ac system relays это:

ac system relays
устройства релейной защиты системы переменного тока

Англо-русский словарь технических терминов. 2005.

Смотреть что такое "ac system relays" в других словарях:

  • System Shock — Infobox VG title = System Shock developer = Looking Glass Studios publisher = Origin Systems/Electronic Arts designer = Doug Church engine = Enhanced Underworld engine released = March 26, 1994cite web |… …   Wikipedia

  • postal system — System that allows persons to send letters, parcels, or packages to addressees in the same country or abroad. Postal systems are usually government run and paid for by a combination of user charges and government subsidies. There are early… …   Universalium

  • Power system protection — is a branch of electrical power engineering that deals with the protection of electrical power systems from faults through the isolation of faulted parts from the rest of the electrical network. The objective of a protection scheme is to keep the …   Wikipedia

  • 405-line television system — The 405 line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting. It was introduced with the BBC Television Service in 1936, suspended for the duration of World… …   Wikipedia

  • Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …   Wikipedia

  • Open Relay Behavior-modification System — (ORBS), created and run by Alan Brown in New Zealand, was one of the first DNS based Blackhole Lists (DNSBL), a means by which an internet domain may publish a list of IP addresses, in a database which can be easily queried automatically by other …   Wikipedia

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

  • Control system — For other uses, see Control system (disambiguation). A control system is a device, or set of devices to manage, command, direct or regulate the behavior of other devices or system. There are two common classes of control systems, with many… …   Wikipedia

  • Business telephone system — Early model 464G Western Electric key telephone set A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private …   Wikipedia

  • Schafer automation system — The first Schafer Automation System, installed at KGEE(AM) in Bakersfield, California in 1956, was dubbed the blue wire job because all of the wiring in it was blue, its inventor, Paul Schafer said. The owner wanted to program his station all… …   Wikipedia

  • Emergency power system — Emergency power systems are a type of system, which may include lighting, generators and other apparatus, to provide backup resources in a crisis or when regular systems fail. They find uses in a wide variety of settings from residential homes to …   Wikipedia


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