Unit I: Introduction to Protection System:
Introduction to protection system and its elements, functions of protective relaying, protective zones, primary and backup protection, desirable qualities of protective relaying, basic terminology.
Relays:
Electromagnetic, attracted and induction type relays, thermal relay, gas actuated relay, design considerations of electromagnetic relay.
Unit-II: Relay Application and Characteristics:
Amplitude and phase comparators, over current relays, directional relays, distance relays, differential relay.
Static Relays: Comparison with electromagnetic relay, classification and their description, over current relays, directional relay, distance relays, differential relay.
Unit-III Protection of Transmission Line:
Over current protection, distance protection, pilot wire protection, carrier current protection, protection of bus, auto re-closing,
Unit-IV: Circuit Breaking:
Properties of arc, arc extinction theories, re-striking voltage transient, current chopping, resistance switching, capacitive current interruption, short line interruption, circuit breaker ratings.
Testing Of Circuit Breaker: Classification, testing station and equipments, testing procedure, direct and indirect testing.
Unit-V Apparatus Protection:
Protection of Transformer, generator and motor.
Circuit Breaker: Operating modes, selection of circuit breakers, constructional features and operation of Bulk Oil, Minimum Oil, Air Blast, SF6, Vacuum and d. c. circuit breakers.
Automatic voltaer regulator and it's modellingrajani51
in power supply system we have to keep the voltage constant.but when load is connected to the generator voltage difference will occur. to tackle this closed loop control of generator voltage is required. this can be achieved by AUTOMATIC VOLTAGE REGULATOR
Power factor improvement is the essence of any power sector for realible operations. This report provides literature study of a fixed capacitor thyristor controlled reactor type of power factor compensator by matlab simulation and implementation in programmed microcontroller. To retaining power factor closed to unity under various load condition the arduino ATmega8 microcontroller is used which is programmed by keil software. The simulation is done using proteus software which display power factor according to the variation in load whenever a capacitive load is connected to the transmission line, a shunt reactor is connected which injects lagging reactive VARs to the power system. This report also includes the matlab simulation for three phase power factor improvement by using fixed capacitor thyristor controlled reactor. As a
result the power factor is improved. The results given in this report provides
suitable matlab simulation and proteus simulation based reactor power compensation and power factor improvement and techniques using a FCTCR.
Unit I: Introduction to Protection System:
Introduction to protection system and its elements, functions of protective relaying, protective zones, primary and backup protection, desirable qualities of protective relaying, basic terminology.
Relays:
Electromagnetic, attracted and induction type relays, thermal relay, gas actuated relay, design considerations of electromagnetic relay.
Unit-II: Relay Application and Characteristics:
Amplitude and phase comparators, over current relays, directional relays, distance relays, differential relay.
Static Relays: Comparison with electromagnetic relay, classification and their description, over current relays, directional relay, distance relays, differential relay.
Unit-III Protection of Transmission Line:
Over current protection, distance protection, pilot wire protection, carrier current protection, protection of bus, auto re-closing,
Unit-IV: Circuit Breaking:
Properties of arc, arc extinction theories, re-striking voltage transient, current chopping, resistance switching, capacitive current interruption, short line interruption, circuit breaker ratings.
Testing Of Circuit Breaker: Classification, testing station and equipments, testing procedure, direct and indirect testing.
Unit-V Apparatus Protection:
Protection of Transformer, generator and motor.
Circuit Breaker: Operating modes, selection of circuit breakers, constructional features and operation of Bulk Oil, Minimum Oil, Air Blast, SF6, Vacuum and d. c. circuit breakers.
Automatic voltaer regulator and it's modellingrajani51
in power supply system we have to keep the voltage constant.but when load is connected to the generator voltage difference will occur. to tackle this closed loop control of generator voltage is required. this can be achieved by AUTOMATIC VOLTAGE REGULATOR
Power factor improvement is the essence of any power sector for realible operations. This report provides literature study of a fixed capacitor thyristor controlled reactor type of power factor compensator by matlab simulation and implementation in programmed microcontroller. To retaining power factor closed to unity under various load condition the arduino ATmega8 microcontroller is used which is programmed by keil software. The simulation is done using proteus software which display power factor according to the variation in load whenever a capacitive load is connected to the transmission line, a shunt reactor is connected which injects lagging reactive VARs to the power system. This report also includes the matlab simulation for three phase power factor improvement by using fixed capacitor thyristor controlled reactor. As a
result the power factor is improved. The results given in this report provides
suitable matlab simulation and proteus simulation based reactor power compensation and power factor improvement and techniques using a FCTCR.
