1) O documento descreve disjuntores 3VT da Siemens para proteção de instalações elétricas de baixa tensão.
2) Os disjuntores vêm em diferentes tamanhos e capacidades de corrente nominal de 16A a 1600A.
3) O documento fornece detalhes técnicos sobre as especificações, componentes, acessórios e tabelas de escolha dos disjuntores.
AC Circuit Breakers Routine Tests according to IEC 62271-100Ali Sepehri
AC Circuit Breakers Routine Tests according to IEC 62271-100
Article direct link: https://www.linkedin.com/pulse/ac-circuit-breakers-routine-tests-according-iec-ali-sepehri/
This document provides information about the design and components of a 220kV switchyard. It discusses:
1. The double main bus with transfer bus scheme used, which has two main buses (Bus-1 and Bus-2) and one transfer bus for maintenance.
2. The key equipment used including circuit breakers, current transformers, capacitor voltage transformers, isolators, lightning arresters, and insulators.
3. The testing procedures for current transformers, which include insulation resistance testing, polarity testing, excitation testing, ratio testing, and winding resistance testing.
The document outlines lessons learned from electrical construction issues at the Waste Treatment Plant project. It discusses implementing enhanced supplier inspections and NEC code compliance inspections for temporary power installations. It also covers improving electrical design compliance through code training, procuring medium voltage equipment and training, and enhancing lockout/tagout procedures to meet operational safety standards. The overall goal is to apply these lessons to improve electrical safety and performance at the Waste Treatment Plant.
The following topics are covered: components of power distribution systems, fuses, padmounted transformers, pole mounted transformers, vault installed transformers, transformer stations protection, transformer connections, thermometers, pressure relief devices, restricted ground faults, differential protection current transformers connections, overexcitation, inrush current, percentage differential relays, gas relays, characteristics of CTs.
The document discusses the main equipment used in 400kV power transmission and distribution substations. It describes some of the key components including transformers, switchgear, isolators, circuit breakers, wave traps, and current transformers. Switchgear is explained in more detail, noting that it is used to control, protect, and isolate electrical equipment by de-energizing circuits for work and clearing faults downstream, improving the reliability of the power supply. The 400kV substation in Bareilly, India is also briefly outlined, including its division into 400kV, 220kV, and 33kV sections served by a common control room.
The document discusses Tan Delta testing of medium voltage cables. It provides basics on cable insulation aging processes, defines Tan Delta as a measurement of the ratio of resistive to capacitive current in a cable, and explains that increasing Tan Delta values indicate worsening cable insulation condition. The document also outlines test parameters, how to interpret results based on IEEE criteria, and how to perform a Tan Delta test.
O documento apresenta os resultados das medições de resistência de aterramento realizadas em pontos da malha geral de aterramento de uma fábrica de papel e celulose. As medições atestaram que a malha possui baixa resistência de aterramento nos pontos avaliados, dentro dos limites estabelecidos pelas normas aplicáveis, embora algumas caixas de inspeção apresentem necessidade de manutenção.
This document discusses voltage testing and partial discharge measurement techniques for power cable accessories. It provides:
1) An overview of the objective to compare cable testing best practices and determine cable defects using partial discharge methods.
2) A description of an ACRF test system used, including its components like an HV reactor, control unit, and voltage divider.
3) Details on partial discharge measurement methods like using high frequency current transformers and coupling capacitors to detect discharges in cables.
4) The conclusion that resonant testing between 20-300Hz along with partial discharge detection reduces risks from cable systems after installation by locating faults.
AC Circuit Breakers Routine Tests according to IEC 62271-100Ali Sepehri
AC Circuit Breakers Routine Tests according to IEC 62271-100
Article direct link: https://www.linkedin.com/pulse/ac-circuit-breakers-routine-tests-according-iec-ali-sepehri/
This document provides information about the design and components of a 220kV switchyard. It discusses:
1. The double main bus with transfer bus scheme used, which has two main buses (Bus-1 and Bus-2) and one transfer bus for maintenance.
2. The key equipment used including circuit breakers, current transformers, capacitor voltage transformers, isolators, lightning arresters, and insulators.
3. The testing procedures for current transformers, which include insulation resistance testing, polarity testing, excitation testing, ratio testing, and winding resistance testing.
