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
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