GB860481A - A system for measuring the supply or consumption of direct current - Google Patents
A system for measuring the supply or consumption of direct currentInfo
- Publication number
- GB860481A GB860481A GB28367/57A GB2836757A GB860481A GB 860481 A GB860481 A GB 860481A GB 28367/57 A GB28367/57 A GB 28367/57A GB 2836757 A GB2836757 A GB 2836757A GB 860481 A GB860481 A GB 860481A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- current
- resistors
- voltage
- resistor
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
- G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
860,481. Magnetic circuits. KRIZIKKARLIN VYVOJOVY ZAVOD, NARODNI PODNIK, TOMANEK, E., and POLACEK, A. Sept. 9, 1957 [Oct. 4, 1956], No. 28367/57. Class 40 (9). [Also in Group XXXVI] In a system for determining the magnitude and direction of a direct current i, a voltage proportional to i is supplied to a measuring-device 9, and is derived from the difference in voltage drops across two resistors 6, 7 connected respectively in the working winding 1 and the polarizing winding 3 circuits of a transductor T, the control winding 2 of which is fed with the current i. An alternating supply voltage is applied across the working winding 1 in series with a rectifier bridge 4, the rectified output current producing a voltage drop across resistor 6. The supply voltage also feeds rectifier bridge 5 through an insulating transformer 11, and the rectified current feeds in series the polarizing winding 3 and a resistor 7. The difference in the voltage drops across resistors 6 and 7 is measured by the instrument 9 having a centre zero. Initially the instrument is balanced to zero, in the absence of the current i, by varying either or both the resistors 6, 7. A smoothing capacitor 10, and a limiting resistor 8 are incorporated in the polarizing winding circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS860481X | 1956-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB860481A true GB860481A (en) | 1961-02-08 |
Family
ID=5456258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28367/57A Expired GB860481A (en) | 1956-10-04 | 1957-09-09 | A system for measuring the supply or consumption of direct current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB860481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2141241A (en) * | 1983-04-21 | 1984-12-12 | Northern Telecom Ltd | Electrical loop test circuit |
-
1957
- 1957-09-09 GB GB28367/57A patent/GB860481A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2141241A (en) * | 1983-04-21 | 1984-12-12 | Northern Telecom Ltd | Electrical loop test circuit |
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