The document outlines lessons learned from electrical construction issues at the Waste Treatment Plant project. It discusses implementing enhanced supplier inspections and NEC code compliance inspections for temporary power installations. It also covers improving electrical design compliance through code training, procuring medium voltage equipment and training, and enhancing lockout/tagout procedures to meet operational safety standards. The overall goal is to apply these lessons to improve electrical safety and performance at the Waste Treatment Plant.
The following topics are covered: components of power distribution systems, fuses, padmounted transformers, pole mounted transformers, vault installed transformers, transformer stations protection, transformer connections, thermometers, pressure relief devices, restricted ground faults, differential protection current transformers connections, overexcitation, inrush current, percentage differential relays, gas relays, characteristics of CTs.
The document discusses the main equipment used in 400kV power transmission and distribution substations. It describes some of the key components including transformers, switchgear, isolators, circuit breakers, wave traps, and current transformers. Switchgear is explained in more detail, noting that it is used to control, protect, and isolate electrical equipment by de-energizing circuits for work and clearing faults downstream, improving the reliability of the power supply. The 400kV substation in Bareilly, India is also briefly outlined, including its division into 400kV, 220kV, and 33kV sections served by a common control room.
The document discusses Tan Delta testing of medium voltage cables. It provides basics on cable insulation aging processes, defines Tan Delta as a measurement of the ratio of resistive to capacitive current in a cable, and explains that increasing Tan Delta values indicate worsening cable insulation condition. The document also outlines test parameters, how to interpret results based on IEEE criteria, and how to perform a Tan Delta test.
O documento apresenta os resultados das medições de resistência de aterramento realizadas em pontos da malha geral de aterramento de uma fábrica de papel e celulose. As medições atestaram que a malha possui baixa resistência de aterramento nos pontos avaliados, dentro dos limites estabelecidos pelas normas aplicáveis, embora algumas caixas de inspeção apresentem necessidade de manutenção.
This document discusses voltage testing and partial discharge measurement techniques for power cable accessories. It provides:
1) An overview of the objective to compare cable testing best practices and determine cable defects using partial discharge methods.
2) A description of an ACRF test system used, including its components like an HV reactor, control unit, and voltage divider.
3) Details on partial discharge measurement methods like using high frequency current transformers and coupling capacitors to detect discharges in cables.
4) The conclusion that resonant testing between 20-300Hz along with partial discharge detection reduces risks from cable systems after installation by locating faults.
The RTCC (Remote Tap Changer Control) panel controls the output voltage of a transformer through an OLTC (On Load Tap Changer) unit using control cables. The RTCC contains an AVR (Automatic Voltage Regulator) that maintains the output voltage at a set reference level by signaling the OLTC to adjust its tap position accordingly. The RTCC can operate in automatic mode, where the AVR controls the voltage, or manual mode, where an operator can raise or lower the voltage using buttons. The OLTC itself is located inside the transformer and changes tap positions to adjust the output voltage through a motorized mechanism that is controlled by the RTCC.
Testing and Condition Monitoring of Substation EquipmentsSumeet Ratnawat
Testing and condition monitoring of substation equipments,Transformer specifications,Monitoring of Transformer,On-load Tap changer,Overhauling,Tan delta and capacitance,Thermal imaging,Sweep frequency response analysis,Oil analysis of Switchgear elements containing oil,tests on insulating oil,Breaker monitoring,Condition monitoring of CT,Condition monitoring of CVT,Surge Arresters,Condition monitoring of relays.
The document discusses busbar protection, including the need for busbar protection, types of busbar protections like high impedance, medium impedance and low impedance protections. It describes the requirements of busbar protection like short tripping time and stable operation during external faults. The document discusses different busbar arrangements and applications of numerical busbar protection systems like RADSS. It provides examples of busbar protection schemes for different bus configurations. The document also includes excerpts from technical manuals providing recommendations on busbar protection in substations.
The document is a presentation on the Liluah 132/33/25 KV substation in West Bengal. It includes acknowledgments, a single line diagram of the substation, and sections covering various equipment found at the substation like electrical busbars, protective relay schemes, lightning protection, isolators, capacitor banks, powerline carrier communication, batteries, earth transformers, traction transformers, station service transformers, and power transformers. Technical specifications are provided for some of the major equipment.
