this paper is concerned with development of a technique for performance prediction of current transformers (ct), accurately. in this technique, a new optimized model from view-point of both computation time and memory is introduced in order to simulate the current transformers on digital computers. the introduced software in this paper in combination with relay tester equipments can be used ins...

There is a global trend towards the increase of the number of users connected to the network via mobile devices which, consequently, will create an increasing demand for information, applications and content for such equipments. New ways to use existing aplicações are emerging. In particular, systems that were once accessed via web interfaces through personal computers physically located in off...

Lightning protection for power supply of electronic equipment is an important problem of low-voltage lightning protection systems. In this paper, lightning characteristics of electronic equipment’s power supply are studied. Firstly impulse generator is developed. Then lightning characteristics tests for different powersupply, such as switch model power supply, are done. Test results show: diffe...

Power transformers are among the most important and expensive equipments in the electric power systems. Consequently the transformer protection is an essential part of the system protection. This paper presents a new method for locating transformer winding faults such as turn-to-turn, turn-to-core, turn-totransformer body, turn-to-earth, and high voltage winding to low voltage winding. In this ...

Aiming to the defect of expandability and reliability of Li-Ion battery of protection circuit, the multisection series connection Li-ion battery management system was designed based on X3100 chip. The hardware and software design of the system was elaborated. The system can realize the measure, management and auto-protection for various parameters and complete the calculation for tens of comman...

Along with the extensive prevalence of the network and the portable equipments, people can access network resources conveniently. The protection of participants’ privacy and data confidentiality is significant. Authentication mechanism is essential to assure the authenticity of all participants and forbid the illegal accessing. In this paper, we propose a robust remote authentication scheme wit...

This paper is concerned with development of a technique for performance prediction of current transformers (CT), accurately. In this technique, a new optimized model from view-point of both computation time and memory is introduced in order to simulate the current transformers on digital computers. The introduced software in this paper in combination with relay tester equipments can be used ins...