DE553303C - Frame closure protection for machine units, especially for Ljungstroem units - Google Patents
Frame closure protection for machine units, especially for Ljungstroem unitsInfo
- Publication number
- DE553303C DE553303C DES90832D DES0090832D DE553303C DE 553303 C DE553303 C DE 553303C DE S90832 D DES90832 D DE S90832D DE S0090832 D DES0090832 D DE S0090832D DE 553303 C DE553303 C DE 553303C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- transformer
- relay
- coil
- frame closure
- 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
- 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
- H02H7/06—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 dynamo-electric generators; for synchronous capacitors
- H02H7/062—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 dynamo-electric generators; for synchronous capacitors for parallel connected generators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM
24. JUNI 1932ISSUED ON
June 24, 1932
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
M 553303 KLASSE 21 c GRUPPE M 553303 CLASS 21c GROUP
Patentiert im Deutschen Reiche vom 29. März 1929 abPatented in the German Empire on March 29, 1929
Die Erfindung betrifft einen Gestellschlußschutz für Maschinenaggregate, z. B. für Ljungström-Aggregate, bei denen die Kraftmaschine zwei Generatoren antreibt, die infolge der mechanischen Anordnung stets synchron laufen und gemeinsam ein- und ausgeschaltet werden. Erfindungsgemäß sind zur Erfassung des Gestellschlusses die Sternpunkte beider Generatorwicklungen über eine Induktivität (z. B. Drosselspule oder Transformator) miteinander verbunden, deren Mittelpunkt geerdet ist. Vorteilhaft verbindet man die Sternpunkte beider Generatorwicklungen über die Primärwicklung eines Transformators, deren Mittelpunkt mittelbar über einen Widerstand (Ohmscher, induktiver oder z. B. auch Wandler) oder unmittelbar geerdet ist. Für den Fall, daß man den Mittelpunkt der Primärwicklung dieses Transformators über einen Widerstand erdet, schließt man erfindungsgemäß die beiden Sekundärwicklungshälften des Transformators unmittelbar so in sich kurz, daß bei Gestellschluß, also bei in den Primärwicklungshälften entgegengesetzt fließenden Strömen, ein Strom in dem Sekundärkreis fließt. Für den Fall, daß der Mittelpunkt der Primärwicklung unmittelbar geerdet ist, schließt man erfindungsgemäß die beiden Sekundärwicklungshälften so über einen Widerstand in sich kurz, daß bei Gestellschluß ebenfalls ein Strom in dem Sekundärkreis fließt.The invention relates to a frame closure protection for machine units, for. B. for Ljungström units in which the prime mover drives two generators, which as a result the mechanical arrangement always run synchronously and switched on and off together will. According to the invention, the star points of both generator windings are to detect the frame closure via a Inductance (e.g. choke coil or transformer) connected to each other, their center point is grounded. It is advantageous to connect the star points of both generator windings via the primary winding of a transformer, the center of which is indirectly via a resistor (ohmic, inductive or z. B. also converter) or is directly grounded. In the event that you are the focus the primary winding of this transformer is grounded through a resistor, one closes according to the invention, the two secondary winding halves of the transformer directly so short in itself that when the frame is closed, i.e. opposite in the primary winding halves flowing currents, a current flows in the secondary circuit. In the event that the The center of the primary winding is directly grounded, according to the invention, the two secondary winding halves so short via a resistor that when the frame closes a current also flows in the secondary circuit.
Wenn man den Widerstand zwischen Mittelpunkt der Primärwicklung des Transformators und Erde legt, so legt man erfindungsgemäß das Gestellschlußrelais parallel zu dem Widerstand. Man kann aber auch das Gestellschlußrelais so von den beiden Sekundärwicklungshälften des Transformators speisen, daß das Relais bei Gestellschluß, d. h. also bei in den Primärwicklungshälften entgegengesetzt fließenden Strömen, anspricht. Man kann zur Erfassung des Gestellschlusses auch ein wattmetrisches Relais verwenden, dessen eine Spule von dem Summenstrom der in der gemeinsamen Zuleitung liegenden Stromwandlergruppen durchflossen wird, während die andere Spule von den gegensinnig in Reihe geschalteten Sekundärwicklungshälften des zwischen den beiden Sternpunkten liegenden Transformators gespeist wird. Man kann die Spannungsspule bei dieser Schaltung auch parallel zu dem zwischen Mittelpunkt und Erde geschalteten Widerstand legen. Es ist auch möglich, in der Zuleitung zu jedem Generator Stromwandlergruppen anzuordnen, die in Acht geschaltet sind, und die Stromspulen des wattmetrischen Relais von diesen Stromwandlern zu speisen.If you consider the resistance between the midpoint of the primary winding of the transformer and earth, then according to the invention, the frame closing relay is connected in parallel with the resistor. But you can also do that Feed the frame closing relay from the two secondary winding halves of the transformer, that the relay when the frame closes, d. H. so in the opposite case in the primary winding halves flowing currents. A wattmetric relay can also be used to detect the frame closure, whose one coil of the total current lying in the common supply line Current transformer groups flowed through, while the other coil of the opposite Secondary winding halves connected in series between the two star points lying transformer is fed. With this circuit, the voltage coil can also be parallel to the one between Put the center point and earth connected resistor. It is also possible in the supply line to each generator to arrange current transformer groups that are connected in eight and to feed the current coils of the wattmetric relay from these current transformers.