The document describes the Alstom Grid Technical Institute, which provides technical training on electrical substation and network equipment. It has 19 training institutes located at factory sites that offer over 200 technical topics. Training is delivered through both classroom and online "tutored e-learning" methods. A variety of course lengths and topics are available, covering electrical safety, gas handling, network management, and equipment maintenance. Certification is provided upon completion of courses to validate skill levels.
This document provides information about transformer tests conducted at BEST Balıkesir Transformer Factory laboratories. It describes routine tests like winding resistance measurement, voltage ratio measurement and phase checking, as well as type tests and special tests. The routine tests section explains test procedures and equipment for various tests done on all transformers produced. These include impedance measurement, no-load loss tests, and tap changer tests. Type and special tests involve temperature rise testing, lightning impulse testing, and other advanced analyses. Laboratory equipment for performing over a dozen transformer tests is also listed.
1. Selective coordination requires coordination between protective devices like circuit breakers from the utility source down to final subcircuits in order to isolate faults only to the protective device closest to the fault location.
2. Ground fault protection on feeders is required by NEC to provide an additional level of ground fault protection downstream from the service entrance with a minimum 6 cycle separation between service and feeder tripping bands to maintain selectivity.
3. While systems must be designed to withstand bolted faults, the majority of real-world faults will be arcing type faults which limit available fault current, making selective coordination more challenging but still achievable with proper protective device selection and settings.
Procedimento para ensaio de isolação de cabos elétricosRicardo Akerman
O documento descreve procedimentos para testar o isolamento em cabos elétricos. Inclui definições de termos como cabo de energia, isolamento e mufla. Descreve os componentes da corrente em um dielétrico submetido a tensão contínua. Detalha ensaios para medir a corrente de fuga em função da tensão e do tempo, a fim de avaliar a condição do isolamento.
The major challenge in Indian power sector is operating upgrading of the transmission & distribution lines with efficient meteringApplication of smart grid devices for consistently condition monitoring of overhead lines &substation can decides the action of maintenance required and thus condition-based maintenance (CBM) technique can be implemented. To meet ever increase in demand, reduction of value of losses, utilization of huge renewable energy and absence of automation in power Transmission & Distribution, there is need of Preventive Maintenance (PM) & logy(RCM).
The financial growth of India also depends on availability of electricity. Indian power sector having characteristics as shortage of generation and high T & D losses up to 30% of total electricity generation with some parts of states of country up to 40%. When losses due to theft are added in the total then average losses increases up to 30%. The economical loss reaches at 1.5% of the national GDP which is increasing. To maintain stability of power system up gradation is essential. Transmission system is operated & regulated as per the Regulations & standards given by Central Electricity Regulatory Commission (CERC), Central Electricity Authority (CEA), State Electricity Regulatory Commissions (SERC). At present Maintenance technology is one of the topics of R & D for various countries.
1) O documento discute os conceitos básicos de instalações elétricas de baixa tensão, incluindo simbologia, esquemas de ligações, materiais e componentes.
2) É definido o que é uma instalação elétrica e são apresentados esquemas fundamentais de ligações como comando simples, de duas seções e three-way.
3) São descritos elementos como eletrodos, caixas estampadas, disjuntores e divisão de circuitos.
INSPECTION AND TEST PROCEDURES FOR SWITCHGEAR AND SWITCHBOARDhussein ibrahim
The document outlines inspection and test procedures for switchgear and switchboard assemblies. It details various visual and mechanical inspections such as checking equipment nameplates, physical condition, anchorage and clearances. It also specifies electrical tests including insulation resistance tests, dielectric withstand tests and current injection tests. Test values are provided for comparing insulation resistance values, bolt torque levels and more. The purpose is to verify equipment is in good working order and installed according to design specifications and manufacturer recommendations.
1. Este documento fornece diretrizes técnicas para a ligação de unidades consumidoras individuais à rede de distribuição de energia elétrica em tensão secundária através de redes aéreas.
2. Aplica-se às instalações residenciais, comerciais e industriais com carga até 75 kW e define os requisitos mínimos para o padrão de entrada, ramal de ligação, proteção e medição de energia.
