SU1795857A1 - Device to protect capacitor bank built around four-arm bridge circuit with series-parallel connected capacitors and individual fuses in arms - Google Patents
Device to protect capacitor bank built around four-arm bridge circuit with series-parallel connected capacitors and individual fuses in armsInfo
- Publication number
- SU1795857A1 SU1795857A1 SU4927375/07A SU4927375A SU1795857A1 SU 1795857 A1 SU1795857 A1 SU 1795857A1 SU 4927375/07 A SU4927375/07 A SU 4927375/07A SU 4927375 A SU4927375 A SU 4927375A SU 1795857 A1 SU1795857 A1 SU 1795857A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- capacitor bank
- capacitors
- series
- input
- parallel connected
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
FIELD: electrical engineering. SUBSTANCE: each arm of bridge has series-parallel connected capacitors with individual fuses. Connected across diagonally opposite pair of junctions of bridge is current transformer responding to undalance current appearing in case of damage of capacitors. Introduced into device are: phase-sensitive reversing rectifier with signal input and switching input of reference phase, additional current transformer, additional matching gate, double-input summer, additional double-stage negative polarity comparator with independent and controlled time delay, adjustable-and-reversible shifting unit and adjustable and reversible shifting unit with disable input. Thanks to it symmetrical output characteristic of protection device is provided at any value and phase of initial unbalance current which makes unnecessary to select capacitors by rating to replace defective ones, thus increasing repairability and cutting down time taken for repair. Higher quality of characteristic increases sensitivity of device and, consequently, reliability oif operation of capacitor bank. EFFECT: enhanced repairability, cut down repair time, increased operation reliability of capacitor bank. 11 dwg
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4927375/07A SU1795857A1 (en) | 1991-02-12 | 1991-02-12 | Device to protect capacitor bank built around four-arm bridge circuit with series-parallel connected capacitors and individual fuses in arms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4927375/07A SU1795857A1 (en) | 1991-02-12 | 1991-02-12 | Device to protect capacitor bank built around four-arm bridge circuit with series-parallel connected capacitors and individual fuses in arms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1795857A1 true SU1795857A1 (en) | 1995-07-25 |
Family
ID=60538100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4927375/07A SU1795857A1 (en) | 1991-02-12 | 1991-02-12 | Device to protect capacitor bank built around four-arm bridge circuit with series-parallel connected capacitors and individual fuses in arms |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1795857A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2553276C2 (en) * | 2011-02-16 | 2015-06-10 | Абб Рисерч Лтд | Method and configuration for detection of internal malfunction in bank of capacitors connected by n bridge |
| RU2552528C2 (en) * | 2013-06-20 | 2015-06-10 | Открытое акционерное общество "Межрегиональная распределительная сетевая компания Центра и Приволжья" | Capacitor bank protection method and device for its implementation |
-
1991
- 1991-02-12 SU SU4927375/07A patent/SU1795857A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2553276C2 (en) * | 2011-02-16 | 2015-06-10 | Абб Рисерч Лтд | Method and configuration for detection of internal malfunction in bank of capacitors connected by n bridge |
| RU2552528C2 (en) * | 2013-06-20 | 2015-06-10 | Открытое акционерное общество "Межрегиональная распределительная сетевая компания Центра и Приволжья" | Capacitor bank protection method and device for its implementation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REG | Reference to a code of a succession state |
Ref country code: RU Ref legal event code: MM4A Effective date: 20080213 |