JPH0472894U - - Google Patents
Info
- Publication number
- JPH0472894U JPH0472894U JP11309890U JP11309890U JPH0472894U JP H0472894 U JPH0472894 U JP H0472894U JP 11309890 U JP11309890 U JP 11309890U JP 11309890 U JP11309890 U JP 11309890U JP H0472894 U JPH0472894 U JP H0472894U
- Authority
- JP
- Japan
- Prior art keywords
- field winding
- phase
- induction motor
- connection circuit
- control device
- 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
- 238000004804 winding Methods 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Motor And Converter Starters (AREA)
Description
第１図は本考案の一実施例を示す接続図で、そ
の内、同図Ａは三相誘導電動機と接続切り替え用
電磁接触器を主体に示す概要回路図、同図ＢはＡ
図において単相誘導電動機が形成された状態を示
す概要回路図、同図Ｃ及びＤは夫々切り替えられ
て三相誘導電動機が形成された状態を示す概要回
路図である。第２図は本考案の別の実施例を示す
接続図で、その内、同図Ａは三相誘導電動機と接
続切り替え用電磁接触器を主体に示す概要回路図
、同図ＢはＡ図において単相誘導電動機が形成さ
れた状態を示す概要回路図、同図Ｃ及びＤは夫々
切り替えられて三相誘導電動機が形成された状態
を示す概要回路図である。第３図は従来のスター
接続の誘導電動機を示す概要回路図である。
１，２，３……電源線路、４〜１０……電磁接
触器、１５，１６……コンデンサ、１１〜１３…
…電動機の界磁巻線。
Figure 1 is a connection diagram showing one embodiment of the present invention, in which figure A is a schematic circuit diagram mainly showing a three-phase induction motor and a connection switching electromagnetic contactor, and figure B is a schematic circuit diagram showing A.
In the figure, C and D are schematic circuit diagrams showing a state in which a single-phase induction motor is formed, and C and D in the figure are respectively switched to form a three-phase induction motor. Fig. 2 is a connection diagram showing another embodiment of the present invention, in which Fig. A is a schematic circuit diagram mainly showing a three-phase induction motor and a connection switching electromagnetic contactor, and Fig. A schematic circuit diagram showing a state in which a single-phase induction motor is formed, and C and D in the same figure are schematic circuit diagrams showing a state in which a three-phase induction motor is formed by switching, respectively. FIG. 3 is a schematic circuit diagram showing a conventional star-connected induction motor. 1, 2, 3... Power line, 4-10... Magnetic contactor, 15, 16... Capacitor, 11-13...
...field winding of an electric motor.
Claims (1)
磁巻線を固定子に互いに１２０°ずらして配置し
てなる三相誘導電動機において、この三相誘導電
動機の制御装置には、第１の界磁巻線、第２の界
磁巻線、第３の界磁巻線をスターまたはデルタ状
に接続し、この接続回路を三相交流電源のそれぞ
れの電源線路に接続して三相接続回路になす三相
接続手段と、前記第１の界磁巻線及び前記第２の
界磁巻線を並列に接続し、この接続回路を三相交
流電源の電源線路のうち所定の二相の電源線路に
接続して単相接続回路になす単相接続手段と、前
記三相誘導電動機の起動時又は／及び停止時に所
定時間の間三相接続回路を単相接続回路に切り替
える切替手段とを有することを特徴とする三相誘
導電動機の制御装置。 ２ 前記単相接続回路は、第２の界磁巻線と直列
に接続されるコンデンサを有することを特徴とす
る請求項１記載の三相誘導電動機の制御装置。 ３ 前記単相接続手段は、第１の界磁巻線、第２
の界磁巻線、第３の界磁巻線、及びコンデンサを
コンデンサラン型の単相誘導電動機の巻線配置に
接続することを特徴とする請求項１記載の制御装
置。[Claims for Utility Model Registration] 1. In a three-phase induction motor in which a first field winding, a second field winding, and a third field winding are arranged on a stator so as to be shifted from each other by 120 degrees. In this three-phase induction motor control device, a first field winding, a second field winding, and a third field winding are connected in a star or delta shape, and this connection circuit is connected to a three-phase induction motor. A three-phase connection means that is connected to each power line of an AC power source to form a three-phase connection circuit, and the first field winding and the second field winding are connected in parallel, and this connection circuit is formed. a single-phase connection means that connects to a predetermined two-phase power supply line of the three-phase AC power supply line to form a single-phase connection circuit; A control device for a three-phase induction motor, comprising a switching means for switching a phase connection circuit to a single-phase connection circuit. 2. The control device for a three-phase induction motor according to claim 1, wherein the single-phase connection circuit includes a capacitor connected in series with the second field winding. 3. The single-phase connection means includes a first field winding, a second field winding, and a second field winding.
2. The control device according to claim 1, wherein the field winding, the third field winding, and the capacitor are connected to a winding arrangement of a capacitor run type single-phase induction motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11309890U JPH0472894U (en) | 1990-10-30 | 1990-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11309890U JPH0472894U (en) | 1990-10-30 | 1990-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0472894U true JPH0472894U (en) | 1992-06-26 |
Family
ID=31860644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11309890U Pending JPH0472894U (en) | 1990-10-30 | 1990-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0472894U (en) |
-
1990
- 1990-10-30 JP JP11309890U patent/JPH0472894U/ja active Pending
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