JPS5552122A - Compensation unit for ineffective power - Google Patents
Compensation unit for ineffective powerInfo
- Publication number
- JPS5552122A JPS5552122A JP12535778A JP12535778A JPS5552122A JP S5552122 A JPS5552122 A JP S5552122A JP 12535778 A JP12535778 A JP 12535778A JP 12535778 A JP12535778 A JP 12535778A JP S5552122 A JPS5552122 A JP S5552122A
- Authority
- JP
- Japan
- Prior art keywords
- ineffective power
- voltage
- ivr7
- ivr
- compensation unit
- 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
Abstract
PURPOSE: To compensate the ineffective power, by connecting capacitor to the secondary side of the induction voltage regulator IVR and changing the secondary voltage of IVR.
CONSTITUTION: The voltage signal obtained at the voltage transformer 10, load current signal obtained at the current transformer 13 provided at the load circuit, and current signal of the induction voltage regulator IVR7 are inputted to the control unit 12. The control unit 12 obtains the difference between the delayed and advanced ineffective power, and if this difference is positive, the secondary voltage of IVR7 is increased, and if negative, decreased. To compensate the ineffective power, IVR7 and leading capacitor 8 are used, allowing to avoid the production of higher harmonics and to constitute the circuit with no contacts.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535778A JPS5552122A (en) | 1978-10-11 | 1978-10-11 | Compensation unit for ineffective power |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12535778A JPS5552122A (en) | 1978-10-11 | 1978-10-11 | Compensation unit for ineffective power |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5552122A true JPS5552122A (en) | 1980-04-16 |
Family
ID=14908124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12535778A Pending JPS5552122A (en) | 1978-10-11 | 1978-10-11 | Compensation unit for ineffective power |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5552122A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005018068A (en) * | 2003-06-24 | 2005-01-20 | Kerr Corp | Lightweight type high resolution viewer |
US6921167B2 (en) | 2002-07-19 | 2005-07-26 | Kabushikikaisha Keller & Y. Na. | Eyeglass frames for mounting magnifying lenses and magnifying lenses using eyeglass frames |
WO2014057711A1 (en) | 2012-10-09 | 2014-04-17 | サンテプラス株式会社 | Wearable binoculars |
US9910191B2 (en) | 2007-03-15 | 2018-03-06 | Forstgarten International Holding Gmbh | Magnification loupe with aspherical lenses |
-
1978
- 1978-10-11 JP JP12535778A patent/JPS5552122A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921167B2 (en) | 2002-07-19 | 2005-07-26 | Kabushikikaisha Keller & Y. Na. | Eyeglass frames for mounting magnifying lenses and magnifying lenses using eyeglass frames |
JP2005018068A (en) * | 2003-06-24 | 2005-01-20 | Kerr Corp | Lightweight type high resolution viewer |
US9910191B2 (en) | 2007-03-15 | 2018-03-06 | Forstgarten International Holding Gmbh | Magnification loupe with aspherical lenses |
WO2014057711A1 (en) | 2012-10-09 | 2014-04-17 | サンテプラス株式会社 | Wearable binoculars |
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