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WELCOME ALL VISITORS ********ECCO Vision is to be at the forefront in providing the best, the latest and most appreciate consultancy services, training and studies in the field of Electricity and Communications ******** ECCO LIBRARY .********** NEW BOOKS IN POWER ******* NEW BOOKS IN CONTROL ******* NEW BOOKS IN COMMUNICATIONS*************POSTGRADUATE THESISES


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2020-08-13 05:01

ECCO provides practical and modern solutions attribute the creator and effective for services, productivity and contributes to the development of strategic status and their application.

Practical and modern solutions

Ecco provides the practical and modern solutions attribute the creator and effective for the services, productivity, oil organizations, and contributes to the development of strategic status and their application.


Specialized experts and engineers

Ecco provides its services through a selection of consultants, experts and engineers specialists in the field of electricity and communications putting all the potential scientific, practical experience, international relationships and strategic partners to serve its customers in the fields of electricity and communications.


ECCO can provide an electrical engineering services for design support for contractors on design/build projects. These services include design review, specification preparation, schematic and wiring diagrams, installation details, inspection of equipment and technical expertise for contract and litigation support.

ECCO is specializing in performing power system studies. Our highly experienced engineers and support staff always strive to give you the very highest quality of work. We use the Operational Technology “ETAP” program to perform our work.

ECCO have performed studies for all types of industries and applications. These experiences enlarge our perspective making us attune to the different needs of each phase from design to installation. Our expertise and depth of experience is fundamental when we conduct studies on existing and proposed electrical systems.

ECCO can perform an array of power system studies and services that will assist your organization in creating a safe and reliable environment when operating electrical distribution systems.POWER SYSTEM STUDIES AND ANALYSIS INCLUDE:

A low flow study calculates the currents, voltages and voltage drops, and phase angles for each bus in your system. This information is used to determine proper sizing of current carrying equipment, to identify overload devices, and to determine locations where power factor correction may be required.
Short Circuit Analysis is performed to determine the currents that flow in a power system under fault conditions. If the short circuit capacity of the system exceeds the capacity of the protective device, a dangerous situation exists. Since growth of a power system often results in increased available short-circuit current, the momentary and interrupting rating of new and existing equipment on the system must be checked to ensure the equipment can withstand the short-circuit energy. Fault contributions for utility sources, motors and generators are taken into consideration. The results of a Short Circuit Analysis are also used to selectively coordinate electrical protective devices.

Motor Starting Studies are performed on a power system to determine unusual consequences of starting a large motor. There are many considerations to starting a motor other than effectively connecting it to the line voltage. Nuisance tripping and excessive running currents, as well as dimming of lights, are signs that a power system isn’t performing properly. During starting, an AC induction motor or AC synchronous motor will draw greater-than-normal running current, typically about 600% of rated full-load current and will last as long, although diminishing in magnitude, as the motor goes to full speed. If a motor is started with a mechanical load connected to the shaft, inrush current will be drawn for a longer period of time. However, it will not be greater in magnitude than if the motor was started with no load. The power system should be able to supply inrush to any motor on the system while supplying normal service for the rest of the system. If the system does not have sufficient capacity, there will be excessively low voltage drops and insufficient capacity for motor starting.

Harmonic studies are performed to determine the effects of harmonic-producing devices (such as furnaces, large adjustable-speed devices, static VAR compensators and HVDC rectifiers) on other equipment in the system, to determined potential resonance issues. Harmonic studies are typically associated with the installation of capacitor banks or reactors, and for designing and evaluating the performance of harmonic filter banks.
Protective Device Coordination studies are performed to ensure that transformers, capacitor banks, electric motors and cables are protected against damage from short circuit currents. These studies are used to select appropriately rated protective devices and their settings. The objective is to minimize the impact of short circuits in the electrical system by isolating faults as quickly as possible, while maintaining power to the rest of the system. The rating and settings of protective devices recommended from the coordination study would represent an exercise of judgment as to the best balance of the two goals-protection and selectivity.


An arc flash is a current flowing through air that flashes from one exposed live conductor to another conductor or to ground. When an arc flash happens, the temperatures can reach up to 35,000 degrees Fahrenheit. This is four times the temperature on the surface of the sun. The result can be destruction of equipment, fire, and injury.


An arc flash occurs when electrical clearances are reduced or compromised by deteriorating insulation or human error. The arc flash follows a conductive path between two hot (energized) wires or between a hot wire and ground.


Without an arc flash study you will not know the actual level of danger or the appropriate personal protective equipment (PPE) required for employees. Electrical systems are dynamic and change over time. Internal changes, such as adding new equipment can affect the level of arc flash energy. A study must be updated every time the system changes. External changes, such as a utility changing transformers or changes at your utilityʼs closest sub-station can severely impact your level of arc flash energy.

Device evaluation is performed to determine which components do not exceed the necessary short circuit or load ratings they require based on the calculated values from the short circuit analysis or load flow analysis. An equipment evaluation study compares component short circuit ratings and continuous ratings with calculated short circuit and operating conditions. It is an extension of a short circuit study.

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