JPH0464946U - - Google Patents
Info
- Publication number
- JPH0464946U JPH0464946U JP10807390U JP10807390U JPH0464946U JP H0464946 U JPH0464946 U JP H0464946U JP 10807390 U JP10807390 U JP 10807390U JP 10807390 U JP10807390 U JP 10807390U JP H0464946 U JPH0464946 U JP H0464946U
- Authority
- JP
- Japan
- Prior art keywords
- circuit breaker
- generator
- load
- reverse power
- tripping signal
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図は本考案の系統連系システムの１実施例
を示す保護継電装置のブロツク図、第２図は一般
的な系統連系システムの単線接続図、第３図は従
来例を示す保護継電装置のブロツク図である。
１……配電線、２……受電遮断器、３……変圧
器、５……熱併給発電機、７……負荷、８……逆
電力継電器、１３……高調波レベル検出器。
Fig. 1 is a block diagram of a protective relay device showing one embodiment of the grid interconnection system of the present invention, Fig. 2 is a single line connection diagram of a general grid interconnection system, and Fig. 3 is a protection relay device showing a conventional example. FIG. 3 is a block diagram of a relay device. 1... Distribution line, 2... Power receiving circuit breaker, 3... Transformer, 5... Cogeneration generator, 7... Load, 8... Reverse power relay, 13... Harmonic level detector.
Claims (1)
荷側に自家発電機を接続して負荷に電力を供給す
る系統連系システムにおいて、 前記変圧器の１次側の電圧及び電流により前記
発電機側からの逆電力を検出し前記遮断器の引き
外し信号を出力する逆電力継電器と、前記電流の
高調波成分を検出し所定以上の高調波レベルの検
出により前記引き外し信号の出力を禁止する高調
波レベル検出器とを備えた系統連系システム。[Scope of Claim for Utility Model Registration] In a grid-connected system that supplies power to a load by connecting a private generator to the load side of a transformer connected to a distribution line via a circuit breaker, a reverse power relay that detects reverse power from the generator side based on the voltage and current of the generator side and outputs a tripping signal for the circuit breaker; and a harmonic level detector that prohibits output of the tripping signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10807390U JPH0464946U (en) | 1990-10-15 | 1990-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10807390U JPH0464946U (en) | 1990-10-15 | 1990-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0464946U true JPH0464946U (en) | 1992-06-04 |
Family
ID=31854869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10807390U Pending JPH0464946U (en) | 1990-10-15 | 1990-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0464946U (en) |
-
1990
- 1990-10-15 JP JP10807390U patent/JPH0464946U/ja active Pending
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