ELKOEP electrical components German ELKOEP models ELKOEP prices

ELKOEP electrical components refer to lightning arresters or antenna switching tubes used for overvoltage protection, which contain two or more electrodes and are filled with a certain amount of inert gas. A gas discharge tube is a gap-type lightning protection component used in the lightning protection of communication systems. Gas discharge tubes have been widely applied in the lightning protection of communication systems. Discharge tubes are commonly used in the first or first two stages of multi-stage protection circuits to discharge instantaneous lightning overcurrents and limit overvoltages. Due to the very high inter-electrode insulation resistance and very small parasitic capacitance of the discharge tube, it has clear advantages for lightning protection of high-frequency signal lines. The main disadvantages of the discharge tube's protection characteristics are its large discharge delay and less-than-ideal operating sensitivity, making it difficult to effectively suppress lightning waves with a steep wavefront rise rate, and there is a follow-current issue in the lightning protection of power systems. Commonly used gas discharge tubes include two-electrode and three-electrode discharge tubes; their encapsulation housing material is mostly ceramic, hence they are called ceramic discharge tubes.

ELKOEP electrical component classification

Fiber optic connectors can be divided into common single-mode and multi-mode connectors for silica-based fibers according to the transmission medium, as well as other fiber optic connectors using plastic etc. as the transmission medium. According to the connector structure, they can be divided into: FC, SC, ST, LC, D13, DIN, MU, MT, and various other forms. Among them, ST connectors are typically used at the cabling equipment end, such as fiber patch panels and fiber modules; while SC and MT connectors are typically used at the network equipment end. According to the fiber end-face shape, they are classified into FC, PC (including SPC or UPC), and APC; according to the number of fiber cores, there is a distinction between single-core and multi-core (such as MT-RJ). Fiber optic connectors are widely used and come in many varieties. In practical applications, we generally distinguish them according to the different structures of the fiber optic connectors.

ELKOEP electrical component functions

The starter solenoid switch is a key component of the starter, and the design quality of the solenoid switch directly affects the reliability of the starter. The starter solenoid switch has two functions: one is to connect the main circuit to make the starter rotate, and the other is to push out the drive gear via the shift fork to engage with the engine flywheel ring gear. Therefore, the solenoid switch is required to have corresponding suction force, corresponding stroke, and contacts that can reliably switch high currents. Additionally, it is required to minimize volume and weight as much as possible. Based on these characteristics, the contact structure of solenoid switches generally adopts a contact form, i.e., the moving contact is made into a bridge piece or disc shape to provide a larger heat dissipation surface and thermal capacity. The magnetic system mostly adopts a solenoid electromagnet structure to meet the requirements of corresponding stroke, corresponding suction force, small volume, and light weight. The moving iron core of the solenoid switch can move smoothly in the brass bushing equipped with a solenoid coil. The moving iron core pull rod is connected to the shift fork unidirectional clutch. Under the action of the return spring, the moving iron core normally remains in the non-operating initial position. During starting, the starter drive gear needs to move forward by approximately 12-25mm. Therefore, when the solenoid switch begins to close, a large magnetomotive force is required to generate the necessary initial suction force. After being pulled in, the air gap decreases, and the electromagnetic suction force increases sharply, greatly exceeding the force required to maintain the closed state. For this reason, the solenoid switch uses two coils (an attraction coil and a holding coil). Initially, the attraction coil and holding coil jointly generate electromagnetic suction force. After the switch contacts close, the attraction coil automatically disengages from the operating state, and the holding coil alone maintains the switch in the closed state. The holding coil current is relatively small and can be wound with thinner wire, which not only reduces the volume of the solenoid switch but also achieves reasonable suction force matching. To ensure the reliability of the starter, it is necessary to focus on controlling the design quality of the solenoid switch.

ELKOEP electrical component classification

Classification according to the working principle or structural characteristics of relays: (1) Electromagnetic relay: An electrical relay that operates using the suction force generated between the electromagnet core and the armature by the current in the input circuit. (2) Solid-state relay: A relay where electronic components perform its functions without mechanical moving parts, providing isolation between input and output. (3) Temperature relay: A relay that operates when the external temperature reaches a set value. (4) Reed relay: A relay that opens, closes, or switches circuits using the action of reeds sealed in a tube, which serve the dual function of contact springs and armature magnetic circuit. (5) Time relay: A relay whose output part delays or limits to a specified time before closing or opening its controlled circuit when an input signal is applied or removed. (6) High-frequency relay: A relay used for switching high-frequency and RF lines with minimal loss. (7) Polarized relay: A relay that operates due to the combined effect of a polarizing magnetic field and the magnetic field generated by the control current passing through the control coil. The operating direction of the relay depends on the direction of the current flowing through the control coil. (8) Other types of relays: Such as optical relays, acoustic relays, thermal relays, instrument relays, Hall effect relays, differential relays, etc.

Weidou Intelligent Technology specializes in selling German ELKOEP connectors, ELKOEP switches, ELKOEP relays, ELKOEP controllers, ELKOEP plugs, ELKOEP sensors, ELKOEP resistors, ELKOEP capacitors, ELKOEP buses, ELKOEP modules, ELKOEP cables, ELKOEP power supplies, ELKOEP interfaces, ELKOEP gateways, ELKOEP circuit breakers, ELKOEP original imports from Germany. Welcome customers to inquire and order.