JPH0368079U - - Google Patents
Info
- Publication number
- JPH0368079U JPH0368079U JP12818489U JP12818489U JPH0368079U JP H0368079 U JPH0368079 U JP H0368079U JP 12818489 U JP12818489 U JP 12818489U JP 12818489 U JP12818489 U JP 12818489U JP H0368079 U JPH0368079 U JP H0368079U
- Authority
- JP
- Japan
- Prior art keywords
- instrumental error
- error measurement
- mode
- displays
- predetermined time
- 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
- 238000005259 measurement Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例としての要部構成を
示すブロツク図、第２図は第１図の動作説明用の
フローチヤートである。
Ｖ……供給電圧、Ｉ……供給電流、１……補助
ＰＴ、２……補助ＣＴ、３……Ｗ−Ｆコンバータ
、３ａ……電力パルス、４……ＣＰＵ、５……モ
ード切替部、６……表示部、７……調整部、８…
…基準タイマ、９……器差測定表示手段。
FIG. 1 is a block diagram showing the main structure of an embodiment of the present invention, and FIG. 2 is a flowchart for explaining the operation of FIG. 1. V... Supply voltage, I... Supply current, 1... Auxiliary PT, 2... Auxiliary CT, 3... W-F converter, 3a... Power pulse, 4... CPU, 5... Mode switching section, 6...display section, 7...adjustment section, 8...
...Reference timer, 9...Instrumental error measurement display means.
Claims (1)
電流で定まる電力に比例する周波数のパルスを積
算し、この積算値としての電力量を表示部に表示
する電子式電力量計であつて、 動作モードを通常のモードと、器差測定モード
とに切換えるモード切換手段と、 所定時間を計時する計時手段と、 前記器差測定モードにおいて前記所定時間内の
前記パルスを積算し、この積算値から当該動作時
における前記供給電圧、供給電流で定まる電力が
基準値であるものとしての器差を演算したうえ前
記表示部に表示する器差測定表示手段と、を備え
たことを特徴とする器差測定機能付電子式電力量
計。[Scope of claim for utility model registration] Enter the supply voltage and supply current, and
An electronic watt-hour meter that integrates pulses with a frequency proportional to the power determined by the current and displays the amount of power as the integrated value on the display, and has two operating modes: normal mode and instrumental error measurement mode. a mode switching means for switching; a timekeeping means for measuring a predetermined time; in the instrumental error measurement mode, the pulses within the predetermined time are integrated, and from this integrated value, the power determined by the supply voltage and supply current at the time of the operation is calculated. An electronic watt-hour meter with an instrumental error measurement function, comprising: an instrumental error measurement display unit that calculates an instrumental error as a reference value and displays it on the display section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12818489U JPH0368079U (en) | 1989-11-01 | 1989-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12818489U JPH0368079U (en) | 1989-11-01 | 1989-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368079U true JPH0368079U (en) | 1991-07-03 |
Family
ID=31675903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12818489U Pending JPH0368079U (en) | 1989-11-01 | 1989-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368079U (en) |
-
1989
- 1989-11-01 JP JP12818489U patent/JPH0368079U/ja active Pending
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