3. Fornece referências a normas técnicas e documentos internos sobre materiais e projetos
Cable sizing to withstand short-circuit current - ExampleLeonardo ENERGY
This document provides an example calculation of short circuit current for a power cable network. It first outlines the main design criteria for rating cable withstand for short circuit stresses. It then describes four methods for calculating short circuit current - ohmic, infinite bus, per unit and MVA methods. The example focuses on using the MVA method, providing equations and steps for calculating the equivalent short circuit power at different points in the network and converting this to a symmetrical fault current value. Resistances and reactances of cable sections are also included.
The document provides an overview of substation protection basics. It discusses why protection is needed to detect faults and isolate faulty equipment. The main types of faults are described along with the causes of insulation failures. The types of protection principles covered include overcurrent, differential, pilot wire, and distance protection. Key elements of a protection scheme like circuit breakers, relays, batteries, and transformers are also mentioned.
The document summarizes changes made in amendments to IEC 60947-2, the technical standard for low-voltage circuit breakers. Some key changes include:
- Addition of new tests like the critical DC current test to evaluate performance of DC circuit breakers.
- Clarification of tests required for circuit breakers used in enclosures.
- Updates to tests for dielectric properties, selectivity, and non-tripping duration.
- New annexes added on topics like residual current protection with auto-reclosing functions and DC circuit breakers for photovoltaic applications.
O documento discute os princípios fundamentais da proteção em sistemas eletroenergéticos, incluindo tipos de relés, causas de defeitos, efeitos de curto-circuito, estatísticas de falhas, classificação e características de relés de proteção.
The document describes how to conduct short circuit and open circuit tests on transformers using a DPATT-3Bi device to measure copper and iron losses, respectively. It provides details on the test setups, calculations for full load current and no load current, and how to interpret the results displayed on the DPATT-3Bi screen. The document also lists standard limits for transformer impedance voltages and losses according to Indian standards.
A presentation explaining how to calculate fault currents for 3-phase or 1-phase faults in power grid. Particularly useful for engineers working in electrical power transmission company.
This document provides information on various types of cables based on their construction and use. It discusses cable types for electrical, telecom, fiber optic and other applications. It also describes the construction of different cable types like XLPE and covers aspects of cable installation like laying, jointing, testing and maintenance. Common cable accessories used are also explained.
1) O documento descreve diferentes tipos de disjuntores 3VL, 3VT e 3VF para manobra e proteção em instalações elétricas industriais e comerciais.
2) São listadas as especificações técnicas como corrente nominal, corrente máxima de interrupção, dimensões e tipos dos disjuntores.
3) Os disjuntores possuem configurações tripolares, bipolares e monopolares para diferentes faixas de corrente nominal de 16A a 1600A.
1) O documento descreve diferentes tipos de disjuntores 3VL, 3VT e 3VF para manobra e proteção em instalações elétricas industriais e comerciais.
2) São listadas as especificações técnicas de cada disjuntor, incluindo corrente nominal, corrente máxima de interrupção, dimensões e tipos.
3) Os disjuntores possuem correntes nominais ajustáveis e protegem circuitos elétricos em uma variedade de tensões e correntes.
The RTCC (Remote Tap Changer Control) panel controls the output voltage of a transformer through an OLTC (On Load Tap Changer) unit using control cables. The RTCC contains an AVR (Automatic Voltage Regulator) that maintains the output voltage at a set reference level by signaling the OLTC to adjust its tap position accordingly. The RTCC can operate in automatic mode, where the AVR controls the voltage, or manual mode, where an operator can raise or lower the voltage using buttons. The OLTC itself is located inside the transformer and changes tap positions to adjust the output voltage through a motorized mechanism that is controlled by the RTCC.
Testing and Condition Monitoring of Substation EquipmentsSumeet Ratnawat
Testing and condition monitoring of substation equipments,Transformer specifications,Monitoring of Transformer,On-load Tap changer,Overhauling,Tan delta and capacitance,Thermal imaging,Sweep frequency response analysis,Oil analysis of Switchgear elements containing oil,tests on insulating oil,Breaker monitoring,Condition monitoring of CT,Condition monitoring of CVT,Surge Arresters,Condition monitoring of relays.
