JPH0451044U - - Google Patents
Info
- Publication number
- JPH0451044U JPH0451044U JP9319790U JP9319790U JPH0451044U JP H0451044 U JPH0451044 U JP H0451044U JP 9319790 U JP9319790 U JP 9319790U JP 9319790 U JP9319790 U JP 9319790U JP H0451044 U JPH0451044 U JP H0451044U
- Authority
- JP
- Japan
- Prior art keywords
- uninterruptible power
- power supply
- operating
- uninterruptible
- power supplies
- 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.)
- Granted
Links
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
- Protection Of Static Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図は本考案の１実施例を示すブロツク図、
第２図は従来の１例を示すブロツク図である。
１……交流電源、２……無停電電源装置、３…
…無瞬断切り替え装置、３′……過電流検出器、
４……負荷、３１……電流検出回路、３２……設
定器、３３……切り換え制御装置。
FIG. 1 is a block diagram showing one embodiment of the present invention.
FIG. 2 is a block diagram showing one conventional example. 1... AC power supply, 2... Uninterruptible power supply, 3...
...Uninterrupted switching device, 3'...Overcurrent detector,
4... Load, 31... Current detection circuit, 32... Setting device, 33... Switching control device.
Claims (1)
は複数台の無停電電源装置によつて構成された無
停電電源装置システムで、その負荷機器の１部に
短絡故障などの過電流が発生した場合、他の正常
な無停電電源装置へ影響することなく選択遮断す
る保護方式のうち商用バイパス電源系統と同期無
瞬断切り換えを行う装置において、負荷量に応じ
て無停電電源装置並列運転台数を変更して運転す
る場合、負荷機器の短絡故障や突入電流に対して
専用の過電流検出器を設け、この過電流検出器を
、 （無停電電源装置の運転台数−１）×（無停電
電源装置１台の過負荷耐量） とし、また無停電電源装置１台の時は無停電電源
装置２台と同一の設定値とし、更に無停電電源装
置の運転台数をプリセツトすることによつて商用
バイパス電源系統へ適切に切り換えるように構成
したことを特徴とする無停電電源装置の保護回路
。[Scope of Utility Model Registration Claim] An uninterruptible power supply system consisting of one or more uninterruptible power supplies that operate in synchronization with a commercial bypass power system, in which a part of the load equipment is subject to short-circuit failure, etc. When an overcurrent occurs, among the protection methods that selectively shut down the uninterruptible power supply without affecting other normal uninterruptible power supplies, in equipment that performs synchronous uninterruptible switching with the commercial bypass power supply system, the uninterruptible power supply is switched off according to the load amount. When operating by changing the number of devices operating in parallel, install a dedicated overcurrent detector for short-circuit failures and inrush currents in load devices, and use this overcurrent detector to detect (number of operating uninterruptible power supplies - 1) × (overload capacity of one uninterruptible power supply), and when using one uninterruptible power supply, set the same value as two uninterruptible power supplies, and preset the number of operating uninterruptible power supplies. A protection circuit for an uninterruptible power supply, characterized in that the circuit is configured to appropriately switch to a commercial bypass power supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9319790U JP2518204Y2 (en) | 1990-09-05 | 1990-09-05 | Uninterruptible power supply protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9319790U JP2518204Y2 (en) | 1990-09-05 | 1990-09-05 | Uninterruptible power supply protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0451044U true JPH0451044U (en) | 1992-04-30 |
| JP2518204Y2 JP2518204Y2 (en) | 1996-11-27 |
Family
ID=31830214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9319790U Expired - Lifetime JP2518204Y2 (en) | 1990-09-05 | 1990-09-05 | Uninterruptible power supply protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2518204Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017112683A (en) * | 2015-12-15 | 2017-06-22 | 東芝三菱電機産業システム株式会社 | Power conversion system |
| JP2018126010A (en) * | 2017-02-02 | 2018-08-09 | 株式会社東芝 | Power system |
-
1990
- 1990-09-05 JP JP9319790U patent/JP2518204Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017112683A (en) * | 2015-12-15 | 2017-06-22 | 東芝三菱電機産業システム株式会社 | Power conversion system |
| JP2018126010A (en) * | 2017-02-02 | 2018-08-09 | 株式会社東芝 | Power system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2518204Y2 (en) | 1996-11-27 |
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