JPH04368436A - Protective circuit for uninterruptible power supply system - Google Patents
Protective circuit for uninterruptible power supply systemInfo
- Publication number
- JPH04368436A JPH04368436A JP3142180A JP14218091A JPH04368436A JP H04368436 A JPH04368436 A JP H04368436A JP 3142180 A JP3142180 A JP 3142180A JP 14218091 A JP14218091 A JP 14218091A JP H04368436 A JPH04368436 A JP H04368436A
- Authority
- JP
- Japan
- Prior art keywords
- uninterruptible power
- short
- currents
- power equipment
- common battery
- 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
- 230000001681 protective Effects 0.000 title 1
- 230000000903 blocking Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000009499 grossing Methods 0.000 abstract 1
Abstract
PURPOSE: To prevent the effect of an accident on a sound machine by inserting a diode polarity blocking currents in the direction of a common battery from a DC intermediate circuit.
CONSTITUTION: When a smoothing capacitor 14 is short-circuited, short circuit currents are made to flow through a short-circuit point from a common battery 2, the short circuit currents are detected by a first current detector 18, and a battery breaker 17 is tripped. A first unintrruptible power equipment 30 is detached from a sound second uninterruptible power equipment 40 and the common battery 2. The voltage of the common battery 2 drops during a time when the short circuit currents are made to flow, but a reverse blocking diode 41 obstructs the flowing of currents through the short-circuit point from the second uninterruptible power equipment 40. Accordingly, the effect of an accident on the sound uninterruptible power equipment can be prevented.
COPYRIGHT: (C)1992,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142180A JPH04368436A (en) | 1991-06-14 | 1991-06-14 | Protective circuit for uninterruptible power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142180A JPH04368436A (en) | 1991-06-14 | 1991-06-14 | Protective circuit for uninterruptible power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04368436A true JPH04368436A (en) | 1992-12-21 |
Family
ID=15309236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3142180A Pending JPH04368436A (en) | 1991-06-14 | 1991-06-14 | Protective circuit for uninterruptible power supply system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04368436A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2736766A1 (en) * | 1995-06-09 | 1997-01-17 | Mitsubishi Electric Corp | Rectifier control system with multiple rectifiers for supplying DC voltage to inverter |
| JP2013247819A (en) * | 2012-05-29 | 2013-12-09 | Mitsubishi Electric Corp | Uninterruptible power supply device for device of driving nuclear reactor control bar |
| WO2014003738A1 (en) * | 2012-06-27 | 2014-01-03 | Hewlett-Packard Development Company, L.P. | Battery to provide voltage to power modules |
-
1991
- 1991-06-14 JP JP3142180A patent/JPH04368436A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2736766A1 (en) * | 1995-06-09 | 1997-01-17 | Mitsubishi Electric Corp | Rectifier control system with multiple rectifiers for supplying DC voltage to inverter |
| US5796601A (en) * | 1995-06-09 | 1998-08-18 | Mitsubishi Denki Kabushiki Kaisha | Rectifier control system |
| JP2013247819A (en) * | 2012-05-29 | 2013-12-09 | Mitsubishi Electric Corp | Uninterruptible power supply device for device of driving nuclear reactor control bar |
| WO2014003738A1 (en) * | 2012-06-27 | 2014-01-03 | Hewlett-Packard Development Company, L.P. | Battery to provide voltage to power modules |
| CN104380566A (en) * | 2012-06-27 | 2015-02-25 | 惠普发展公司，有限责任合伙企业 | Battery to provide voltage to power modules |
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