FR541098A - Method for protecting, in the event of earthing, polyphase networks without accessible neutral point - Google Patents

Method for protecting, in the event of earthing, polyphase networks without accessible neutral point

Info

Publication number
FR541098A
FR541098A FR541098DA FR541098A FR 541098 A FR541098 A FR 541098A FR 541098D A FR541098D A FR 541098DA FR 541098 A FR541098 A FR 541098A
Authority
FR
France
Prior art keywords
earthing
protecting
event
neutral point
polyphase networks
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
Other languages
French (fr)
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.)
BROWN
BBC Brown Boveri AG Germany
Original Assignee
BROWN
Brown Boveri und Cie AG Germany
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 BROWN, Brown Boveri und Cie AG Germany filed Critical BROWN
Application granted granted Critical
Publication of FR541098A publication Critical patent/FR541098A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08Limitation or suppression of earth fault currents, e.g. Petersen coil
FR541098D 1920-09-16 1921-09-15 Method for protecting, in the event of earthing, polyphase networks without accessible neutral point Expired FR541098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH169175X 1920-09-16

Publications (1)

Publication Number Publication Date
FR541098A true FR541098A (en) 1922-07-22

Family

ID=4421334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541098D Expired FR541098A (en) 1920-09-16 1921-09-15 Method for protecting, in the event of earthing, polyphase networks without accessible neutral point

Country Status (4)

Country Link
CH (1) CH91421A (en)
DE (1) DE351965C (en)
FR (1) FR541098A (en)
GB (1) GB169175A (en)

Also Published As

Publication number Publication date
CH91421A (en) 1921-11-01
DE351965C (en) 1922-04-18
GB169175A (en) 1922-12-07

Similar Documents

Publication Publication Date Title
FR541098A (en) Method for protecting, in the event of earthing, polyphase networks without accessible neutral point
FR525639A (en) Method for the parallel coupling of current generators, polyphase
FR513975A (en) Method for preventing harmful earth currents in networks with capacitance distributed asymmetrically between the phases of the network
FR590956A (en) Method for securing electrical conductors in the grooves of electrical rotors
FR562485A (en) Clamp for insulation
FR569656A (en) Hollow key block for branch junction
FR535414A (en) Device for the protection of electrical networks comprising overhead lines
FR547472A (en) Hand shear for cutting metal bars
FR543707A (en) Method for long distance vapor transmission
FR534591A (en) Process for the protection of electrical installations against overvoltages
CA202715A (en) Machine for removing defective surfaces of metal bars
FR790885A (en) Tube intended to contain and protect conductors of electric lines, method for manufacturing it and machine for implementing this method
FR495670A (en) Asynchronous synchronized machines for polyphase alternating currents
FR541747A (en) Fastening method for electrical insulators
FR524031A (en) Advanced Tie Tie
FR733988A (en) Connection method for the protection of parallel polyphase lines against earthing
DK27342C (en) Three-phase Ferraris relay for protection of electrical systems.
FR789472A (en) Process for the complete selective protection of electrical lines and networks
ES74975A1 (en) Improvements in the conduits for the protection of electrical cables.
ES79452A1 (en) Procedure for the compensation of the asymmetry resulting from the inequality of the individual capacities of the different conductors of a network protected by self-inductions of the ground connection.
FR532467A (en) Oil circuit breaker for high currents
DK59144C (en) Method for Preparation of Neutral N-Substituted Tropasyreamide Derivatives.
FR540743A (en) Braking process for single-phase commutator motors
FR523224A (en) Distribution system for asynchronous polyphase motors
FR544512A (en) Sawing machine for cutting stone