DEVICE FOR BALANCE PROTECTION COMBINED WITH TRANSVERSE DIFFERENTIAL PROTECTION FOR THREE-PHASE HIGH-VOLTAGE ELECTRICAL INSTALLATIONS Russian patent published in 2018 - IPC H02H3/16 

Abstract RU 2652381 C1

FIELD: electrical engineering.

SUBSTANCE: to be used in electrical engineering. Device for detecting interphase short circuits and interturn faults in phases for three-phase high-voltage electrical installations consists of three conductors of a coaxial type, representing a current-conducting core and an external conductor separated by a dielectric located at the same distance from the magnetic field sensor, in this case, the input cables of the electrical installation are connected to the current-conducting core of the coaxial type conductors, and the return cables from the electrical installation are connected to the external conductor. In the space between the current-conducting core and the outer conductor of each coaxial type conductor, magnetic sensitive elements are mounted, and the magnetic field detected by the magnetic sensor with a value other than zero is a phase-to-phase short-circuit indicator, and a violation of the equality of the currents measured by magnetic sensitive elements indicates the interturn fault in the phases of the electrical installation.

EFFECT: expansion of functionality through the implementation of transverse differential protection, which allows to determine the interturn faults in phases.

1 cl, 2 dwg

Similar patents RU2652381C1

Title Year Author Number
DEVICE FOR PROTECTIVE DISCONNECTION OF ELECTRIC EQUIPMENT 0
  • Martinovich Nikolaj Petrovich
SU817845A1
DISCONNECTING PROTECTIVE DEVICE 2003
  • Kostruba S.I.
  • Khalin E.V.
  • Strebkov D.S.
RU2247455C1
METHOD OF TUNING OF CURRENT RELAY MEMBER OF MAGNETO- CONTROLLED SEALED CONTACT 0
  • Kletsel Mark Yakovlevich
  • Musin Vyacheslav Vasilevich
  • Polyakov Valentin Efimovich
SU1718288A2
DEVICE FOR MAXIMUM CURRENT PROTECTION OF ELECTRICAL INSTALLATIONS 2021
  • Isabekov Dauren Dzhambulovich
  • Goriunov Vladimir Nikolaevich
  • Zhilenko Elena Petrovna
RU2779908C1
OVERCURRENT PROTECTION DEVICE WITH UNDERVOLTAGE BLOCKING 2022
  • Polishchuk Vladimir Iosifovich
  • Isabekov Dauren Dzhambulovich
  • Boranbaeva Zamira Kairbekovna
RU2783868C1
OVERCURRENT PROTECTION DEVICE 2022
  • Polishchuk Vladimir Iosifovich
  • Isabekov Dauren Dzhambulovich
  • Postoyankova Kseniya Yurevna
RU2786632C1
CURRENT PROTECTION DEVICE WITH HEALTH MONITORING 2022
  • Polishchuk Vladimir Iosifovich
  • Isabekov Dauren Dzhambulovich
  • Kostyrya Ekaterina Ivanovna
RU2785275C1
CURRENT PROTECTION DEVICE 2022
  • Polishchuk Vladimir Iosifovich
  • Isabekov Dauren Dzhambulovich
  • Boranbaeva Zamira Kairbekovna
RU2784026C1
OVERCURRENT PROTECTION DEVICE WITH HEALTH DIAGNOSTICS 2022
  • Polishchuk Vladimir Iosifovich
  • Isabekov Dauren Dzhambulovich
  • Kostyrya Ekaterina Ivanovna
RU2783803C1
SERIES COMPENSATION IN ALTERNATING-CURRENT MACHINES 1998
  • Lejen Mats
  • Ertmar Lars
  • Njugren Jan-Anders
  • Templin Peter
RU2201027C2

RU 2 652 381 C1

Authors

Chigvintsev Sergej Viktorovich

Ishmukhamedov Islam Kamilevich

Dates

2018-04-26Published

2017-04-12Filed