JPS539581A - Detecting method for reactive power - Google Patents
Detecting method for reactive powerInfo
- Publication number
- JPS539581A JPS539581A JP8375976A JP8375976A JPS539581A JP S539581 A JPS539581 A JP S539581A JP 8375976 A JP8375976 A JP 8375976A JP 8375976 A JP8375976 A JP 8375976A JP S539581 A JPS539581 A JP S539581A
- Authority
- JP
- Japan
- Prior art keywords
- reactive power
- detecting method
- value
- couple
- integration
- 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.)
- Pending
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To detect reactive power without detection delay and being hardly affected by waveform distortion, by taking detection value of reactive power from value proportional to absolute value of difference between outputs obtained by integration of detected zero passing points of load current with a couple of integrating means.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8375976A JPS539581A (en) | 1976-07-14 | 1976-07-14 | Detecting method for reactive power |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8375976A JPS539581A (en) | 1976-07-14 | 1976-07-14 | Detecting method for reactive power |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS539581A true JPS539581A (en) | 1978-01-28 |
Family
ID=13811482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8375976A Pending JPS539581A (en) | 1976-07-14 | 1976-07-14 | Detecting method for reactive power |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS539581A (en) |
-
1976
- 1976-07-14 JP JP8375976A patent/JPS539581A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS539581A (en) | Detecting method for reactive power | |
JPS53172A (en) | Frequency detection method | |
JPS52148787A (en) | Phase delay detecting compensation method for control system | |
JPS5612568A (en) | Body detecting device | |
JPS54101143A (en) | Protective relay | |
JPS53133470A (en) | Convergence value detecting system | |
JPS52100150A (en) | Failure section detecting method of cable line | |
JPS5248385A (en) | Destruction detecting method and system for fatigue test of steel wire | |
JPS5370473A (en) | Partial discharge measuring apparatus | |
JPS5415784A (en) | Phase detecting method | |
JPS52106446A (en) | Absent phase detector | |
JPS5257865A (en) | Change state detector | |
JPS524276A (en) | Two-signal distortion measuring circuit | |
JPS5520425A (en) | Load measuring method and its unit in impulsive test of material | |
JPS5279977A (en) | Load detector | |
JPS5364568A (en) | Detecting method for variation | |
JPS5252674A (en) | Level detecting system | |
JPS5367473A (en) | Speed detector | |
JPS5391783A (en) | Alternating current wattmeter | |
JPS5411786A (en) | Peak detecting system of spectra | |
JPS5357830A (en) | Detection process for improper operation of cut filters for color printer | |
JPS6413510A (en) | Phase difference detector | |
JPS528869A (en) | Amplitude differential detectio circuit | |
JPS5242138A (en) | Equipment for detecting scales | |
JPS55152425A (en) | Phase difference measuring device |