Results 111 to 120 of about 7,540 (299)

Influence of Current Transformer Saturation on Operation of Current Protection

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2010
An analysis of the influence of instrument current transformer errors on operation of current protection of power supply diagram elements has been carried out in the paper.
F. A. Romaniouk   +5 more
doaj  

Protecting power transformers

open access: yes, 2010
Aussi disponible en français: Protection des transformateurs ...
openaire   +1 more source

Power transformer protection – an outline

open access: yesTransformers Magazine, 2014
Power transformers are used in High Voltage (HV) / Extra High Voltage (EHV) / Ultra High Voltage (UHV) systems as they transfer a huge amount of power to the customers but the volume of vulnerability and damage is also huge and destructive. Therefore, in order to avoid such destruction and loss, protective devices are used with different protection ...
openaire   +2 more sources

Differential Protection of Power Transformer in Substation

open access: yes, 2019
Protection scheme required for the protection of power system components against abnormal conditions such as faults etc., and that essentially consists of protective relaying and circuit breaker. Protective relay senses the fault and determines the location of fault. Then, protective relay sends the tripping command to the circuit breaker.
Thida Win   +2 more
openaire   +2 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

Distribution transformer : Monitoring & protection

open access: yes, 2015
The basic aim of our project is to protect the transformer against internal faults and ensuring\ud security of the protection scheme for external faults.
Swamy, Sameep   +5 more
core  

Protection for 2500KVA High Tension Transformer

open access: yes, 2020
: High tension transformers are critical and expensive components of the power system. These transformers play an important role in power delivery and integrity of the power system network.

core  

A Novel Self-Protective Transformer Using a Fault Current Limiter Approach

open access: yesIEEE Access
Transformers are essential components of distribution systems but are vulnerable to fault currents, posing significant challenges for their protection.
Sajjad Agheli   +2 more
doaj   +1 more source

Discrimination Between Inrush and Short Circuit Currents in Differential Protection of Power Transformer Based on Correlation Method Using the Wavelet Transform [PDF]

open access: yesIranica Journal of Energy and Environment, 2011
This paper presents a novel technique for transformer differential protection to prevent incorrect operation due to inrush current. The proposed method in this paper is based on time-frequency transform known as the Wavelet transform.
M. Rasoulpoor, M. Banejad, A. Ahmadyfard
doaj  

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