JPH0312035Y2 - - Google Patents
Info
- Publication number
- JPH0312035Y2 JPH0312035Y2 JP1986003466U JP346686U JPH0312035Y2 JP H0312035 Y2 JPH0312035 Y2 JP H0312035Y2 JP 1986003466 U JP1986003466 U JP 1986003466U JP 346686 U JP346686 U JP 346686U JP H0312035 Y2 JPH0312035 Y2 JP H0312035Y2
- Authority
- JP
- Japan
- Prior art keywords
- rectifier
- inverter
- rec
- switch
- storage 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.)
- Expired
Links
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
【考案の詳細な説明】
イ 本案の技術分野
本案は、無停電装置における故障時の保護に係
る電気的回路構成に関する。[Detailed description of the invention] A. Technical field of the present invention The present invention relates to an electrical circuit configuration related to protection in the event of a failure in an uninterruptible device.
ロ 従来の技術
この種の無停電装置の一般的に用いられている
回路構成について、第２図を以て述べると、長時
間の停電に対処するべく、通常、エンジン発電機
Ｅ−Ｇを用い、商用電源Ｐの停電を、不足電圧継
電器RYによつて検出し、エンジン操作ブロツク
RCに信号を送つてエンジンＥを自動的に起動し
て発電させた後、切替器Ｓをａ点よりｂ点に切替
え、発電機Ｇによる代替送電して電力供給を行つ
ている。なお、同図中、Recは整流器、IVは、自
動電圧調整機能を有するインバータ、Ｌは、コン
ピユータ等よりなる負荷、Ｂは蓄電池、を夫々示
す。B. Prior art The commonly used circuit configuration of this type of uninterruptible device is described with reference to FIG. 2. In order to cope with long-term power outages, engine generators A power outage in the power supply P is detected by the undervoltage relay RY, and the engine operation block is activated.
After sending a signal to RC and automatically starting engine E to generate electricity, switch S is switched from point a to point b, and alternative power is transmitted by generator G to supply power. In the figure, Rec indicates a rectifier, IV indicates an inverter having an automatic voltage adjustment function, L indicates a load such as a computer, and B indicates a storage battery.
ハ 従来技術の問題点
然るに、叙上の構成の装置では、構成機器が正
しく機能している場合は、何等の支障も無く正常
に作動するが、整流器Recの故障、或いは開閉器
NFBが何等かの原因でトリツプしたような場合、
蓄電池Ｂは、その放電終止電圧に至るまで放電し
続ける結果、該終止電圧に至るや、図示しない自
動停止回路によつて装置自体を自動停止せざるを
得ず、他方、斯かる状態に至つた蓄電池Ｂは、そ
の回復充電に苦労をするばかりか、時として電極
物質の剥離が起り、その寿命を短縮する、のみな
らず、極物質沈降量を増し、サルフエーシヨンを
誘固し、蓄電池全体の交換を余儀なくされ、大き
な経済損失を蒙る、等の不測の事態を招く欠点を
備える。C. Problems with the prior art However, in the device with the above configuration, if the component equipment is functioning properly, it will operate normally without any problems, but if the rectifier Rec breaks down or the switch
If NFB trips for some reason,
As a result of the storage battery B continuing to discharge until it reaches its final discharge voltage, when the final voltage is reached, the device itself has to be automatically stopped by an automatic stop circuit (not shown); Storage battery B not only has difficulty in recovering and charging, but also sometimes the electrode material peels off, shortening its lifespan.It also increases the amount of electrode material settling, solidifying sulfation, and requiring replacement of the entire storage battery. It has disadvantages that can lead to unforeseen situations, such as being forced to do so and incurring large economic losses.
ニ 本案の目的
本案は、叙上の欠点を可及的に解消せんとする
もので、仮りに装置自体に故障が発生しても、装
置自体を停止することなく代替送電を継続させ、
その信頼性を向上せんとすることを目的とする。D. Purpose of this proposal This proposal aims to eliminate the above-mentioned drawbacks as much as possible. Even if a failure occurs in the equipment itself, alternative power transmission will continue without stopping the equipment itself, and
The purpose is to improve its reliability.
