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Three-phase relays of tension

Three-phase relays of tension
  • Three-phase relays of tension
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Three-phase relays of tension are used for protection of three-phase consumers against inadmissible fluctuations of tension in a network, break and a distortion of phases, adhesion and violation of alternation of phases. It is effectively used for protection of the refrigerating, air conditioning, compressor and other appliances having electromotive loading. Also are used in devices where it is necessary to exercise a constant control of existence, quality and full-staging of mains voltage, for example in schemes AVR.
In all relays of tension return coefficient (hysteresis) about 5B. Range of operability of our relays of tension — 30-150% of rated voltage. At deep landings, and also at sharp increase of tension acceleration of operation of the relay is automatically entered. Relays of tension provide automatic inclusion of loading after restoration of parameters of tension with a certain endurance of time. Malogabaritna tension relays also have small weight. All fasten on a standard DIN lath.
Relays of tension turn on parallel to loading and operate the coil of the magnetic actuator. Thus use of the relay of tension practically does not depend on loading power. At the exits of the relay of tension there are two groups of independent contacts (one couple - normally closed, another - normally opened) switching loading to 5A.
Information is up-to-date: 13.11.2018
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