With the growing population, the demand of electricity is also increasing. Besides domestic requirements, high-voltage electricity whether formed from atomic, thermal or hydro power are in high demand in the industrial as well as the commercial sectors. Because of the massive demands, the transformer such as the dry-type or the substation transformer are installed for receiving a constant flow of high-voltage electricity.
Know about the maintenance and Tests of Substation transformers—
The significance of annual maintenance
Maintaining the transformers is mandatory on a regular basis for availing the constant flow of electricity. Though the dry-type transformers are prone to corrosion yet they manage to ensure longevity even after a little maintenance. But the substation transformers are liquid-based for which they demands proper maintenance along with the checking of oils and fluids necessary for the running the operations without causing any interruption.
Several stages of tests are essential to meet the performance requirements. Here, some of the tests are discussed—
To measure the dialectic strength of the transformer, the fluids inside the device are supposed to be inspected. Because of extreme temperature, the insulation potential of the fluids is reduced. That’s why from the bottom of the tank, the oil strength must be checked for easing the performance of the substation transformer.
TTR or the Transformer Turns Ratio is another significant test that helps in testing the ration in between the high and low voltage to let you know about how the unit is increasing or decreasing the voltage per expectations.
The insulation damage can be detected by the Winding resistance test. This is a common reason for the failure of the transformer. Between the bushings the winding resistance test is performed to figure out the exact damages caused in the system.
For analyzing the IR or the Insulation Resistance and Dielectric Frequency Response (DFR), the portable test equipments are mainly used. The test also inspects the moisture content, tan dissipation, oil conductivity, high-interference sites etc. issues in the transformer.
Tests like the Infrared Thermography is processed to pin point the leaks, extreme heat, other troublemaking points etc.
Other significant things that are checked during the maintenance procedure are the control wires, nameplates, gauges, gaskets, tanks, connections, terminals etc.
Regular maintenance of the substations, local substations, individual transformers, and the greater power grids are mandatory for easing the performance of the transformer. Connect with a reliable company assuring similar services.
