GB1085465A - Arrangement for limiting exess currents - Google Patents
Arrangement for limiting exess currentsInfo
- Publication number
- GB1085465A GB1085465A GB5365A GB5365A GB1085465A GB 1085465 A GB1085465 A GB 1085465A GB 5365 A GB5365 A GB 5365A GB 5365 A GB5365 A GB 5365A GB 1085465 A GB1085465 A GB 1085465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactors
- inductor
- current
- resonant circuit
- circuit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/021—Current limitation using saturable reactors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
1,085,465. Transmission and distribution networks. LICENTIA PATENT VERWALTUNGS G.m.b.H. Jan. 1, 1965 [Jan. 4, 1964; Feb. 28, 1964], No. 53/65. Heading H2H. A circuit for preventing excess current in the connecting link between two inter-connected A.C. power networks I and II includes two reactors, such as a capacitor C and an inductor L, which have reactances of opposite sign and of the same magnitude and which form a series resonant circuit of low impedance under normal conditions; one of the reactors is currentdependent, e.g. the inductor L may be saturable, so that when an excess current flows in the link the resonant circuit is de-tuned, whereby the total impedance increases considerably to limit the current to a predetermined value. The odd harmonics which arise during operation of the circuit may be suppressed by providing tuned circuits l, C 3 , C 2 , C 1 associated as shown with the inductor L. The reactors may be connected to the secondary winding of a transformer having its primary winding in the connecting link (Fig. 4, not shown). A shunt impedance may be connected in parallel with the resonant circuit to provide a path taking part of the current flow (Fig. 7, not shown). In another embodiment (Fig. 6, not shown), the capacitive reactance is made current-dependent by connecting a saturable reactor together with a resistor in parallel with the capacitor C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL46719A DE1213039B (en) | 1964-01-04 | 1964-01-04 | Arrangement to limit overcurrents |
DEL47161A DE1243771B (en) | 1964-02-28 | 1964-02-28 | Device for limiting overcurrents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1085465A true GB1085465A (en) | 1967-10-04 |
Family
ID=25985778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5365A Expired GB1085465A (en) | 1964-01-04 | 1965-01-01 | Arrangement for limiting exess currents |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT249780B (en) |
CH (1) | CH439458A (en) |
FR (1) | FR1419354A (en) |
GB (1) | GB1085465A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2534944A (en) * | 2015-01-30 | 2016-08-10 | Gridon Ltd | Fault current limiter |
-
1964
- 1964-12-22 AT AT1085564A patent/AT249780B/en active
- 1964-12-23 CH CH1662664A patent/CH439458A/en unknown
- 1964-12-31 FR FR554A patent/FR1419354A/en not_active Expired
-
1965
- 1965-01-01 GB GB5365A patent/GB1085465A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2534944A (en) * | 2015-01-30 | 2016-08-10 | Gridon Ltd | Fault current limiter |
Also Published As
Publication number | Publication date |
---|---|
FR1419354A (en) | 1965-11-26 |
AT249780B (en) | 1966-10-10 |
CH439458A (en) | 1967-07-15 |
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