be between the calculated maximum load current je b and the maximum admissible load current je z of the selected transmission medium ( cable or busbar ).Adjustable protective geari b ≤ I r ≤ I zThe rated current i r of the overload release must be between the calculated maximum load current i b and the maximum allowable load current i z of the selected transmission medium ( cable or busbar ).Triggering the current rulei 2 ≤ 1.45 x I zThe maximum allowable load current i z of the selected transmission medium ( cable or busbar ) must be greater than the conventional tripping current i 2 – / 1.45 of the selected device.The test value i 2 is standardized and varies depending on the type and characteristics of the protective equipment used.Basic rules for ensuring short-circuit protection:Short circuit energyK 2 S 2 ≥ I 2 t( K = Material coefficient; S = Cross-section)The amount of energy released when a short circuit occurs – and until it is automatically eliminated – must be less than the energy that the transmission medium can carry to the maximum otherwise irreparable damage will be caused.
As a rule, this basic rule applies in the time range up to max.
5 sec.Below 100 ms short-circuit breaking time, the passing energy of the protective device ( according to the specifications of the equipment manufacturer ) must be taken into account.When devices with a tripping unit are used, compliance with this rule over the entire characteristic curve of the device must be verified.
A simple check in the range of the maximum applied to short-circuit current ( i k max ) is not always sufficient, especially when delayed releases are used.Short circuit timet a (JE k min ) ≤ 5 sThe cut-off time resulting from the selected protective equipment must ensure that the calculated minimum short-circuit current i k min at the end of the transmission line or protected line is automatically cleared within 5 s at most.Overload and short-circuit protection need not necessarily be provided by one and the same device.
Typically, devices applied at the end of a cable tray can only provide overload protection.Final circuitsThe method for coordinating overload and short circuit protection is virtually identical for energy distribution systems and final circuits.