Criterios de la primera y segunda derivadaYoverOlivares
Criterios de la primera derivada.
Criterios de la segunda derivada.
Función creciente y decreciente.
Puntos máximos y mínimos.
Puntos de inflexión.
3 Ejemplos para graficar funciones utilizando los criterios de la primera y segunda derivada.
Convocatoria de becas de Caja Ingenieros 2024 para cursar el Máster oficial de Ingeniería de Telecomunicacion o el Máster oficial de Ingeniería Informática de la UOC
Se denomina motor de corriente alterna a aquellos motores eléctricos que funcionan con alimentación eléctrica en corriente alterna. Un motor es una máquina motriz, esto es, un aparato que convierte una forma determinada de energía en energía mecánica de rotación o par.
libro conabilidad financiera, 5ta edicion.pdfMiriamAquino27
LIBRO DE CONTABILIDAD FINANCIERA, ESTE TE AYUDARA PARA EL AVANCE DE TU CARRERA EN LA CONTABILIDAD FINANCIERA.
SI ERES INGENIERO EN GESTION ESTE LIBRO TE AYUDARA A COMPRENDER MEJOR EL FUNCIONAMIENTO DE LA CONTABLIDAD FINANCIERA, EN AREAS ADMINISTRATIVAS ENLA CARREARA DE INGENERIA EN GESTION EMPRESARIAL, ESTE LIBRO FUE UTILIZADO PARA ALUMNOS DE SEGUNDO SEMESTRE
2. La recolección de energía es la captura y
conversión de pequeñas cantidades de energía
disponible en el ambiente en energía eléctrica
utilizable.
2
3. COMPONENTES DE UN SISTEMA
DE COSECHA DE ENERGÍA
Un dispositivo de conversión de energía.
Un módulo de cosecha de energía que captura, almacena y/o administra la
energía para el dispositivo.
Una aplicación final.
3
4. ¿QUÉ ES LA
RADIOFRECUENCIA?
Las ondas de radiofrecuencia (RF) se generan cuando una corriente alterna
pasa a través de un conductor.
Las ondas de radio son ondas electromagnéticas y viajan a la velocidad de
la luz en el espacio libre.
Las ondas electromagnéticas se componen de un campo eléctrico (“E”), y
un campo magnético (“H”).
La baja frecuencia utiliza la banda de 120-140 kilo Hertz.
4
5. COSECHA DE ENERGÍA
BASADA EN RF
La energía propagada en forma de radiofrecuencias
actualmente se emite por miles de millones de radio
transmisores alrededor del mundo, incluyendo teléfonos
móviles, radio portátiles, emisoras de radio y televisión, etc.
Esa energía emitida además de enviar o recibir
información también se puede aprovechar captándola
y así permitir cargar dispositivos de baja potencia.
5
7. La idea principal de la cosecha de energía por RF es convertir está energía
en corriente directa y que esta pueda ser usada para dispositivos de baja
potencia.
En esta disposición, una antena receptora de potencia de RF recoge la señal
de energía de RF y la transmite a un transductor de RF (powerharvester),
este convierte la señal de RF de baja frecuencia a una tensión continua de
5.25 v, capaz de entregar hasta 50 ma de corriente.
7
8. Una placa de evaluación del receptor Powerharvester P2110.
8
9. COMPONENTES ELECTRONICOS
CONVENIONALES
FUNCIONAN CON BATERIAS QUE
DEBEN CAMBIARSE CADA CIERTO
TIEMPO.
LOS REEMPLAZOS PUEDEN SER
COSTOSOS, POCO PRÁCTICOS Y
HASTA PELIGROSOS.
C.E. CON TECNOLOGÍA DE
COSECHA DE ENERGÍA
PROVEEN DE UNA VIDA ÚTIL
IIMITADA DE EQUIPOS DE BAJA
POTENCIA.
ELIMINAN EL REEMPLAZO Y USO
DE BATERÍAS.
SON AUTOSUSTENTABLES Y
RENTABLES.
LA POTENCIA SE USA CERCA DE
LA FUENTE, EVITANDO PÉRDIDAS
POR LA TRANSMISIÓN.
9
10. AUTOMATIZACIÓN DE EDIFICIOS
REDES INTELIGENTES
DEFENSA
MONITOREO INDUSTRIAL
ETC.
10