SAS POWERTECH PVT LTD

Baner, Pune, Maharashtra

In power system networks, protection must be designed so that protective relays isolate the faulted portion of the network, preventing equipment damage and operator injury, and ensuring minimal system disruption, allowing service to the healthy portion of the network to continue.
To achieve proper fault identification and fault clearance sequence, relay coordination is used. These relays must be able to distinguish between normal operating currents and short-term overcurrents caused by normal equipment operation, such as motor starting currents, transformer inrush currents, and sustained overcurrent caused by fault conditions. Power system relaying and overcurrent protection are concepts that are mutually dependent and contribute to the plant’s smooth operation. Protection coordination or protective device coordination research will include the calculation of protection relay settings as well as power system protection and switchgear such as MCB, Fuse, ACB, VCB, and so on.
As protection is a major concern in any industry, and they rely on protective devices for the same, a relay coordination study and analysis is performed to ensure that the system’s safety operations are functioning correctly and to avoid nuisance tripping. The cause of nuisance tripping is the modification of protective devices and their settings during maintenance without appropriate study and analysis.
A coordination study’s goal is to determine the characteristics, ratings, and settings of overcurrent protective devices that will ensure that the minimum unfaulty load is interrupted when protective devices isolate a fault or overload anywhere in the system. A coordination study should be carried out.

Electrical transients in power systems can occur from a variety of sources and have a negative impact on the equipment and reliability of the power system. It is best to be aware of potential sources in your facility and to take precautions against them.
Electrical transients are sudden and short-lived surges of energy induced in power or data and communication lines in a utility or any facility. They have extremely high voltages that drive large amounts of current in an electrical circuit for periods ranging from less than a microsecond to several milliseconds. As a result, the system transitions from a stable to a momentarily disturbed state and back again. The steady-state condition refers to the stable state that exists after the transient has passed.
Most electrical transients are not of great magnitude, but their impact on the performance of circuits and interrupting or protective devices is critical. Transients in power systems take the path of least resistance to ground and can cause circuit components and semiconductor devices to overheat, resulting in malfunction and failure. Furthermore, a significant number of these electrical transients are large enough to cause the insulation of the power system’s equipment to fail.
During a transient, the adverse conditions can be extremely damaging to power system protection equipment and switchgear. Their impact on devices varies according to the device and its location on the power system. As a result, power system engineers constantly devise methods and means to limit the magnitude of transients produced and control their effects on operating equipment.

Hospitals, corporate buildings, schools, and industrial or commercial facilities of all sizes rely on a consistent, dependable, and well-maintained electrical power system. Even minor electrical failures or faults can have disastrous consequences, such as extensive and costly downtime of company operations, damage to critical equipment or inventory in the event of a power outage, and the cost of locating and repairing the damaged electrical equipment itself.
Power systems used in commercial or industrial buildings are critical to the needs of those who work in and benefit from these structures. Building owners may request a power system study, also known as a power system analysis, to ensure the proper operation of a power system in both normal and unusual circumstances. These studies can be extremely useful in improving the overall operation and efficiency of any facility.
Electrical Power system analyses are an important part of the design of an electrical power system. Calculations and simulations are used to ensure that the electrical system, including system components, is properly specified to perform as intended, withstand expected stress, and be protected against failures.
An Electrical Power Study is an Arc Flash Study Pro Electrical System Analysis that includes any or all of the diagnostic or preventative services listed below. The studies listed below are the most important and necessary for you to get your electrical system properly installed and reliable. We may recommend a few additional types of electrical power diagnostic services after reviewing your facility and discussing your plans, but we can go over those later. The power studies below should cover the majority of the bases.
Multiple studies are conducted as part of a power system analysis to examine how a power system responds to various events over time. These engineering investigations are all compiled into a single final, comprehensive report for a complete power system analysis.
A power system analysis is typically classified as transient, dynamic, or static. Electrical Transient studies examine a very short time, usually 1 to 2 seconds. A dynamic study may yield results in just a few seconds or minutes. Static analysis examines the system over a longer period of time.
It is important to note that a full power system analysis does not usually occur all at once. Some aspects of a power system study may only need to be performed every 5 years or so, whereas others may require more frequent testing. You can consult with a professional to determine which aspects of a power system analysis may benefit your facility.

Service offering provided to plants having large Internal Electrical network or having Co-generation to understand the impact of electrical disturbances on internal distribution as well as on Grid. To identify the causes of these disturbances & solutions to ensure trouble free generation & supply of power.