GB918124A - Improvements in or relating to electric circuit protection and/or indication arrangements - Google Patents

Improvements in or relating to electric circuit protection and/or indication arrangements

Info

Publication number
GB918124A
GB918124A GB576859A GB576859A GB918124A GB 918124 A GB918124 A GB 918124A GB 576859 A GB576859 A GB 576859A GB 576859 A GB576859 A GB 576859A GB 918124 A GB918124 A GB 918124A
Authority
GB
United Kingdom
Prior art keywords
semi
rectifiers
series
relating
arrangements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB576859A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB918124A publication Critical patent/GB918124A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/1203—Circuits independent of the type of conversion
    • H02H7/1206—Circuits independent of the type of conversion specially adapted to conversion cells composed of a plurality of parallel or serial connected elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Rectifiers (AREA)

Abstract

918,124. Protective arrangements. SIEMENS-SCHUCKERTWERKE A.G. Feb. 19, 1959 [Feb. 20, 1958], No. 5768/59. Class 38 (5). In an arrangement for protecting series - connected semi - conductor rectifiers, a bridge circuit is formed by these rectifiers 4, 5 in combination with resistors 7, 8, Fig. 1, or with other seriesconnected semi-conductor rectifiers, Fig. 2 (not shown), and a device is connected between normally equipotential points of the bridge for causing an indication or switching operation should a rectifier fail. Fig. 1 shows the primary winding of a transformer 12 connected in series with a variable resistor 11 between the equipotential points 9, 10, the secondary winding of the transformer energizing an indicating or tripping device when the bridge becomes unbalanced. Alternatively a relay in series with the resistor 11 may be connected between the points 9, 10. Figs. 3 to 10 (not shown) illustrate the application of the invention to various rectifier arrangements in which seriesconnected semi-conductor rectifiers are used.
GB576859A 1958-02-20 1959-02-19 Improvements in or relating to electric circuit protection and/or indication arrangements Expired GB918124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES57038A DE1052557B (en) 1958-02-20 1958-02-20 Monitoring device for an arrangement with semiconductor valves

Publications (1)

Publication Number Publication Date
GB918124A true GB918124A (en) 1963-02-13

Family

ID=7491530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB576859A Expired GB918124A (en) 1958-02-20 1959-02-19 Improvements in or relating to electric circuit protection and/or indication arrangements

Country Status (4)

Country Link
CH (1) CH370481A (en)
DE (1) DE1052557B (en)
FR (1) FR1222586A (en)
GB (1) GB918124A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160091B (en) * 1961-08-16 1963-12-27 Bbc Brown Boveri & Cie Monitoring device for the series connection of several semiconductor elements
DE1170051B (en) * 1961-08-18 1964-05-14 Licentia Gmbh Arrangement for intrinsically safe monitoring of the terminal voltage of a power supply unit
DE1245501B (en) * 1962-06-12 1967-07-27 Elektroprojekt Berlin Veb Circuit for the detection of malfunctions with rectifiers connected in series
CH629048A5 (en) * 1978-01-04 1982-03-31 Bbc Brown Boveri & Cie SEMICONDUCTOR THREE-PHASE BRIDGE CIRCUIT WITH A MONITORING DEVICE FOR THE SEMICONDUCTOR VALVES.

Also Published As

Publication number Publication date
CH370481A (en) 1963-07-15
FR1222586A (en) 1960-06-10
DE1052557B (en) 1959-03-12

Similar Documents

Publication Publication Date Title
GB918124A (en) Improvements in or relating to electric circuit protection and/or indication arrangements
GB1019245A (en) Improvements in or relating to electrical overload protection apparatus
GB1115467A (en) Improvements in or relating to electrical circuit protection devices
GB981752A (en) Improvements in or relating to electrical protective relays
BE650550A (en) Semiconductor device for rectifying and limiting strong electric currents
GB1255795A (en) Earth leakage protection devices
GB1254788A (en) Improvements in or relating to devices for indicating the condition of a switch
GB858646A (en) Improvements in or relating to the protection of alternating current generators
SU120249A1 (en) Differential protection of electrical installations
GB905188A (en) Mains-fed circuit arrangement including a half-wave semi-conductor rectifier device
GB845477A (en) Improvements in or relating to voltage protection devices
GB924717A (en) Circuit for protecting controllable semiconductor components against over-loading
GB933473A (en) Improvements in and relating to transformer switching circuits
FR1339934A (en) Device forming combined fault voltage and fault current protection circuit breaker or the like
GB958775A (en) Improvements in and relating to electrical relay circuit arrangements
GB955400A (en) Improvements in or relating to fault indicating arrangements for electric current rectifier circuits
GB886008A (en) Electro-magnetic relay circuits
GB830730A (en) Improvements in or relating to polyphase electric rectifier circuits
SU423222A1 (en) DEVICE FOR PROTECTION AGAINST CURRENT CIRCUIT SHEETS OF A RECTIFIED TRANSFORMER
GB914127A (en) Improvements in or relating to current converter installations employing semi-conductor rectifier elements
GB838238A (en) Improvements in or relating to voltage responsive relay circuit arrangements
GB1350063A (en) Protection arrangements for ac distribution circuits
GB858287A (en) A protective arrangement for the protection of three-phase electric systems
BE575251A (en) AC circuit protection device by instantaneous current limitation in the event of an overload.
GB710025A (en) Improvements in and relating to overload protecting systems