AT8705B - Switching device for induction measuring devices for equally loaded three-phase systems. - Google Patents
Switching device for induction measuring devices for equally loaded three-phase systems.Info
- Publication number
- AT8705B AT8705B AT8705DA AT8705B AT 8705 B AT8705 B AT 8705B AT 8705D A AT8705D A AT 8705DA AT 8705 B AT8705 B AT 8705B
- Authority
- AT
- Austria
- Prior art keywords
- switching device
- measuring devices
- phase systems
- equally loaded
- induction measuring
- Prior art date
Links
- 230000006698 induction Effects 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
<Desc/Clms Page number 1>
ÖSTERREICHISCHEUNIONELEKTRICITÄTS-GESELLSCHAFT ix WIEN.
EMI1.1
Es ist bekannt, dass unter Annahme gleicher Belastung und gleicher Verschiebung in den drei Leitungen Drehstrom durch ein gewöhnliches Wattmeter gemessen werden kann. Es ist dabei nothwendig, dass die Spannungsspule des Instrumentes einen Strom führt, der mit dem Strom der dickdrähtigen Spule dann in Phase ist, wenn das System inductionsfrei und gleichmässig belastet ist : von diesem Umstand wird in der Technik bei der bekannton Schaltungsweise der auf elektrodynamischem Princip beruhenden Zähler mit künstlichen Nullpunkt Gebrauch gemacht.
Bei Zählern nach Ferrairs Princip wird es dementsprechend darauf ankommen, sie im Drchstromnetz so anzuordnen, dass der in der Hauptstromspule Hiessende Strom in seiner Wirkung auf die bewegliche Scheibe vereinigt wird mit einem Nebenschlusstrop\ wetcher th)"gegen den IIauptstrom zurückbleibt, so lange das Netz gleichmässig und inductionsfreibelastetist.
EMI1.2
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
AUSTRIAN UNION ELECTRICITY GESELLSCHAFT ix VIENNA.
EMI1.1
It is known that, assuming the same load and the same displacement in the three lines, three-phase current can be measured by an ordinary wattmeter. It is necessary that the voltage coil of the instrument conducts a current which is in phase with the current of the thick-wire coil when the system is inductively-free and evenly loaded: this fact is used in technology with the circuitry based on the electrodynamic principle based counter with artificial zero point made use of.
In the case of meters according to Ferrair's principle, it will therefore be important to arrange them in the third-current network in such a way that the current in the main current coil is combined in its effect on the movable disk with a shunt drop against the main current as long as the network remains is evenly and induction-free load.
EMI1.2
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT8705T | 1900-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT8705B true AT8705B (en) | 1902-08-11 |
Family
ID=3501694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT8705D AT8705B (en) | 1900-12-10 | 1900-12-10 | Switching device for induction measuring devices for equally loaded three-phase systems. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT8705B (en) |
-
1900
- 1900-12-10 AT AT8705D patent/AT8705B/en active
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