Results 51 to 60 of about 41,086 (208)

The simulation of a twelve pulse diode rectifier with saturable reactors [PDF]

open access: yes, 2004
A twelve pulse diode rectifier with saturable reactors to allow a degree of phase control is simulated using mathematical software. First order differential equations are solved numerically to allow calculation of line current.
King, I.G, Moore, P.J.
core  

Solid-State Transformers for Interfacing Solar Panels to the Power Grid: An Optimum Design Methodology of a High Frequency Transformer for dc-dc Converter Applications [PDF]

open access: yes, 2016
Nowadays the use of power electronic interfaces to integrate distributed generation with the power grid is becoming relevant due to the increased penetration of renewable energy sources like solar, and the continued ...
George, Kenny
core   +2 more sources

Performance Problems of Non-Toroidal Shaped Current Transformers

open access: yesSensors, 2020
Nowadays, non-toroidal shape primary pass-through current transformers are commonly used for large current machines with several cables per phase. As these transformers exhibit no radial symmetry, it is not clear if they can be tested using the indirect ...
Carlos A. Platero   +4 more
doaj   +1 more source

Base drive for paralleled inverter systems [PDF]

open access: yes, 1980
In a paralleled inverter system, a positive feedback current derived from the total current from all of the modules of the inverter system is applied to the base drive of each of the power transistors of all modules, thereby to provide all modules ...
Nagano, S.
core   +1 more source

Apparatus for measuring current flow Patent [PDF]

open access: yes, 1969
Electric current measuring apparatus design including saturable core transformer and energy storage device to avoid magnetizing current errors from transformer output ...
Paulkovich, J.
core   +1 more source

Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers

open access: yesThe Journal of Engineering
Frequency response analysis is widely used for the offline diagnosis of winding deformations in power transformers. To apply this approach to a working transformer, the magnitude of the response current needs to be measured by using Rogowski coil sensors
Yangchun Cheng   +4 more
doaj   +1 more source

A Dual Deep Neural Network Approach for Discriminating Internal Faults and Inrush Currents in Transformers Under CT Saturation

open access: yesIEEE Access
The dependability and security of transformer differential protection can be compromised by current transformer (CT) saturation, which distorts current measurements and may lead to the maloperation of protective relays.
Sopheap Key   +4 more
doaj   +1 more source

CORRECTION OF THE HIGH-FREQUENCY TRANSFORMER ASYMMETRY OF UNDISTURBED POWER SUPPLY OF LIMITED POWER [PDF]

open access: yes, 2018
Study the possibilities to adjust asymmetry of the high frequency transformer as a component of an undisturbed power supply ...
BORODAI, Valery   +13 more
core  

Smart Sensor System Application: An Integrated Compass [PDF]

open access: yes, 1997
A fully integrable electronic compass has been designed based on the pulse position method, using micro-machined fluxgate magnetic sensors. The compass has been designed to have an accuracy of one degree.
Diemel, Guido   +2 more
core   +6 more sources

Current transformer saturation detection by cross-correlation with independent target signal

open access: yesAin Shams Engineering Journal
The saturation of current transformers (CTs) leads to distortion in secondary current, potentially causing malfunction in protective relays within power systems.
Mahmoud M. Elgamasy   +3 more
doaj   +1 more source

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