Sistema de medição de temperatura de fibra óptica fluorescente para disjuntores de manobra, fabricante-INNO

O quadro de distribuição de alta tensão equipado com disjuntores a vácuo de carrinho de mão e carrinhos de mão de isolamento deve ser equipado com um sistema de monitoramento on-line de fibra óptica de hotspot fluorescente (com um mínimo de 8 pontos de detecção por gabinete de alta tensão) para monitorar os contatos do disjuntor, barramentos, cabos, etc.. em tempo real.

With the development of the national economy, a capacidade da rede elétrica aumenta, a tensão da rede elétrica aumenta, e a estabilidade da operação e fornecimento da rede elétrica também enfrentam requisitos mais elevados. O status operacional do equipamento elétrico principal afeta diretamente se o sistema de energia pode operar de forma segura e confiável
Aparelhagem de alta tensão é usada em sistemas de energia para controlar, proteger, and isolate electrical equipment. Integra um grande número de componentes elétricos, incluindo disjuntores de alta tensão, interruptores de isolamento, e fusíveis, dentro de uma caixa de metal aterrada. A principal função do painel é abrir, close, controlar, e proteger equipamentos elétricos durante o processo de geração de energia, transmissão, distribuição, and energy conversion in the power system;

Atualmente, with the widespread use of fully enclosed high-voltage switchgear in 10kV power grids, higher requirements have been put forward for its reliability. No entanto, abnormal heating of electrical joints inside the switchgear during long-term operation has become a common problem among many factors affecting the safe operation of the switchgear. In response to the current situation of temperature monitoring of high-voltage equipment, the online monitoring system for high-voltage electrical contact temperature has solved the problems encountered in conventional temperature monitoring methods and played a good warning role in avoiding high-voltage electrical equipment accidents.

Nos últimos anos, multiple fires and large-scale power outages have occurred in the power system due to equipment overheating. Analysis shows that 40% of the annual power accidents in China are caused by overheating of high-voltage electrical equipment; In power supply systems that use high-voltage switchgear and power cables, sobre 70% of cable operation failures are caused by increased contact resistance and overload at the connection points, resulting in excessively high joint temperatures. A 110kV substation has experienced a prolonged power outage due to the heating and ignition of the feeder cable joints and switch primary contacts, resulting in the burning of three 10kV fully enclosed high-voltage switches and causing significant economic losses. In order to ensure the reliability of power supply and the continuity of production, cable joint temperature measurement has become a standard configuration for high-voltage switchgear in large local chemical enterprises. No entanto, due to the reliability of technology and high installation costs, it has not been widely promoted. With the maturity of technology and the reduction of costs, it is believed that there will be a great market demand.

Características de Fluorescent Fiber Optic Temperature Measurement System for Switchgear Circuit Breaker

1. Resistência a altas temperaturas, resistência ao envelhecimento, resistência à corrosão, alto isolamento, non adhesion and other characteristics, can adapt to harsh use environments such as high voltage, alta temperatura, e fortes campos eletromagnéticos;

2. Real time monitoring of temperature changes in key areas of high-voltage switchgear/ring main unit, and issuing real-time alarm information (aviso, alarme, e acima do limite) com base nas mudanças de temperatura;

3. Not changing the original form of the contact busbar and cable head of the switchgear, and not reducing the performance of the cable head and the entire cabinet;

4. Can pass partial discharge test and withstand voltage test normally;

5. Fiber optic sensors have good flexibility, alta dureza física, não são facilmente danificados, e tem uma longa vida útil;

6. Os sensores podem ser personalizados de acordo com os requisitos, incluindo comprimento do sensor, tipo de sonda, e material da bainha do sensor (cerâmica, vidro, plástico, ou outros materiais isolantes)