JPH0210752U - - Google Patents
Info
- Publication number
- JPH0210752U JPH0210752U JP8581088U JP8581088U JPH0210752U JP H0210752 U JPH0210752 U JP H0210752U JP 8581088 U JP8581088 U JP 8581088U JP 8581088 U JP8581088 U JP 8581088U JP H0210752 U JPH0210752 U JP H0210752U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- power outage
- synchronous
- synchronous generator
- underpower
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Description
第1図は本考案の一実施例を示す停電検出装置
の回路構成図、第2図は停電検出装置の機能シー
ケンス回路説明図である。
10……計器用変圧器、11……計器用変流器
、12……同期電動機、13……同期発電機、1
4……不足周波数継電器、15……方向性過電流
継電器、16……不足電力継電器。
FIG. 1 is a circuit configuration diagram of a power failure detection device showing an embodiment of the present invention, and FIG. 2 is a functional sequence circuit diagram of the power failure detection device. 10...Instrument transformer, 11...Instrument current transformer, 12...Synchronous motor, 13...Synchronous generator, 1
4... Underfrequency relay, 15... Directional overcurrent relay, 16... Underpower relay.
Claims (1)
同期発電機が同一系統に接続された電源入力部と
、この電源入力部に設けられた計器用変圧器及び
計器用変流器と、前記計器用変圧器に接続された
不足周波数継電器及び不足電力継電器及び方向性
過電流継電器と、前記同期発電機が運転していな
い場合に前記不足周波数継電器及び前記不足電力
継電器の論理積条件にて電源の停電を検出する検
出回路と、前記同期電動機及び同期発電機が運転
している場合、又は前記同期発電機が単独運転し
ている場合に前記方向性過電流継電器及び前記不
足電力継電器の論理積条件にて電源の停電を検出
する停電検出回路とからなる停電検出装置。 a power input section in which a synchronous motor and a synchronous generator with an output less than the capacity of the synchronous electric machine are connected to the same system; an instrument transformer and an instrument current transformer provided in this power input section; A power outage occurs under the logical product condition of the underfrequency relay, underpower relay, and directional overcurrent relay connected to the transformer, and the underfrequency relay and the underpower relay when the synchronous generator is not operating. and a logical product condition of the directional overcurrent relay and the underpower relay when the synchronous motor and synchronous generator are operating, or when the synchronous generator is operating independently. A power outage detection device consisting of a power outage detection circuit that detects a power outage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8581088U JPH0210752U (en) | 1988-06-30 | 1988-06-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8581088U JPH0210752U (en) | 1988-06-30 | 1988-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0210752U true JPH0210752U (en) | 1990-01-23 |
Family
ID=31310466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8581088U Pending JPH0210752U (en) | 1988-06-30 | 1988-06-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0210752U (en) |
-
1988
- 1988-06-30 JP JP8581088U patent/JPH0210752U/ja active Pending