The document discusses busbar protection, including the need for busbar protection, types of busbar protections like high impedance, medium impedance and low impedance protections. It describes the requirements of busbar protection like short tripping time and stable operation during external faults. The document discusses different busbar arrangements and applications of numerical busbar protection systems like RADSS. It provides examples of busbar protection schemes for different bus configurations. The document also includes excerpts from technical manuals providing recommendations on busbar protection in substations.
The document is a presentation on the Liluah 132/33/25 KV substation in West Bengal. It includes acknowledgments, a single line diagram of the substation, and sections covering various equipment found at the substation like electrical busbars, protective relay schemes, lightning protection, isolators, capacitor banks, powerline carrier communication, batteries, earth transformers, traction transformers, station service transformers, and power transformers. Technical specifications are provided for some of the major equipment.
The document describes the Alstom Grid Technical Institute, which provides technical training on electrical substation and network equipment. It has 19 training institutes located at factory sites that offer over 200 technical topics. Training is delivered through both classroom and online "tutored e-learning" methods. A variety of course lengths and topics are available, covering electrical safety, gas handling, network management, and equipment maintenance. Certification is provided upon completion of courses to validate skill levels.
This document provides information about transformer tests conducted at BEST Balıkesir Transformer Factory laboratories. It describes routine tests like winding resistance measurement, voltage ratio measurement and phase checking, as well as type tests and special tests. The routine tests section explains test procedures and equipment for various tests done on all transformers produced. These include impedance measurement, no-load loss tests, and tap changer tests. Type and special tests involve temperature rise testing, lightning impulse testing, and other advanced analyses. Laboratory equipment for performing over a dozen transformer tests is also listed.
1. Selective coordination requires coordination between protective devices like circuit breakers from the utility source down to final subcircuits in order to isolate faults only to the protective device closest to the fault location.
2. Ground fault protection on feeders is required by NEC to provide an additional level of ground fault protection downstream from the service entrance with a minimum 6 cycle separation between service and feeder tripping bands to maintain selectivity.
3. While systems must be designed to withstand bolted faults, the majority of real-world faults will be arcing type faults which limit available fault current, making selective coordination more challenging but still achievable with proper protective device selection and settings.
Procedimento para ensaio de isolação de cabos elétricosRicardo Akerman
O documento descreve procedimentos para testar o isolamento em cabos elétricos. Inclui definições de termos como cabo de energia, isolamento e mufla. Descreve os componentes da corrente em um dielétrico submetido a tensão contínua. Detalha ensaios para medir a corrente de fuga em função da tensão e do tempo, a fim de avaliar a condição do isolamento.
The major challenge in Indian power sector is operating upgrading of the transmission & distribution lines with efficient meteringApplication of smart grid devices for consistently condition monitoring of overhead lines &substation can decides the action of maintenance required and thus condition-based maintenance (CBM) technique can be implemented. To meet ever increase in demand, reduction of value of losses, utilization of huge renewable energy and absence of automation in power Transmission & Distribution, there is need of Preventive Maintenance (PM) & logy(RCM).
The financial growth of India also depends on availability of electricity. Indian power sector having characteristics as shortage of generation and high T & D losses up to 30% of total electricity generation with some parts of states of country up to 40%. When losses due to theft are added in the total then average losses increases up to 30%. The economical loss reaches at 1.5% of the national GDP which is increasing. To maintain stability of power system up gradation is essential. Transmission system is operated & regulated as per the Regulations & standards given by Central Electricity Regulatory Commission (CERC), Central Electricity Authority (CEA), State Electricity Regulatory Commissions (SERC). At present Maintenance technology is one of the topics of R & D for various countries.
1) O documento discute os conceitos básicos de instalações elétricas de baixa tensão, incluindo simbologia, esquemas de ligações, materiais e componentes.
2) É definido o que é uma instalação elétrica e são apresentados esquemas fundamentais de ligações como comando simples, de duas seções e three-way.
3) São descritos elementos como eletrodos, caixas estampadas, disjuntores e divisão de circuitos.
