JPS6450699U - - Google Patents
Info
- Publication number
- JPS6450699U JPS6450699U JP14421287U JP14421287U JPS6450699U JP S6450699 U JPS6450699 U JP S6450699U JP 14421287 U JP14421287 U JP 14421287U JP 14421287 U JP14421287 U JP 14421287U JP S6450699 U JPS6450699 U JP S6450699U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- commercial power
- speed control
- relay
- power
- 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
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図はこの考案の一実施例による省電力運転
装置を示すブロツク図、第２図はこの考案の一実
施例による省電力運転装置の動作を説明するタイ
ムチヤート図、第３図は従来の省電力運転装置を
示すブロツク図、第４図は従来の省電力運転装置
の他の実施例を示すブロツク図、第５図は従来の
省電力運転装置の特性を示す特性図である。
図において、１０は切換周波数設定器、１２は
比較器、１３は増幅器である。なお、図中同一符
号は同一又は相当部分を示す。
Fig. 1 is a block diagram showing a power-saving operation device according to an embodiment of the present invention, Fig. 2 is a time chart diagram explaining the operation of the power-saving operation device according to an embodiment of this invention, and Fig. 3 is a block diagram showing a power-saving operation device according to an embodiment of the invention. FIG. 4 is a block diagram showing another embodiment of the conventional power-saving operation device, and FIG. 5 is a characteristic diagram showing the characteristics of the conventional power-saving operation device. In the figure, 10 is a switching frequency setter, 12 is a comparator, and 13 is an amplifier. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ルブ、ダンパ制御のためなどの一定速運転用商用
電源に切換る装置として、回転数制御に用いる可
変周波数、可変電圧のインバータ装置の出力信号
を省電力運転のための最適切換周波数と比較し、
ヒステリシス増巾器を通してリレーを動作させ、
このリレーの信号により商用電源切換用開閉器を
作動させることを特徴とした省電力運転装置。 As a device for switching from rotation speed control to commercial power supply for constant speed operation for controlling valves and dampers in fluid flow rate control devices, the output signal of the variable frequency and variable voltage inverter device used for rotation speed control is omitted. Compare with the optimal switching frequency for power operation,
Operate the relay through a hysteresis amplifier,
This power-saving operation device is characterized in that a signal from this relay operates a commercial power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14421287U JPS6450699U (en) | 1987-09-21 | 1987-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14421287U JPS6450699U (en) | 1987-09-21 | 1987-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6450699U true JPS6450699U (en) | 1989-03-29 |
Family
ID=31411717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14421287U Pending JPS6450699U (en) | 1987-09-21 | 1987-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6450699U (en) |
-
1987
- 1987-09-21 JP JP14421287U patent/JPS6450699U/ja active Pending
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