DE102017119029B4 - Method and device for measuring electrotechnical machines with different parameters - Google Patents
Method and device for measuring electrotechnical machines with different parameters Download PDFInfo
- Publication number
- DE102017119029B4 DE102017119029B4 DE102017119029.5A DE102017119029A DE102017119029B4 DE 102017119029 B4 DE102017119029 B4 DE 102017119029B4 DE 102017119029 A DE102017119029 A DE 102017119029A DE 102017119029 B4 DE102017119029 B4 DE 102017119029B4
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- test
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- different parameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
Abstract
Verfahren zum Messen elektrotechnischer Maschinen, insbesondere Statoren für Elektromotoren, mit unterschiedlichen Parametern wie Kapazitäten, Widerstände und Induktivitäten sowie Stoßspannungen mit Teilentladungsprüfung, dadurch gekennzeichnet, dass jeder Kabelschuh (38) der Prüflinge (24) ohne Kabelverdrahtung gegen eine Doppelschiene (42) gedrückt wird, wobei die Ansteuerung und Kontaktierung ohne Relais mechanisch erfolgt.Method for measuring electrotechnical machines, in particular stators for electric motors, with different parameters such as capacitances, resistances and inductances as well as impulse voltages with partial discharge test, characterized in that each cable lug (38) of the test objects (24) is pressed against a double rail (42) without cable wiring, whereby the control and contacting takes place mechanically without a relay.
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Messen elektrotechnischer Maschinen mit unterschiedlichen Parametern, insbesondere von Statoren für Elektromotore.The invention relates to a method and a device for measuring electrotechnical machines with different parameters, in particular stators for electric motors.
An Statoren der Automotivbranche müssen unterschiede Messungen für Widerstände (im mOhm-Bereich durch Vierleitertechnik), Induktivitäten, Kapazitäten und Stoßspannungen mit Teilentladungsprüfung durchgeführt werden. Da die Messwerte von Kapazitäten, Widerständen und Induktivitäten teils im µBereich liegen, hingegen die Messungen der Stoß- und Teilentladungsprüfung im kV-Bereich liegen, passen diese Prüfungen physikalisch nicht zusammen.Different measurements for resistances (in the mOhm range using four-wire technology), inductivities, capacitances and surge voltages with partial discharge testing must be carried out on stators in the automotive industry. Since the measured values of capacitances, resistances and inductances are partly in the µ range, whereas the measurements of the surge and partial discharge test are in the kV range, these tests do not physically fit together.
Aus diesem Grund ist es bekannt, entweder eine Umschaltmatrix oder getrennte Aufschaltsysteme zu verwenden.For this reason it is known to use either a switching matrix or separate connection systems.
Durch die Verkabelung einer Umschaltmatrix treten Impulse bis 10.000 V sowie Leitungsinduktivitäten und Kapazitäten im Bereich der Relais auf, die die Stoß- und Teilentladungsprüfung erheblich negativ beeinflussen.The wiring of a switchover matrix results in pulses of up to 10,000 V as well as line inductances and capacitances in the area of the relays, which have a significant negative impact on the surge and partial discharge test.
Getrennte Aufschaltsysteme haben den Nachteil großer Taktzeiten durch das Kontaktieren der Prüflinge zunächst auf Bus 1, danach auf Bus 2.Separate connection systems have the disadvantage of long cycle times due to the contacting of the test objects first on bus 1, then on bus 2.
Aus
Gegenstand von
In
Schließlich zeigt
Der Erfindung liegt die Aufgabe zugrunde, eine Lösung anzugeben, die bei der zur Prüfung der unterschiedlichen Größen alle Prüflinge nur einmal kontaktiert werden müssen.The invention is based on the object of specifying a solution in which all test objects have to be contacted only once in order to test the different sizes.
