JPS61199200U - - Google Patents
Info
- Publication number
- JPS61199200U JPS61199200U JP8305085U JP8305085U JPS61199200U JP S61199200 U JPS61199200 U JP S61199200U JP 8305085 U JP8305085 U JP 8305085U JP 8305085 U JP8305085 U JP 8305085U JP S61199200 U JPS61199200 U JP S61199200U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- circuit
- resistor
- series
- motors
- 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 5
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Multiple Motors (AREA)
Description
第１図イは本考案装置を示す回路図、第１図ロ
は電動機のトリツプを検出する接点がＯＮ動作し
た際にＯＮ動作した接点の数に比例して電流が流
れるように構成された他の実施例を示す回路図、
第２図はインバータ装置を示す回路図、第３図は
従来装置を示す回路図である。
２……整流器、４……直流リアクトル、６……
インバータ、８……ノーヒユーズブレーカ、８ａ
，８ｂ，８ｃ，８ｄ……ノーヒユーズブレーカの
接点、１０……電動機、１２……サイリスタ、１
４……ダイオード、１６……転流コンデンサ、１
８Ａ，１８Ｂ，１８Ｃ，１８Ｄ……リレー、１８
ａ，１８ｂ，１８ｃ，１８ｄ……接点、２０……
リレー、２２……接点、２４……抵抗、２６……
電流検出器、２８……遮断機。
Figure 1(a) is a circuit diagram showing the device of the present invention, and Figure 1(b) is a circuit diagram of the device according to the present invention. A circuit diagram showing an embodiment of
FIG. 2 is a circuit diagram showing an inverter device, and FIG. 3 is a circuit diagram showing a conventional device. 2... Rectifier, 4... DC reactor, 6...
Inverter, 8... No fuse breaker, 8a
, 8b, 8c, 8d... No fuse breaker contact, 10... Electric motor, 12... Thyristor, 1
4... Diode, 16... Commutation capacitor, 1
8A, 18B, 18C, 18D...Relay, 18
a, 18b, 18c, 18d... Contact, 20...
Relay, 22... Contact, 24... Resistor, 26...
Current detector, 28...breaker.
Claims (1)
タインバータの保護装置において、前記夫々の電
動機のトリツプを検出する接点と、前記夫々の接
点に直列に接続された抵抗と、前記接点と抵抗の
直列回路をさらに並列に接続した回路の一端に接
続され所定の電流値で動作する電流検出器とを設
け、あるいは、前記夫々の電動機のトリツプを検
出する接点と前記接点と抵抗の並列回路をさらに
直列に接続した回路の一端に接続され所定の電流
値で動作する電流検出器とを設け、前記電流検出
器が動作すると、サイリスタインバータへの電源
の供給が遮断されるよう構成されたことを特徴と
するサイリスタインバータの保護装置。 A protection device for a thyristor inverter that supplies power to a plurality of AC motors includes a contact for detecting a trip of each of the motors, a resistor connected in series to each of the contacts, and a series circuit of the contact and the resistor. Furthermore, a current detector connected to one end of the circuit connected in parallel and operating at a predetermined current value is provided, or a contact for detecting a trip of each of the motors and a parallel circuit of the contact and a resistor are further connected in series. a current detector that is connected to one end of the circuit and operates at a predetermined current value, and is configured such that when the current detector operates, the supply of power to the thyristor inverter is cut off. Inverter protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8305085U JPS61199200U (en) | 1985-05-31 | 1985-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8305085U JPS61199200U (en) | 1985-05-31 | 1985-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199200U true JPS61199200U (en) | 1986-12-12 |
Family
ID=30631324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8305085U Pending JPS61199200U (en) | 1985-05-31 | 1985-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199200U (en) |
-
1985
- 1985-05-31 JP JP8305085U patent/JPS61199200U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61199200U (en) | ||
| JPS6348213U (en) | ||
| JPS61134638U (en) | ||
| JPS6383996U (en) | ||
| JPS6317538U (en) | ||
| JPS6315194U (en) | ||
| JPS6251997U (en) | ||
| JPS6370230U (en) | ||
| JPS6310731U (en) | ||
| JPS6344633U (en) | ||
| JPS61123635U (en) | ||
| JPS62182086U (en) | ||
| JPS6450631U (en) | ||
| JPS6454790U (en) | ||
| JPS6257534U (en) | ||
| JPH0260443U (en) | ||
| JPS62177291U (en) | ||
| JPS6340132U (en) | ||
| JPS6184635U (en) | ||
| JPS58103587U (en) | Thyristor protection fuse blowout detection circuit | |
| JPS58153584U (en) | Protection circuit for power conversion equipment | |
| JPS62154704U (en) | ||
| JPS61144738U (en) | ||
| JPS6177698U (en) | ||
| JPS60129673U (en) | Overcurrent indicator control circuit |