Wenn man den Mittelpunkt der Primärwicklung des Transformators unmittelbar erdet, so ist es zweckmäßig, das Gestellschlußrelais in Reihe mit einem WiderstandIf you put the center point of the primary winding of the transformer immediately grounded, it is useful to put the frame relay in series with a resistor
*) Von dem Patentsitcher sind als die Erfinder angegeben worden:*) The patentsitcher named the following as the inventors:
Dr.-Ing. Robert Schimpf in Berlin-Schlachtensee und Dipl.-Ing. Hermann Keugebauer in Berlin-Spandau.Dr.-Ing. Robert Schimpf in Berlin-Schlachtensee and Dipl.-Ing. Hermann Keugebauer in Berlin-Spandau.
553803553803
von den beiden gegensinnig in Reihe geschalteten Sekundärwicklungshälften des Transformators aus zu speisen. Man kann ebenso natürlich auch das Gestellschlußrelais parallel zu dem in der Sekundärwicklung des Transformators befindlichen Widerstand legen.of the two secondary winding halves of the transformer connected in series in opposite directions to dine out. Of course, you can also use the frame closing relay in parallel to the resistor located in the secondary winding of the transformer.
Die Zeichnung zeigt Ausführungsbeispiele der Erfindung. Gemäß Abb. ι sind die Wicklungssternpunkte der beiden Generatoren 2 und 3 über die Primärwicklung des Transformators 4 miteinander verbunden, deren Mittelpunkt über einen Widerstand 5 geerdet ist. Die Sekundärseite des Transformators· besteht aus den beiden Wicklungshälften 41 und 42, die gegensinnig in Reihe geschaltet sind.The drawing shows exemplary embodiments of the invention. According to Fig. Ι are the winding star points of the two generators 2 and 3 via the primary winding of the transformer 4 connected to one another, the center of which is grounded via a resistor 5 is. The secondary side of the transformer consists of the two winding halves 41 and 42, which are connected in series in opposite directions.
Gemäß Abb. 2 ist der Mittelpunkt der Primärwicklung des Transformators unmittelbar geerdet, und die Sekundärwicklungshälften 41 und 42 sind über den Widerstand 6 kurzgeschlossen.According to Fig. 2, the center point of the transformer's primary winding is immediate grounded, and the secondary winding halves 41 and 42 are connected through the resistor 6 shorted.
Abb. 3 zeigt eine Ausführung, bei der die Sekundärwicklungshälften 41 und 42 das Gestellschlußrelais 7 speisen, während der Mittelpunkt der Primärwicklung über den Widerstand 5 geerdet ist.Fig. 3 shows an embodiment in which the secondary winding halves 41 and 42 the frame closing relay 7 feed, while the center point of the primary winding is grounded via the resistor 5.
Gemäß Abb. 4 wird die eine Spule des wattmetrischen Relais 8 von der Stromwandlergruppe 9 gespeist, während die andere Spule parallel zum Widerstand 5 liegt. Das wattmetrische Relais 8 ist so geschaltet, daß es bei Gestellschluß anspricht, also wenn der Summenstrom in der Stromwandlergruppe 9 Null ist.According to Fig. 4, one coil of the wattmetric relay 8 is from the current transformer group 9, while the other coil is parallel to resistor 5. The wattmetric Relay 8 is switched so that it responds when the frame closes, i.e. when the total current in the current transformer group 9 Is zero.
Bei der Ausführung nach Abb. 5 wird die eine Spule des wattmetrischen Relais 10 von den Stromwandlergruppen 11 und 12 gespeist, während die andere Spule parallel zu dem Widerstand 5 liegt. Das wattmetrische Relais ist so geschaltet, daß es bei Gestellschluß anspricht, also wenn zwischen den in Acht geschalteten Stromwandlergruppen 11 und 12 ein Summenstrom fließt.In the embodiment according to Fig. 5, one coil of the wattmetric relay 10 is from fed to current transformer groups 11 and 12, while the other coil is parallel to the resistor 5. The wattmetric relay is switched in such a way that it responds when the frame closes, i.e. when between the eight switched Current transformer groups 11 and 12 a total current flows.
Gemäß Abb. 6 wird das Gestellschlußrelais 13 in Reihe mit dem Widerstand 14 von den Sekundärwicklungshälften 41 und 42 des Transformators 4 gespeist, während der Mittelpunkt der Primärwicklung unmittelbar geerdet ist.According to Fig. 6, the frame closure relay 13 is in series with the resistor 14 of the secondary winding halves 41 and 42 of the transformer 4 are fed while the center point the primary winding is directly grounded.
Gemäß Abb. 7 wird dagegen das Gestellschlußrelais 15 parallel zu dem Widerstand 14 von den Sekundärwicklungshälften 41 und 42 des Transformators 4 gespeist. 55According to FIG. 7, on the other hand, the frame closing relay 15 is parallel to the resistor 14 fed by the secondary winding halves 41 and 42 of the transformer 4. 55
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL36257D NL36257C (en) | 1929-03-29 | ||
DES90832D DE553303C (en) | 1929-03-29 | 1929-03-29 | Frame closure protection for machine units, especially for Ljungstroem units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES90832D DE553303C (en) | 1929-03-29 | 1929-03-29 | Frame closure protection for machine units, especially for Ljungstroem units |
Publications (1)
Publication Number | Publication Date |
---|---|
DE553303C true DE553303C (en) | 1932-06-24 |
Family
ID=7516106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES90832D Expired DE553303C (en) | 1929-03-29 | 1929-03-29 | Frame closure protection for machine units, especially for Ljungstroem units |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE553303C (en) |
NL (1) | NL36257C (en) |
-
0
- NL NL36257D patent/NL36257C/xx active
-
1929
- 1929-03-29 DE DES90832D patent/DE553303C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL36257C (en) |
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