This research embodies the design, construction and simulation of a feeder pillar (415VAC) with over-current, overload and earth-fault protection with the aid of a phase sequence relay, contactor, earth-leakage circuit breaker and three-phase overload relay. The analog voltmeters in the various bus-bars (red, yellow and blue phases) in a conventional feeder pillar is replaced with a digital pan...

The electricity distribution breakdown can be caused the service life and operating frequency of Oil Dielectric Strength (ODS). Hence, it requires a study due to spare part is difficult find. This paper aims test ODS on Circuit Breaker (OCB) 13.8 kV aged between 29 43 years. used ASTM D1816 standard analyze effect oil circuit breaker physical, color strength ODS. For visual D1524 standard. base...

Multi-terminal flexible DC power grid plays an important role in large-scale new energy integration, which usually requires the installation of multi-terminal circuit breaker (MTCB) at intersection multiple lines. At present, research on is mostly limited to theoretical simulation calculation, and there are few experimental studies engineering applications. In this paper, a four-terminal based ...

This paper proposes a pulsed power generator which consists of two types of switched-capacitor booster modules. A doubling mode module employed to elevate the input voltage to a specified level and, constant mode module is used to increase the elevated voltage into the finally intended bipolar output voltage. Also, the proposed modular structure does not utilize any switches across the load. Ot...

Abstract  In his paper a new current-controlled conveyor (CCCII) in CMOS technology is presented. It features, low supply voltage (±0.7), low power consumption, low circuit complexity, rail to rail operation and wide range parasitic resistance ( ). The circuit has been successfully employed in a multifunction biquad filter. Simulation results by HSPICE show high performance of the circuit and c...

-With the connections between the safe operation and national economy development getting closer, the original scheduled maintenance has been unable to adapt to the current demand for electricity. The condition-based maintenance, which is an immediate and effective maintenance mode for supply equipment, achieves supply companies general concern. This paper aims at the existing problems in on-po...