فا فارسی
Bornika
Bornika

Transient Earth Fault Relay type EWR22

  • Model:
  • EWR22
  • Request Code:
  • EWR22

Transient earth fault relay type EWR22 monitors each feeder of the bus bar and signal transient earth faults and transient earth faults with continuous earth faults The different features of the relay and the easy change of parameters offer an optimal adaptation to the system. Features of EWR22 : - adjustable trigger value of the zero sequence voltage and the measured current - suppression of the transient earth fault signals depending on the selected minimum time of the zero sequence voltage - suppression of earth fault signals towards the bus bar (optional) - in case of a new earth fault the choice for retention or reset of the previous status and indication of actual direction of the earth fault is possible. - signal status remains in case of power supply failure (bistable relay) - manual reset of the indication by an external signal or automatically after a selectable time - for LED, 3 different colors are considered.( yellow, green, red) Bornika is the representative of A.Eberle company, in purchasing , sales, consulting and distribution of industrial equipment including Earth Leakage and Earth Fault Protection Relay.

Share in social networks

Instagram Telegram Aparat Linkedin

Transient Earth Fault Relay type EWR22 Specification

Dimensions 130 x 184 x 65 mm
Voltage Supply from the measuring circuit: - (AC 100/110V)) - external AC 85..110V..264V / DC 88..220V..280V H1 - external DC 18V..60V..72V
Approximate Weight depend on mounting (1.5 kg)

Transient Earth Fault Relay type EWR22 Catalogs

Download Catalog : operating manual file for ewr22 140 KB

Transient Earth Fault Relay type EWR22 More Description

For the detection of an earth fault and its „direction“ the zero sequence voltage UNE and the zero-sequence-current are measured and their polarities are compared immediately after an earth fault event. To prevent an accidental reaction of the transient earth fault relay this comparison is only carried out in a very small time slot. The zero sequence voltage is used as a reference quantity for the direction of the zero-sequence-current. If both measured quantities have the same polarity, the earth fault lies in the direction of the feeder, in case of an unbalanced polarity towards the bus bar.

Transient Earth Fault Relay type EWR22 Price

Please call ...

Applications

  1. Refinery
  2. Electronics industry
  3. Power industry
  4. Packaging Industry
  5. Petrochemical industry
  6. Automotive industry
  7. Marine and shipbuilding industry
  8. Road Construction industry
  9. Food industry
  10. Telecommunications industry
  11. Military and defense industry
  12. Oil and gas industry
  13. Power Plant industry
  14. Panel building companies
  15. Steel industry
  16. Instrumentation Companies
  17. Textile industry
  18. Education and Laboratory industry
  19. Publishing and Printing industry
  20. Rubber and plastics industry
  21. Manufacturing of metal products
  22. Machinery and equipment industry
  23. Industrial machinery, electrical appliances
  24. Manufacturing of radio, television, communication devices and gauging devices
  25. Measurement devices, medical and optical industry
  26. Sugar industry
  27. Materials and pharmaceutical products industry
  28. Chemical products industry
  29. The computer industry and related activities
  30. Engineering services industry
  31. Building industry
  32. Tile and Ceramic industry
  33. Cement, lime and plaster industry
  34. The banking industry and credit institutions
  35. Transport, warehousing and communications industry
  36. Railway and subway industry
  37. Meteorological industry
  38. Science and Technology Education
  39. Aerospace Industry
  40. Automation industry
  41. Photography and video recording
  42. Charger, inverter and converters manufacturers
  43. Cathodic protection companies
  44. Transformer manufacturing companies

COMMENTS