JPH0447714U - - Google Patents
Info
- Publication number
- JPH0447714U JPH0447714U JP9100290U JP9100290U JPH0447714U JP H0447714 U JPH0447714 U JP H0447714U JP 9100290 U JP9100290 U JP 9100290U JP 9100290 U JP9100290 U JP 9100290U JP H0447714 U JPH0447714 U JP H0447714U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- tap
- load
- output tap
- excessive
- 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 description 4
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図及び第２図は本考案の交流定電圧装置の
１実施例を示し、第１図はブロツク図、第２図は
動作説明用のフローチヤート、第３図、第４図は
従来例のブロツク図、動作説明用のフローチヤー
トである。
１……交流電源、２……タツプ付トランス、３
……タツプ切換回路、４……負荷、５……転流ス
イツチ回路、６……電圧低下検出回路、７ｂ……
タツプ決定回路、８……点弧禁止ゲート回路、９
ｂ……転流消弧回路、１０……過大電圧検出回路
、１１……過小電圧検出回路、１２……選択タツ
プ補正回路。
1 and 2 show one embodiment of the AC voltage constant device of the present invention, FIG. 1 is a block diagram, FIG. 2 is a flowchart for explaining the operation, and FIGS. 3 and 4 are conventional examples. These are a block diagram and a flowchart for explaining the operation. 1...AC power supply, 2...Transformer with tap, 3
... Tap switching circuit, 4 ... Load, 5 ... Commutation switch circuit, 6 ... Voltage drop detection circuit, 7b ...
Tap determination circuit, 8...Ignition prohibition gate circuit, 9
b...Commutation arc extinguishing circuit, 10...Overvoltage detection circuit, 11...Undervoltage detection circuit, 12...Selection tap correction circuit.
Claims (1)
スの２次側の各出力タツプを択一的に切換えて負
荷に接続する半導体交流スイツチ構成のタツプ切
換回路を備え、 前記１次側の電圧低下の監視に基づく出力タツ
プの選択により、前記交流電源の数サイクルの周
期で前記タツプ切換回路の切換制御をくり返し、 前記交流電源の瞬時電圧低下等の発生時、前記
１次側の電圧低下を補償する出力タツプを選択し
、負荷電圧を定格電圧に保持する交流定電圧装置
において、 前記負荷電圧を監視し負荷率、負荷力率等に基
づく前記負荷電圧の前記定格電圧からの所定値以
上の過大、過小を検出する負荷電圧変動検出手段
と、 前記過大、過小の検出時前記出力タツプの選択
の結果を１タツプ下、上に補正する選択タツプ補
正手段と を備えた交流定電圧装置。[Claims for Utility Model Registration] A tap switching circuit configured as a semiconductor AC switch that selectively switches each output tap on the secondary side of a transformer with taps whose primary side is connected to an AC power source to connect them to a load, By selecting an output tap based on monitoring of the voltage drop on the primary side, switching control of the tap switching circuit is repeated at a period of several cycles of the AC power supply, and when an instantaneous voltage drop or the like of the AC power supply occurs, In an AC constant voltage device that selects an output tap that compensates for a voltage drop on the next side and maintains the load voltage at a rated voltage, the load voltage is monitored and the rated voltage of the load voltage is determined based on the load factor, load power factor, etc. load voltage fluctuation detection means for detecting an excessive or undervalue of a predetermined value or more; and a selection tap correction means for correcting the result of the selection of the output tap by one tap downward or upward when the excessive or insufficient voltage is detected. AC voltage regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9100290U JPH0447714U (en) | 1990-08-29 | 1990-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9100290U JPH0447714U (en) | 1990-08-29 | 1990-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0447714U true JPH0447714U (en) | 1992-04-23 |
Family
ID=31826239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9100290U Pending JPH0447714U (en) | 1990-08-29 | 1990-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447714U (en) |
-
1990
- 1990-08-29 JP JP9100290U patent/JPH0447714U/ja active Pending
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