ホ 本案の要点
本案は、整流器Recに予備整流器Rec′を並列的
に配設した点と、蓄電池Ｂの異常低電位を検出
し、これをエンジン操作ブロツクPCに指令する
電圧継電器VDを付加せしめた点に、特徴を有す
る。E. Main Points of the Proposal The main features of this proposal are that a pre-rectifier Rec' is placed in parallel with the rectifier Rec, and a voltage relay VD is added that detects abnormally low potential of the storage battery B and sends a command to the engine control block PC. It has a certain characteristic.
ヘ 本案の実施例
第１図は、本案無停電装置の一実施例を示す電
気的結線図で、第２図で述べた既述の従来例と同
一個所には同一符号を付け、本案の異なる点のみ
を述べると、Recは、既設の整流器Recの出力と
切替器Ｓの接点ｂとの間に結ばれた該整流器Rec
と同容量の整流器、VDは、Ｍ極を接地された蓄
電池Ｂの他極と、エンジン操作ブロツクPCとの
間に結ばれた電圧続電器で、該蓄電池の電位を常
時監視し、該電位が設定レベル以下に低下した
際、エンジン操作ブロツクPCに信号を指令する。F. Embodiment of the present invention Figure 1 is an electrical wiring diagram showing an embodiment of the uninterruptible device of the present invention. To state only the point, Rec is the rectifier Rec connected between the output of the existing rectifier Rec and the contact b of the switch S.
A rectifier with the same capacity as , VD is a voltage connecting device connected between the other pole of storage battery B whose M pole is grounded and the engine operation block PC, and constantly monitors the potential of the storage battery. When the level drops below the set level, a signal is sent to the engine control block PC.
ト 本案の効果
本案は、叙上の構成よりなり、次いで作用と共
に効果について詳述すると、蓄電池Ｂの電位が電
圧継電器VDによつて常時監視されているので、
整流器Recの故障、又は開閉器NFBの機能不良、
などにより、該電位が、設定レベル以下に降下し
た場合、エンジン操作ブロツクPCに信号を指令
するので、エンジン発電機Ｅ−Ｇを自動起動さ
せ、その出力によつて切替器Ｓが、接点ｂ側に自
動的に切替えられ、整流器Rec′を介してインバ
ータIVに直流送電を開始する。G. Effects of the present invention The present invention consists of the above-mentioned configuration. Next, the effects and effects will be explained in detail. Since the potential of the storage battery B is constantly monitored by the voltage relay VD,
Failure of rectifier Rec or malfunction of switch NFB,
If the potential drops below the set level due to reasons such as this, a signal is sent to the engine control block PC to automatically start the engine generator E-G, and its output causes the switch S to switch to contact b. and starts transmitting DC power to inverter IV via rectifier Rec'.
而して、インバータIVの入力電圧が正常値に
復帰するので、蓄電池Ｂは放電を停止し、フロー
ト充電状態に変換される。 As the input voltage of inverter IV returns to its normal value, storage battery B stops discharging and is converted to a float charging state.
斯くして蓄電池Ｂの電位が上昇して所定レベル
に達するや、電圧継電器VDが該電位を検知し、
エンジン操作ブロツクPCへの信号を停止し、該
ブロツクPCで設定された所定時限経過後、エン
ジン発電機Ｅ−Ｇを自動停止し、切替器Ｓは、そ
の接点ａに自動復帰し、商用電源Ｐより接点ａを
介して正常運転に移行する。 In this way, when the potential of storage battery B rises and reaches a predetermined level, voltage relay VD detects this potential,
The signal to the engine operation block PC is stopped, and after a predetermined time period set by the block PC has elapsed, the engine generator E-G is automatically stopped, the switch S is automatically returned to its contact a, and the commercial power supply P Then, normal operation is resumed via contact a.
なお、商用電源Ｐの一般の停電に対しては、第
２図で述べた従来型式のものと同様、不足電圧継
電器RYによつて検出された信号指令により、エ
ンジン発電機Ｅ−Ｇは自動起動し、切替器Ｓを接
点ｂ側に自動切替して対処するので、何等支障を
来たさない。 In addition, in the case of a general power outage of the commercial power supply P, the engine generator E-G is automatically started by the signal command detected by the undervoltage relay RY, similar to the conventional type described in Fig. 2. However, since the switching device S is automatically switched to the contact b side to deal with the problem, it does not cause any trouble.
