JPH0417643U - - Google Patents
Info
- Publication number
- JPH0417643U JPH0417643U JP5697390U JP5697390U JPH0417643U JP H0417643 U JPH0417643 U JP H0417643U JP 5697390 U JP5697390 U JP 5697390U JP 5697390 U JP5697390 U JP 5697390U JP H0417643 U JPH0417643 U JP H0417643U
- Authority
- JP
- Japan
- Prior art keywords
- load
- frequency
- detecting
- set value
- load bus
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010248 power generation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は実施例の動作態様図、第３図は従来の構成図
である。
１Ａ，１Ｂ……原動機、２Ａ，２Ｂ……発電機
、８……負荷選択しや断装置、１３……Ｆ／Ｖ変
換器、１４……比較器、１５……周波数設定器、
１６……変化率演算器、１７……比較器、１８…
…時間変化率設定器、１９……論理積回路、２０
……装置使用条件部。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is an operational mode diagram of the embodiment, and FIG. 3 is a conventional configuration diagram. 1A, 1B... Prime mover, 2A, 2B... Generator, 8... Load selection and disconnection device, 13... F/V converter, 14... Comparator, 15... Frequency setter,
16... Rate of change calculator, 17... Comparator, 18...
...Time change rate setter, 19...AND circuit, 20
...Equipment usage conditions section.
Claims (1)
や断器を通して負荷群に給電する発電システムに
おいて、前記負荷母線の周波数が設定値以下にな
つたことを検出する第１の比較手段と、前記負荷
母線の周波数の時間変化率が設定値を越えたこと
を検出する第２の比較手段と、前記第１及び第２
の比較手段の検出時に予め設定する負荷しゃ断器
のトリツプ信号を得る論理積手段とを備えたこと
を特徴とする負荷選択しゃ断装置。 In a power generation system that supplies power from a generator to a load group through a load bus line and a plurality of load line breakers for branching, a first comparison means for detecting that the frequency of the load bus line has become below a set value; a second comparing means for detecting that the time rate of change of the frequency of the load bus exceeds a set value;
and logical product means for obtaining a load breaker trip signal set in advance upon detection of the comparison means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5697390U JPH0417643U (en) | 1990-05-30 | 1990-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5697390U JPH0417643U (en) | 1990-05-30 | 1990-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417643U true JPH0417643U (en) | 1992-02-13 |
Family
ID=31581274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5697390U Pending JPH0417643U (en) | 1990-05-30 | 1990-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417643U (en) |
-
1990
- 1990-05-30 JP JP5697390U patent/JPH0417643U/ja active Pending
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