Overvoltage protection Protection of 1ph, 230 V devices, the LPZ 2/3 interface, Type 3 In order to protect a device powered from the 230V grid, you should install a surge suppressor in the control panel, which is as close as possible to the... Overvoltage protection Protection of the supply network TN-S, 3ph, 230V, the LPZ 1/2 interface, Type 2 Protecting the supply network on the LPZ 1/2 interface, Type 2, can be facilitated by installing a surge suppressor in the subordinate switchboard, e.g.... Overvoltage protection Protection of the mains TN-C, 3ph, 230V and the interface LPZ 0/1, Type 1+2 Wiring the protection of Type 1+2 (lightning current suppressor) of the mains for objects with the main fuse up to 63 A connected by an earth cable, the... Overvoltage protection Protection of the mains TN-C, 3ph, 230 V and the interface LPZ 0/1, Type 1 Wiring the protection of Type 1 (lightning current suppressor) of the mains for objects with the main fuse up to 63 A connected by an earth cable, the... Overvoltage protection SPD when placing the control system in the secondary switchboard When applied with a control system, SPD type 3 with a high-frequency filter is used, which not only protects the system against overvoltage but also against... Overvoltage protection Coordination of SPD with the control systems in the main switchboard or in close vicinity The application with the control system uses the Type 3 of SPD with a high frequency filter, which protects the system both against overvoltage, and also... Overvoltage protection An example of a three-level coordinated protection in power distribution systems Using a three-stage protection suits virtually all types of applications. Wiring the protection of Type 1 (lightning current suppressor) of the mains... Overvoltage protection Basic concepts, defining the requirements for SPD Four levels of protection against lightning (LPL) have been introduced to meet the requirements of the ČSN EN 62305 standard. Each level includes a set... Overvoltage protection Surge protection, SPD selection and mounting The following articles are devoted to the protection of the building against lightning and overvoltage according to ČSN EN 62305, briefly describe... Mechanics, connectors, relays The 1A semiconductor relay These relays are fitted in e.g. the Foxtrot basic modules CP-10x6 and 10x8-CP (DO0, DO1) Tab. 1. The parameters of the actual switching element... … 20 21 22 23 24 25 26 27 28 …
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