JPS58193894U - Protection circuit for inverter equipment - Google Patents
Protection circuit for inverter equipmentInfo
- Publication number
- JPS58193894U JPS58193894U JP9025582U JP9025582U JPS58193894U JP S58193894 U JPS58193894 U JP S58193894U JP 9025582 U JP9025582 U JP 9025582U JP 9025582 U JP9025582 U JP 9025582U JP S58193894 U JPS58193894 U JP S58193894U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- inverter
- protection circuit
- short circuit
- breaker
- 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
Landscapes
- Protection Of Static Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は電圧源形インバータをサイリスク定電圧直流電
源で付勢するインバータ装置の一般的構成を示す系統図
、第2図は本考案によるインバータ装置の保護回路の一
実施例を示すブロック図、第3図は第1図の短絡事故時
の状態を示す等価回路図、第4図は従来の保護回路によ
る保護動作を説明するための事故電流波形図、第5図は
本考案による保護動作を説明するための事故電流波形図
である。
1・・・サイリスク定電圧直流電源、2・・・電圧源形
インバータ、3・・・サイリスタ順逆変換器、4・・・
直流しゃ断器、5・・・直流リア・クトル、6.7・・
・コンデンサ、8・・・トランジスタインバータ、9・
・・交流電動機、10・・・直流短絡検出回路、11・
・・直流しゃ断器用外し指令回路、12・・・ベースカ
ットオフ回路。
第2図Fig. 1 is a system diagram showing the general configuration of an inverter device that energizes a voltage source type inverter with a SIRIS constant voltage DC power supply, and Fig. 2 is a block diagram showing an embodiment of the protection circuit of the inverter device according to the present invention. Fig. 3 is an equivalent circuit diagram showing the state at the time of the short circuit accident in Fig. 1, Fig. 4 is an accident current waveform diagram to explain the protection operation by the conventional protection circuit, and Fig. 5 is the protection operation according to the present invention. It is a fault current waveform diagram for explanation. 1... Thyrisk constant voltage DC power supply, 2... Voltage source type inverter, 3... Thyristor forward/reverse converter, 4...
DC breaker, 5...DC breaker, 6.7...
・Capacitor, 8...Transistor inverter, 9・
...AC motor, 10...DC short circuit detection circuit, 11.
...Removal command circuit for DC breaker, 12...Base cutoff circuit. Figure 2
Claims (1)
を介して順逆変換式のサイリスタ定電圧直流電源で付勢
するインバータ装置の上記サイリスタ定電圧直流電源の
直流短絡事故を検出する直流短絡検出回路と、上記直流
短絡検出信号に応じて上記直流しゃ断器に引外し指令を
発する引外し指令回路と、上記引外し指令と同時に上記
電圧源形インバータに動作停止指令を発するインバータ
カットオフ回路を備えたことを特徴とするインバータ装
置の保護回路。A DC short circuit detection circuit for detecting a DC short circuit accident in the thyristor constant voltage DC power supply of an inverter device that energizes one or more voltage source type inverters with a forward/reverse conversion type thyristor constant voltage DC power supply via a DC breaker. and a trip command circuit that issues a trip command to the DC breaker in response to the DC short circuit detection signal, and an inverter cutoff circuit that issues an operation stop command to the voltage source type inverter simultaneously with the trip command. A protection circuit for an inverter device, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9025582U JPS58193894U (en) | 1982-06-18 | 1982-06-18 | Protection circuit for inverter equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9025582U JPS58193894U (en) | 1982-06-18 | 1982-06-18 | Protection circuit for inverter equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58193894U true JPS58193894U (en) | 1983-12-23 |
Family
ID=30098786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9025582U Pending JPS58193894U (en) | 1982-06-18 | 1982-06-18 | Protection circuit for inverter equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58193894U (en) |
-
1982
- 1982-06-18 JP JP9025582U patent/JPS58193894U/en active Pending
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