JPH0247706B2 - - Google Patents
Info
- Publication number
- JPH0247706B2 JPH0247706B2 JP57077770A JP7777082A JPH0247706B2 JP H0247706 B2 JPH0247706 B2 JP H0247706B2 JP 57077770 A JP57077770 A JP 57077770A JP 7777082 A JP7777082 A JP 7777082A JP H0247706 B2 JPH0247706 B2 JP H0247706B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- voltage
- pulse width
- proportional
- 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 - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 5
- 230000010354 integration Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57077770A JPS57201861A (en) | 1982-05-10 | 1982-05-10 | Watthour meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57077770A JPS57201861A (en) | 1982-05-10 | 1982-05-10 | Watthour meter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53069544A Division JPS5839297B2 (ja) | 1978-06-09 | 1978-06-09 | 電力量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57201861A JPS57201861A (en) | 1982-12-10 |
JPH0247706B2 true JPH0247706B2 (ko) | 1990-10-22 |
Family
ID=13643179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57077770A Granted JPS57201861A (en) | 1982-05-10 | 1982-05-10 | Watthour meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57201861A (ko) |
-
1982
- 1982-05-10 JP JP57077770A patent/JPS57201861A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57201861A (en) | 1982-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4495463A (en) | Electronic watt and/or watthour measuring circuit having active load terminated current sensor for sensing current and providing automatic zero-offset of current sensor DC offset error potentials | |
KR840002378B1 (ko) | 전자식 전력량계 | |
JPS6026463B2 (ja) | 交流電力量計測回路 | |
US4485343A (en) | Electronic watt and watthour meter having analog and digital outputs with automatic error correction | |
US4749941A (en) | Circuit arrangement for a meter for measuring two electrical quantities | |
Mertens et al. | Voltage and current sensing in power electronic converters using sigma-delta A/D conversion | |
JP2661933B2 (ja) | インバータの出力トランスの1次巻線を流れる電流の直流分の測定回路 | |
US4475081A (en) | Electronic watthour meter | |
JPH06174765A (ja) | 電力乗算回路 | |
JPH0247706B2 (ko) | ||
JPS618680A (ja) | 無効電力・直流信号変換器 | |
US4145652A (en) | Electric power to DC signal converter | |
JPS5839297B2 (ja) | 電力量計 | |
US5537028A (en) | Electricity meter and method for measuring apparent power | |
US9991049B2 (en) | Correlation-evading commutated-element direct-current current transformer | |
KR860000293B1 (ko) | 전자식 전력 계량기 | |
JP3074749B2 (ja) | 電力変換回路 | |
JP2893763B2 (ja) | 電力トランスデューサ | |
RU2039357C1 (ru) | Счетчик электроэнергии | |
JP2690646B2 (ja) | 電子式電力量計 | |
CA1283451C (en) | Switched-capacitor watthour meter circuit having reduced capacitor ratio | |
Fraeger et al. | AFE: Control Strategies under Unbalanced Grid Conditions | |
SU375560A1 (ru) | УСТРОЙСТВО дл ИЗМЕРЕНИЯ ЭЛЕКТРИЧЕСКОЙ ЭНЕРГИИ | |
SU866491A1 (ru) | Электронный счетчик электроэнергии | |
RU2054677C1 (ru) | Счетчик электроэнергии |