Wie sich aus den Patentansprüchen ergibt, werden zur Lösung dieses Problems die Litzen mit ihren Kabelschuhen mit einem bestimmten Druck, der eingestellt werden kann, auf eine zweipolige Kupfer- oder Messingleiste gedrückt. An den dachförmig gefrästen Leisten ist der Kontakt mit den Kabelschuhen gleichmäßig groß, so dass kaum Induktivitäten und keinerlei Teilentladungen entstehen. Die Verschaltung erfolgt ohne Relais über voneinander getrennte Zylinder, die mechanisch, elektromechanisch oder pneumatisch angesteuert werden, so dass im Gegensatz zu einem Relais keinerlei Kapazitäten entstehen. Aufgrund der gefrästen Kupfer- oder Messingschienen lassen sich bei Nachbauten absolut reproduzierbare Messergebnisse erzielen. Der Aufbau selbst ist auch bei hohen Spannungen frei von Teilentladungen.As can be seen from the patent claims, to solve this problem, the strands with their cable lugs are pressed onto a two-pole copper or brass strip with a certain pressure that can be adjusted. The contact with the cable lugs on the roof-shaped milled strips is uniform, so that hardly any inductances and no partial discharges occur. The interconnection takes place without relays via separate cylinders, which are controlled mechanically, electromechanically or pneumatically, so that, in contrast to a relay, no capacities arise. Due to the milled copper or brass rails, absolutely reproducible measurement results can be achieved with replicas. The structure itself is free from partial discharges even at high voltages.
Die Erfindung ist nachstehend an einem Ausführungsbeispiel erläutert, das in der Zeichnung dargestellt ist. In dieser zeigen:
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1 die perspektivische Darstellung einer Messstation mit einer Vorrichtung gemäß der Erfindung, -
2 die Seitenansicht der Station der1 , -
3 die Draufsicht auf die Station der1 und2 , -
4 einen Querschnitt in der Ebene IV-IV der2 , -
5 in vergrößerter Darstellung die perspektivische Ansicht der Vorrichtung gemäß der Erfindung, -
6 eine nochmals vergrößerte Ansicht der Vorrichtung der5 und -
7 die schematische Darstellung einer Doppelschiene mit Andruckstempel.
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1 the perspective view of a measuring station with a device according to the invention, -
2 the side view of the station of the1 , -
3 the top view of the station of the1 and2 , -
4th a cross-section in the plane IV-IV of2 , -
5 an enlarged view of the perspective view of the device according to the invention, -
6th a further enlarged view of the device of5 and -
7th the schematic representation of a double rail with pressure stamp.
Wie die
Wie
Die in den
Von jedem Ansteuerzylinder
Insbesondere die
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017119029.5A DE102017119029B4 (en) | 2017-08-21 | 2017-08-21 | Method and device for measuring electrotechnical machines with different parameters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017119029.5A DE102017119029B4 (en) | 2017-08-21 | 2017-08-21 | Method and device for measuring electrotechnical machines with different parameters |
Publications (2)
Publication Number | Publication Date |
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DE102017119029A1 DE102017119029A1 (en) | 2019-02-21 |
DE102017119029B4 true DE102017119029B4 (en) | 2021-01-07 |
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Application Number | Title | Priority Date | Filing Date |
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DE102017119029.5A Active DE102017119029B4 (en) | 2017-08-21 | 2017-08-21 | Method and device for measuring electrotechnical machines with different parameters |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102020117586B4 (en) | 2020-07-03 | 2022-03-24 | Deutronic Elektronik Gmbh | Device for testing components of electrical machines, in particular stators and rotors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE846135C (en) * | 1949-07-03 | 1952-08-11 | Demag Zug Gmbh | Test stand for electric motors, especially three-phase short-circuit rotor built-in motors |
DE1212610B (en) * | 1962-08-01 | 1966-03-17 | Licentia Gmbh | Device for the quick connection of electrical devices on a test bench |
DE3634802A1 (en) * | 1986-10-13 | 1988-04-21 | Bbc Brown Boveri & Cie | Arrangement for selective detection of a short to earth in the rotor circuit of an electric machine |
DE102012220798A1 (en) * | 2011-11-18 | 2013-05-23 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Method and system for impact testing for a stator with bar windings |
-
2017
- 2017-08-21 DE DE102017119029.5A patent/DE102017119029B4/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE846135C (en) * | 1949-07-03 | 1952-08-11 | Demag Zug Gmbh | Test stand for electric motors, especially three-phase short-circuit rotor built-in motors |
DE1212610B (en) * | 1962-08-01 | 1966-03-17 | Licentia Gmbh | Device for the quick connection of electrical devices on a test bench |
DE3634802A1 (en) * | 1986-10-13 | 1988-04-21 | Bbc Brown Boveri & Cie | Arrangement for selective detection of a short to earth in the rotor circuit of an electric machine |
DE102012220798A1 (en) * | 2011-11-18 | 2013-05-23 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Method and system for impact testing for a stator with bar windings |
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Representative=s name: KUHNEN & WACKER PATENT- UND RECHTSANWALTSBUERO, DE |
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