NL268786A - - Google Patents
Info
- Publication number
- NL268786A NL268786A NL268786DA NL268786A NL 268786 A NL268786 A NL 268786A NL 268786D A NL268786D A NL 268786DA NL 268786 A NL268786 A NL 268786A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/40—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to ratio of voltage and current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
- G01R27/10—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient
- G01R27/12—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient using hand generators, e.g. meggers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1190260A CH383494A (de) | 1960-10-25 | 1960-10-25 | Elektrischer Quotientenmesser, insbesondere für Schutzeinrichtungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL268786A true NL268786A (fr) |
Family
ID=4378000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL268786D NL268786A (fr) | 1960-10-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE609464A (fr) |
| CH (1) | CH383494A (fr) |
| GB (1) | GB932704A (fr) |
| NL (1) | NL268786A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3654424A (en) * | 1970-03-23 | 1972-04-04 | Robotron Corp | Quotient circuit |
| NO20161993A1 (en) * | 2016-12-15 | 2018-04-09 | Wirescan As | Method for measuring an impedance of an electric cable, a coupler arrangement and uses thereof |
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0
- NL NL268786D patent/NL268786A/xx unknown
-
1960
- 1960-10-25 CH CH1190260A patent/CH383494A/de unknown
-
1961
- 1961-10-23 GB GB3785761A patent/GB932704A/en not_active Expired
- 1961-10-23 BE BE609464A patent/BE609464A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH383494A (de) | 1964-10-31 |
| GB932704A (en) | 1963-07-31 |
| BE609464A (fr) | 1962-02-15 |