JPS5534833A - Protecting device for inverter - Google Patents
Protecting device for inverterInfo
- Publication number
- JPS5534833A JPS5534833A JP10705878A JP10705878A JPS5534833A JP S5534833 A JPS5534833 A JP S5534833A JP 10705878 A JP10705878 A JP 10705878A JP 10705878 A JP10705878 A JP 10705878A JP S5534833 A JPS5534833 A JP S5534833A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- switching element
- thyristor
- capacitor
- sensed
- 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.)
- Granted
Links
Abstract
PURPOSE: To reduce the voltage-increase rate to be applied to circuit elements, by sensing an overcurrent due to the commutation failure of an inverter, and triggering a switching element of an inverter by the sensed signal, thereby bypassing the defective current to a capacitor which is in series with the switching element.
CONSTITUTION: A commutation failure of an inverter is sensed by an overcurrent sensor 12, which in turn sends out an OFF signal (i.e. a sensed signal) to a gate circuit of an element 1a of an inverter circuit 1 and triggers a thyristor 10 that is a switching element. The defective current is bypassed to a capacitor 11 which is connected to the thyristor 10 in series, therby the voltage-increase rate (dVAK/dt) which is applied to the elements of the inverter 1 can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53107058A JPS607468B2 (en) | 1978-08-31 | 1978-08-31 | Inverter circuit protection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53107058A JPS607468B2 (en) | 1978-08-31 | 1978-08-31 | Inverter circuit protection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5534833A true JPS5534833A (en) | 1980-03-11 |
JPS607468B2 JPS607468B2 (en) | 1985-02-25 |
Family
ID=14449422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53107058A Expired JPS607468B2 (en) | 1978-08-31 | 1978-08-31 | Inverter circuit protection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607468B2 (en) |
-
1978
- 1978-08-31 JP JP53107058A patent/JPS607468B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS607468B2 (en) | 1985-02-25 |
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