With the increase in demand for electrical power, the utility network is getting expansion to supply uninterrupted power to the consumers. To maintain the system stability and reliability it is necessary to have a protective system that operates as quickly as possible, isolates the smallest part of the system under fault. In order to have proper protection of electrical network, one needs to have a proper protection scheme and coordination of protective device to isolate the faulty section from a healthy section.
When two protective apparatus installed serial have certain characteristics, which give a specified operating sequence, they're said to be coordinated or selective. The objective of protective relay coordination is to achieve selectivity without loosening sensitivity and quick fault clearance time. Relay coordination is a crucial aspect within the protection system design as coordination schemes must guarantee fast, selective, and reliable relay operation to isolate the electrical power system faulted sections.
Adequate system grounding method, appropriate selectivity of protective relays, and validation of protection scheme and relay settings are included in protection analysis. Evaluation of settings of protective devices used for over current and earth fault protection in order to adequately protect the system against short-circuit and overload, optimize discrimination between fault and abnormalities and set proper time grading and selectivity of the curve are part of relying on coordination study.
In many process industries, chemical plants, cement plants, oil-gas industries, data centers, and other industries where power reliability is the most important thing and its failures can affect the production loss and even to avoid any severe damage to the equipment can also take costly downtime and a huge loss in terms of economically. Relay coordination plays a vital role in the power system, to avoid any severe damage to the equipment and to avoid any inadvertent tripping during the operation of equipment.
It is recommended to have relay coordination of the entire plant if the following events are expected:
We Provide different power system analysis services which are listed below:
We manage free training on operation, power system study with simulation software for your engineering staff to aware such incidentdue to improper selection, settings of relay, malfunctioning of circuit breakers in your plant.
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We have completed relay coordination& system studies in many process, chemical, steel casting, cement plants and have expert engineers who knows the engineering physics as we as different industries standard regulations.
