Products/Services for Arc Detection Relay

  • Protective Relays and Monitoring Relays-Image
    Protective Relays and Monitoring Relays - (324 companies)
    The relay then initiates the appropriate control circuit actions. Monitoring relays are used to verify conditions in the power system or in the protective system. Monitoring relay functions include fault detection, voltage checking, and direction-sensing... Search by Specification | Learn More
  • Ground Fault Relays-Image
    Ground Fault Relays - (32 companies)
    Ground fault relays protect electrical equipment from ground faults. A ground fault is an unintentional current path between a current-carrying conductor and a grounded surface. When a ground fault occurs, electric current may find a path to ground... Search by Specification | Learn More
  • Condition Monitors and Fault Detectors-Image
    Condition Monitors and Fault Detectors - (62 companies) a mechanical system is a failed roller bearing. Both mechanical and electrical faults produce characteristic sounds, which can be detected using air or structure borne acoustic detection techniques. Condition monitors and fault detectors find faults... Search by Specification | Learn More
  • Electromechanical Relays-Image
    Electromechanical Relays - (737 companies)
    ...speed ones. In low voltage applications, high speed relays reduce noise, while in high voltage applications fast switches reduce arcing and the possibility of physical damage. Features. An electromechanical relay may feature one or many special... Search by Specification | Learn More
  • Solid State Relays-Image
    Solid State Relays - (617 companies)
    Solid state relays (SSR) or semiconductor relays are semiconductor devices that can be used in place of mechanical relays to switch electricity to a load in many applications. Definition. A solid state relay (SSR) is an electrically operated switch... Search by Specification | Learn More
  • Relay Sockets - (156 companies)
    Relay Sockets Information. Relay sockets are devices that accept relays, electromechanical switches in which the variation of current in one electric circuit controls the flow of electricity in another circuit. Relay sockets are made of metal... Search by Specification | Learn More
  • Electrodes and Electrode Materials - (324 companies) provide anti-welding and/or arc-resistance. They are used in circuit breakers, relays, switches, and EDM applications. Electrode Materials. The GlobalSpec SpecSearch Database contains information and listings for many types of electrode materials. Some... Search by Specification | Learn More
  • Relay Boards - (74 companies)
    Relay Boards Information. Relay boards are computer boards with an array of relays and switches. They have input and output terminals and are designed to control the voltage supply. Relay boards provide independently programmable, real-time control... Search by Specification | Learn More
  • Safety Relays - (162 companies)
    ...faults. Relay Configuration. The GlobalSpec SpecSearch database contains information about both single and dual channel safety relays. Single channel relays are capable of accepting a single normally closed (NC) input and are unable to detect short... Search by Specification | Learn More
  • Reed Relays - (96 companies) to the other contact, resulting in a bond that is too strong for the reed's spring action to reverse. In this case, the relay becomes unusable and would need to be replaced. Specifications. Mounting. Reed relays may be mounted using a number... Search by Specification | Learn More
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detection schemes were developed,. Automotive electro-mechanical and solid-state-relays. built and tested with different loads including motor loads. were employed to shut off the electrical circuit in the. to clear both parallel and series arc faults in a 42 V DC. event of an arc fault. network...

...of arc flash. It can occur in any electrical equipment An integrated approach incorpo-. regardless of voltage. rating infrared and ultrasound is. Arc-flash incidents can happen from poor work habits, dropping of tools, recommended for the detection of. or accidental contact with energized equipment...

Computer-controlled advances in avionics, such as fly by wire, along with added onboard electrical features, including in-seat, passenger entertainment systems, are boosting electrical demand on board aircraft. Standard thermal circuit breakers and relay systems are carrying ever more current-dense...

Grid-connected commercial photovoltaic (PV) systems. are trending towards larger sizes, resulting in systems. with higher bus voltage and current levels. Problems. caused by ground faults are becoming a bigger concern. due to increased energy available at the point of fault;. arc-flash and shock...

...with an accuracy of ±3% of full scale. Another form of arc detection may be improvised by using a small neon lamp with one terminal connected to the hot side of the capacitor under test and the other terminal of the lamp floating. The lamp will flash when the capacitor arcs. A contact microphone and audio...

The following sections will discuss in detail the two categories of transients, how they occur, their effects and their detection. an9769 An Overview of Electromagnetic and Lightning. Induced Voltage Transients. Application Note. January 1998. AN9769. Introduction. CLOSING. This Note is an overview... the result of an investigation into why. ground-fault relays failed to operate. When ground-fault relays are tested by primary current. injection, as shown in Figure 6, false confirmation of ground-. fault relay operation can occur. The ground-fault relays. will respond to the injected current and appear...

...frequencies. are more popular for local or line-of-sight. communication and for elevated tower-, air-. borne- or satellite-based relay communication. This article will introduce the fundamentals of. over-voltage protection for coaxial interfaces,. and discuss the specific challenges of protect-. ing...

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