INSPECTION AND TEST PROCEDURES FOR SWITCHGEAR AND SWITCHBOARDhussein ibrahim
The document outlines inspection and test procedures for switchgear and switchboard assemblies. It details various visual and mechanical inspections such as checking equipment nameplates, physical condition, anchorage and clearances. It also specifies electrical tests including insulation resistance tests, dielectric withstand tests and current injection tests. Test values are provided for comparing insulation resistance values, bolt torque levels and more. The purpose is to verify equipment is in good working order and installed according to design specifications and manufacturer recommendations.
1. Este documento fornece diretrizes técnicas para a ligação de unidades consumidoras individuais à rede de distribuição de energia elétrica em tensão secundária através de redes aéreas.
2. Aplica-se às instalações residenciais, comerciais e industriais com carga até 75 kW e define os requisitos mínimos para o padrão de entrada, ramal de ligação, proteção e medição de energia.
3. Fornece referências a normas técnicas e documentos internos sobre materiais e projetos
Cable sizing to withstand short-circuit current - ExampleLeonardo ENERGY
This document provides an example calculation of short circuit current for a power cable network. It first outlines the main design criteria for rating cable withstand for short circuit stresses. It then describes four methods for calculating short circuit current - ohmic, infinite bus, per unit and MVA methods. The example focuses on using the MVA method, providing equations and steps for calculating the equivalent short circuit power at different points in the network and converting this to a symmetrical fault current value. Resistances and reactances of cable sections are also included.
The document provides an overview of substation protection basics. It discusses why protection is needed to detect faults and isolate faulty equipment. The main types of faults are described along with the causes of insulation failures. The types of protection principles covered include overcurrent, differential, pilot wire, and distance protection. Key elements of a protection scheme like circuit breakers, relays, batteries, and transformers are also mentioned.
The document summarizes changes made in amendments to IEC 60947-2, the technical standard for low-voltage circuit breakers. Some key changes include:
- Addition of new tests like the critical DC current test to evaluate performance of DC circuit breakers.
- Clarification of tests required for circuit breakers used in enclosures.
- Updates to tests for dielectric properties, selectivity, and non-tripping duration.
- New annexes added on topics like residual current protection with auto-reclosing functions and DC circuit breakers for photovoltaic applications.
O documento discute os princípios fundamentais da proteção em sistemas eletroenergéticos, incluindo tipos de relés, causas de defeitos, efeitos de curto-circuito, estatísticas de falhas, classificação e características de relés de proteção.
The document describes how to conduct short circuit and open circuit tests on transformers using a DPATT-3Bi device to measure copper and iron losses, respectively. It provides details on the test setups, calculations for full load current and no load current, and how to interpret the results displayed on the DPATT-3Bi screen. The document also lists standard limits for transformer impedance voltages and losses according to Indian standards.
A presentation explaining how to calculate fault currents for 3-phase or 1-phase faults in power grid. Particularly useful for engineers working in electrical power transmission company.
This document provides information on various types of cables based on their construction and use. It discusses cable types for electrical, telecom, fiber optic and other applications. It also describes the construction of different cable types like XLPE and covers aspects of cable installation like laying, jointing, testing and maintenance. Common cable accessories used are also explained.
1) O documento descreve diferentes tipos de disjuntores 3VL, 3VT e 3VF para manobra e proteção em instalações elétricas industriais e comerciais.
2) São listadas as especificações técnicas como corrente nominal, corrente máxima de interrupção, dimensões e tipos dos disjuntores.
3) Os disjuntores possuem configurações tripolares, bipolares e monopolares para diferentes faixas de corrente nominal de 16A a 1600A.
1) O documento descreve diferentes tipos de disjuntores 3VL, 3VT e 3VF para manobra e proteção em instalações elétricas industriais e comerciais.
2) São listadas as especificações técnicas de cada disjuntor, incluindo corrente nominal, corrente máxima de interrupção, dimensões e tipos.
3) Os disjuntores possuem correntes nominais ajustáveis e protegem circuitos elétricos em uma variedade de tensões e correntes.
[1] O documento descreve diferentes tipos de dispositivos de proteção diferencial, incluindo interruptores diferenciais residuais (DR), disjuntores com proteção diferencial (DDR) e blocos diferenciais acopláveis (DOC).
