JPH043000U - - Google Patents
Info
- Publication number
- JPH043000U JPH043000U JP4213490U JP4213490U JPH043000U JP H043000 U JPH043000 U JP H043000U JP 4213490 U JP4213490 U JP 4213490U JP 4213490 U JP4213490 U JP 4213490U JP H043000 U JPH043000 U JP H043000U
- Authority
- JP
- Japan
- Prior art keywords
- current
- short
- circuit
- field winding
- immediately
- 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
- 230000005284 excitation Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Eletrric Generators (AREA)
Description
第１図は本考案の一実施例を示す励磁回路図、
第２図は励磁電流減衰波形図、第３図は従来の装
置構成図である。
１……短絡発電機、１Ａ……界磁巻線、４Ａ…
…直流電源、５……界磁しや断器、６……放電用
スイツチ、７Ａ……可変抵抗器、８……電流検出
器、９……可変抵抗制御部。
FIG. 1 is an excitation circuit diagram showing an embodiment of the present invention;
FIG. 2 is an excitation current attenuation waveform diagram, and FIG. 3 is a diagram of a conventional device configuration. 1...Short circuit generator, 1A...Field winding, 4A...
...DC power supply, 5... Field magnet disconnector, 6... Discharge switch, 7A... Variable resistor, 8... Current detector, 9... Variable resistance control unit.
Claims (1)
絡電流を供給させ、該しや断器のしや断直後に界
磁巻線に並列に放電抵抗を接続して界磁電流を減
衰させる励磁回路において、前記界磁巻線の電流
を検出する電流検出器と、前記しや断器のしや断
直後に界磁巻線に並列に接続される可変抵抗器と
、前記電流検出器の検出電流に反比例させて前記
可変抵抗器の抵抗値を増大させる可変抵抗制御部
とを備えたことを特徴とする短絡発電機の励磁回
路。 A short-circuit current is supplied to the test specimen or disconnector by overexcitation of the short-circuit generator, and immediately after the short-circuit generator is overexcited, a discharge resistor is connected in parallel to the field winding to attenuate the field current. In the excitation circuit, the current detector detects the current in the field winding, a variable resistor connected in parallel to the field winding immediately after the shield breaker is disconnected, and the current detector an excitation circuit for a short-circuit generator, comprising: a variable resistance control section that increases the resistance value of the variable resistor in inverse proportion to the detected current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4213490U JPH043000U (en) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4213490U JPH043000U (en) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH043000U true JPH043000U (en) | 1992-01-10 |
Family
ID=31553410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4213490U Pending JPH043000U (en) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043000U (en) |
-
1990
- 1990-04-20 JP JP4213490U patent/JPH043000U/ja active Pending
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