Distribution transformers is one of the main component in electrical distribution system to customer. This transformers is used to change the input of the transformers from 20 KV to 220 Volt. Distribution transformers often has disruption, and if it is not fixed soon, it will damage transformers and fire it. One of the parameter that indicate disruption in transformers is enhancement of current...

When defining a scheme of a web application, modelers repeatedly perform modelling tasks like “after having defined an entity type, add a page class for displaying the entity type’s content”. Thereby, a scheme is extended again and again in a similar manner. For such recurrent tasks, it would be convenient for modelers to have web scheme transformers (short transformers) that, when applied to a...

In this paper, multilayered coreless printed circuit board (PCB) step-down power transformers for DC-DC converter applications have been designed, manufactured and evaluated. A set of two different circular spiral step-down transformers were fabricated in the four layered PCB. These transformers have been modelled with the assistance of high frequency equivalent circuit and characterized with b...

The second generation of Very-High Speed Digital Subscriber Lines (VDSL2) represents a modern high-speed solution for present last-mile access networks. However, the transmission performance of VDSL2 lines is heavily dependent on the real conditions of symmetrical pairs and quads in local metallic lines and cables. One of the frequent elements in metallic access networks, which can negatively i...

background and aims. triple antibiotic paste (tap) is widely used in endodontics for root canal disinfection, particularly in regenerative procedures. the aim of this in vitro study was to evaluate the antimicrobial effects of different concentrations of tap at 1-, 2-, 3-, and 4-week intervals on mature enterococcus faecalis biofilm. materials and methods. a total of 287 extracted one-rooted hu...

Non-flammable characteristic of dry-type castresin transformers make them suitable for residential and hospital usages. However, because of resin’s property, thermal behavior of these transformers is undesirable, so it is important to analyze their thermal behavior. Temperature distribution of cast-resin transformers is mathematically modeled in this paper. The solution of the model was carried...

Condition monitoring of power transformers improves the reliability and the safety of an electrical power network. It protects the transformers from failures, and avoids huge revenue loss to utilities and customers. The health status of transformers is decided by several influencing factors. An accurate health assessment of transformers has been a challenging task for the researchers as well as...

Prediction of the remaining life of high-voltage power transformers is an important issue for energy companies because of the need for planning maintenance and capital expenditures. Lifetime data for such transformers are complicated because transformer lifetimes can extend over many decades and transformer designs and manufacturing practices have evolved. We were asked to develop statistically...

conclusions open gastrostomy was successfully performed under subcostal tap block with small dose fentanyl supplementation. the subcostal tap block is considered a useful anesthetic choice in surgery for high risk patients. introduction many papers have reported that tap block provides effective postoperative analgesia, but the sole use of tap block for surgical anesthesia has been rarely repor...

Estimating the final price of products is of great importance. For manufacturing companies proposing a final price is only possible after the design process over. These companies propose an approximate initial price of the required products to the customers for which some of time and money is required. Here using the existing data of already designed transformers and utilizing the bayesian anal...