[2] Os dispositivos fornecem proteção contra choques elétricos e incêndios, detectando correntes de fuga para a terra. Eles estão disponíveis em diferentes níveis de sensibilidade e capacidades de corrente.
[3] O documento fornece informações técnicas detalhadas sobre
1) O documento lista diferentes tipos de equipamentos elétricos para aplicações como bombeamento, irrigação, combate a incêndio e piscinas.
2) Inclui tabelas com especificações técnicas de quadros elétricos e dispositivos de proteção para motores monofásicos, bifásicos e trifásicos de diferentes potências e tensões.
3) Fornece detalhes sobre os modelos CHA ECO, CHA LIGHT e CHA 03, que são quadros elétricos econômicos para automação e proteção de motores
Este manual fornece instruções sobre a operação e manutenção do transformador monofásico NM 250 TURBO. Contém especificações técnicas, diagramas elétricos, lista de peças e instruções de segurança, instalação, operação e manutenção.
Apresentação casa da solda. Este catálogo apresenta todos os produtos fornecidos pela casa da solda. Aqui você encontra tudo o que precisa para realizar seu serviço de solda com alta qualidade e com o que há de mais moderno disponível no mercado. Fornecemos insumos, acessórios e máquinas para todo o tipo de trabalho com solda. Fique à vontade para escolher o produto que atende a sua necessidade. Conte conosco para esclarecer qualquer dúvida.
O documento descreve contatores modulares CWM e seus acessórios para manobras de motores elétricos, incluindo:
- Especificações técnicas de modelos de contatores de 9 a 105A, com tensões e potências suportadas, número de pólos e fusíveis máximos.
- Relés de sobrecarga RW_D compatíveis com diferentes contatores.
- Bases de fixação individuais BF para montagem dos contatores.
- Opções de acessórios como contatos auxiliares, blocos antiparasitas
Este manual fornece instruções sobre a instalação, operação e especificações técnicas da soft-starter SSW-05. Ele descreve como identificar o modelo, ajustar os parâmetros, conectar e proteções disponíveis. Informa também sobre dimensões, capacidade de rede e acessórios recomendados para instalação.
O documento fornece informações sobre relés de segurança da empresa Schmersal, incluindo um guia para escolha do relé correto, especificações técnicas de vários modelos e esquemas elétricos. O site da empresa oferece conteúdo técnico, catálogos, localização de distribuidores, compra de produtos online e eventos.
[1] O documento descreve diferentes tipos de dispositivos de proteção diferencial, incluindo interruptores diferenciais (DR), disjuntores com proteção diferencial (DDR) e blocos diferenciais acopláveis (DOC), que protegem contra choques elétricos e incêndios.
[2] Os dispositivos fornecem proteção a diferentes níveis de corrente residual e podem ser usados em conjunto com disjuntores para proteção contra sobrecargas e curto-circuitos.
[3] As tabelas fornecem informações técnicas e
O documento fornece instruções sobre reguladores de tensão de três terminais, descrevendo seus tipos, especificações e como usá-los para projetar fontes de alimentação estabilizadas. Explica como escolher o regulador correto com base na tensão e corrente necessárias e como conectá-lo corretamente com outros componentes como capacitores e dissipadores térmicos.
O documento descreve vários tipos de relés modulares de interface, incluindo suas especificações técnicas e características. São listados relés eletromecânicos e de estado sólido com diferentes configurações de contatos e tensões de alimentação. As informações incluem dimensões, correntes nominais, vida útil e outras especificações.
O documento descreve os disjuntores da linha 5SX da Siemens para instalações elétricas residenciais, comerciais e industriais. Apresenta as especificações técnicas dos disjuntores incluindo corrente nominal, tensão, corrente de interrupção e curvas de disparo. Também lista acessórios como módulos de corrente residual e barras de conexão compatíveis com os disjuntores.
O documento apresenta as especificações técnicas de um projeto elétrico para uma edificação, incluindo informações sobre a empresa responsável, normas aplicadas, dimensionamento dos circuitos, quadros elétricos e demais elementos da instalação.
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2. São descritas várias linhas de produtos com especificações técnicas como corrente nominal, curvas de disparo, tensão e isolamento.
