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86 026 (0,484s)

Výsledek výzkumu

Central Protection Relay Model

Central Protection Relay Model is programmed in LabView. It is model which consists of four feeders and represents centralized way of protecting substation. IEC 61850-9-2 Sampled Values are imported and pr...

JE - Nejaderná energetika, spotřeba a užití energie

  • 2014
  • R
  • Odkaz
Výsledek výzkumu

Overcurrent Protection Relay Model Using IEC 61850-9-2 Sampled Values

protection relay model which is programmed in LabVIEW and it is the first part of programming a central protection relay model. protection relay. If settings of parameters are set wrong ...

JE - Nejaderná energetika, spotřeba a užití energie

  • 2014
  • D
Výsledek výzkumu

Smart-central

Smart-central is a device for wireless monitoring of Safety-cable and Safety-plug devices. If alarm occurs, output relay is switched on. Building security central can be connected to this relay. Function is backed ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2011
  • Gfunk
Výsledek výzkumu

LoRaWAN-based IoT protocol for three levels central protection scheme in MT-HVDC networks with ANFIS-PSO restoration algorithm

A new three-level adaptive central protection scheme has been introduced protection is based on a differential relay, while two backup protection levels are proposed: a local dv/dt under-voltage relay<...

Energy and fuels

  • 2023
  • Jimp
  • Odkaz
Výsledek výzkumu

Evaluation of Current Transformers and Protection Relay Circuit

to network and climate situation in the Central Europe. In case of protection relaysCurrent transformers (CTs) as same as protection relays are vital devices protection relays are presen...

Electrical and electronic engineering

  • 2020
  • D
  • Odkaz
Výsledek výzkumu

Verification of Characteristics of Selected Current Transformers and Protection Relays

and conditions of Central Europe. In the case of protection relays, works describingProtection circuits, specifically current transformers and protection relays described problems. Measurements a...

Electrical and electronic engineering

  • 2022
  • D
  • Odkaz
Výsledek výzkumu

Relay Characteristic of Lost Exitation Protection

The articel deals setting of impedance relay for loosing of synchronous machines exitation. There is a description of relay function and basic equation for relay chracteristic determinition....

JE - Nejaderná energetika, spotřeba a užití energie

  • 2005
  • Jx
Výsledek výzkumu

Effect of total harmonics distortion on distance and overcurrent relays

of the most used digital protection relays. This paper describes the basic theory of protection function with harmonic content. Harmonic signal can cause problems in power system and protection relays fun...

Energy and fuels

  • 2017
  • D
  • Odkaz
Výsledek výzkumu

Development of Overcurrent Protection Relay Model Using IEC 61850-9-2 Sampled Values

This document deals with the overcurrent protection relay model using sampled of relay model, which will be improved in next years. Developing overcurrent protection relay model using Sampled Values is par...

JE - Nejaderná energetika, spotřeba a užití energie

  • 2014
  • D
Výsledek výzkumu

Filter testing of protective relaying

The paper deals with the action statement, function description and validation testing of digital protective relaying input blocks. Testing results table of used digital filters are presented....

JE - Nejaderná energetika, spotřeba a užití energie

  • 2008
  • D
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