以上述べたとおり、本案装置によれば、整流器
Recの故障、又は開閉器NFBのトリツプ、等が
発生しても、装置自体を停止させることなく、運
転を継続させることができ、しかも、蓄電池Ｂの
既述の損傷も避けられる等、簡単な構成ながら
も、本案意図する狙いを充分達成し得る優れた効
果を奏する有意義なものである。 As stated above, according to the proposed device, the rectifier
Even if Rec malfunctions or switch NFB trips, etc., operation can be continued without stopping the equipment itself, and damage to storage battery B as mentioned above can be avoided. Although it is a simple structure, it is meaningful and produces excellent effects that fully achieve the intended purpose of the project.
第１図は本案の一実施例を、第２図は従来例
を、夫々示す電気的結線図である。
Ｂ……蓄電池、Ｅ−Ｇ……エンジン発電機、
IV……インバータ、Ｌ……負荷、NFB……開閉
器、Ｐ……商用電源、PC……エンジン操作ブロ
ツク、Rec，Rec′……整流器、RY……不足電圧
継電器、Ｓ……切替器、VD……電圧継電器。
FIG. 1 is an electrical wiring diagram showing an embodiment of the present invention, and FIG. 2 is an electrical wiring diagram showing a conventional example. B...Storage battery, E-G...Engine generator,
IV...Inverter, L...Load, NFB...Switch, P...Commercial power supply, PC...Engine operation block, Rec, Rec'...Rectifier, RY...Undervoltage relay, S...Switcher, VD...Voltage relay.
Claims (1)
NFBを介して結ばれた整流器Recと、その出力
を受け負荷Ｌに給電するインバータIVと、一極
が接地され、その他極が前記インバータの入力に
結ばれた蓄電池Ｂと、からなり、前記接点ｂに
は、エンジン操作ブロツクPCに駆動されるエン
ジン発電機Ｅ−Ｇの出力が、前記接点ａには、商
用電源Ｐと前記エンジン操作ブロツクに信号指令
する不足電圧継電器RYが、夫々結ばれてなるも
のにおいて、前記インバータの入力には、前記接
点ｂとの間に前記整流器Recと同容量の整流器
Rec′と前記ブロツクPCに信号指令する電圧継電
器VDとが配設されていることを特徴とする無停
電装置。 A switch S equipped with contacts a and b, and a switch connected to it
It consists of a rectifier Rec connected via an NFB, an inverter IV that receives the output of the rectifier Rec and supplies power to the load L, and a storage battery B whose one pole is grounded and whose other pole is connected to the input of the inverter. The output of the engine generator E-G driven by the engine operation block PC is connected to b, and the commercial power supply P and an undervoltage relay RY that sends a signal to the engine operation block are connected to the contact a. A rectifier having the same capacity as the rectifier Rec is connected between the input of the inverter and the contact b.
1. An uninterruptible device characterized in that a voltage relay VD for sending a signal to the block PC is provided.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986003466U JPH0312035Y2 (en) | 1986-01-14 | 1986-01-14 | |
| US06/875,498 US4686379A (en) | 1985-12-24 | 1986-06-18 | No-break power supply system |
| DE19863620493 DE3620493A1 (en) | 1985-12-24 | 1986-06-19 | UNINTERRUPTIBLE POWER SUPPLY |
| GB8624028A GB2184903B (en) | 1985-12-24 | 1986-10-07 | A no-break power supply system |
| KR2019860021959U KR900004984Y1 (en) | 1986-01-14 | 1986-12-30 | No-break power supply system |
| GB8925328A GB2224403B (en) | 1985-12-24 | 1989-11-09 | A no-break power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986003466U JPH0312035Y2 (en) | 1986-01-14 | 1986-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62115744U JPS62115744U (en) | 1987-07-23 |
| JPH0312035Y2 true JPH0312035Y2 (en) | 1991-03-22 |
Family
ID=30783248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986003466U Expired JPH0312035Y2 (en) | 1985-12-24 | 1986-01-14 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0312035Y2 (en) |
| KR (1) | KR900004984Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2813775B2 (en) * | 1988-08-05 | 1998-10-22 | 日本電信電話株式会社 | DC power supply |
-
1986
- 1986-01-14 JP JP1986003466U patent/JPH0312035Y2/ja not_active Expired
- 1986-12-30 KR KR2019860021959U patent/KR900004984Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR870012762U (en) | 1987-08-05 |
| KR900004984Y1 (en) | 1990-06-05 |
| JPS62115744U (en) | 1987-07-23 |
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