3. As soluções são modulares e podem ser combinadas para aplicações residenciais e comerciais, oferecendo proteção contra curto-circuito, sobrecarga, choques elétricos e
O documento fornece informações técnicas sobre contatores de potência e relés de sobrecarga da marca Sirius, incluindo suas categorias de emprego, correntes nominais, potências de motores suportadas, dimensões e fusíveis máximos recomendados.
O documento descreve disjuntores tripolares que permitem o controle e proteção de motores elétricos de até 15 kW. Fornece detalhes técnicos sobre as especificações, capacidades e acessórios dos disjuntores de diferentes correntes nominais, que variam de 0,16 A a 32 A.
O documento descreve disjuntores tripolares que permitem o controle e proteção de motores elétricos de até 15 kW. Fornece detalhes técnicos sobre as especificações, capacidades e acessórios dos disjuntores de diferentes correntes nominais, que variam de 0,16 A a 32 A.
2. Disjuntores 3VT
em caixa moldada até 1600 A
Para manobra e proteção de instalações elétricas de baixa tensão.
• Design Compacto
• Simples e Prático
• Ampla linha de acessórios internos e externos
• Disparadores de sobrecorrente termomagnéticos ou eletrônicos
• Todos os componentes podem ser combinados de maneira modular
• Disparadores de sobrecorrente eletrônico facilmente substituível por pessoas qualificadas
• Fácil configuração, instalação e operação, praticidade no projeto e na aplicação para o usuário
• Atende a norma: ABNT NBR IEC 60947-2
Disjuntores 3VT1 3VT2 3VT2H 3VT3 3VT3H 3VT4 3VT5
Tamanho da estrutura (3 polos)1
corrente nominal máxima
160 1000 1600
Tensão nominal de isolamento Ul
690 690 690
Tensão nominal de operação Ue 690 690 690
Disparador de sobrecorrente, função L I Termomagnético Eletrônico Eletrônico
Disparador 0,75 - 1 x In
ajustável / fixo
0,40 - 1 x In
ajustável
0,40 - 1 x In
ajustável
Capacidade nominal 40kA 60kA 100kA 60kA 100kA 85kA 85kA
de interrupção 25kA 36kA 65kA 36kA 65kA 65kA 55kA
máxima em 12kA 16kA 25kA 20kA 35kA 45kA 45kA
curto-circuito – Icu 6kA 10kA 13kA 15kA 20kA 20kA 20kA
Interrupção de
curto-circuito em serviço - Ics
50 50 50
Seção dos condutores2
2,5 - 95mm2
(2x25 - 120mm2
)
(2x70 - 240mm2
)
(até 2x150 - 300mm2
)
(2x70 - 240mm2
)
(até 4x150 - 300mm2
)
16 x 5mm 2 x 50 x 6 mm 2 x 50 x 10mm
Dimensões 75 210 210
130 494 494
70 157 157
83 198 198
barra
cabo
(com bornes opicionais)3
415Vca (% Icu)
690Vca
500Vca
380-415Vca
220-230Vca
curto-circuito
sobrecarga
(Vca)
(Vca)
(A)
16 - 150mm2
(até 2x150 - 240mm2
)
25 x 5mm
35 - 240mm2
(até 2x150 - 240mm2
)
32 x 12 mm
Eletrônico Eletrônico
690 690
690690
250 630
0,40 - 1 x In
ajustável / fixo
0,40 - 1 x In
ajustável / fixo
50 50
1) Disjuntores 3VT são fornecidos com 2 divisórias isolantes e conjunto de parafuso para montagem fixa.
2) Disjuntores 3VT1 são fornecidos com bornes para conexão direta de condutores; disjuntores 3VT2 / 3VT3 / 3VT4 / 3VT5 são fornecidos com bornes para conexão
por parafuso para barra ou borne olhal.
3) Para especificação de bornes para conexão direta de condutores nos disjuntores 3VT2 / 3VT3 / 3VT4 / 3VT5, veja os tipos em acessórios nas páginas seguintes.
105 140
225 275
117 117
148 154
A (mm)
B (mm)
C (mm)
D (mm)
+ + + +
NSE0_01159
A
B
D
C
Dados técnicos