FR2288407A1 - Surveillance of parallel power generators - uses service parameter measurement with threshold detector - Google Patents
Surveillance of parallel power generators - uses service parameter measurement with threshold detectorInfo
- Publication number
- FR2288407A1 FR2288407A1 FR7531300A FR7531300A FR2288407A1 FR 2288407 A1 FR2288407 A1 FR 2288407A1 FR 7531300 A FR7531300 A FR 7531300A FR 7531300 A FR7531300 A FR 7531300A FR 2288407 A1 FR2288407 A1 FR 2288407A1
- Authority
- FR
- France
- Prior art keywords
- surveillance
- threshold detector
- power generators
- parameter measurement
- service parameter
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/36—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points of different systems, e.g. of parallel feeder systems
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Protection Of Static Devices (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
The system uses a '2 from 3' comparison and each power generating group has sensors to measure the service parameters. Each group has a protection stage and some method by which it is taken out of service. Differential service parameters are sensed by a threshold detector which can take the groups out of service. This surveillance system monitors the failure of performance of one power generator from a multiple of such generators that have parallel and common outputs.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742448878 DE2448878B2 (en) | 1974-10-14 | 1974-10-14 | MONITORING DEVICE FOR THREE OR MORE POWER UNITS WORKING IN PARALLEL TO SHUT DOWN A FAILED POWER UNIT |
DE19752507868 DE2507868B2 (en) | 1975-02-24 | 1975-02-24 | Monitoring device for several power units working in parallel |
DE19752507867 DE2507867B2 (en) | 1975-02-24 | 1975-02-24 | Monitoring device for several power units working in parallel |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2288407A1 true FR2288407A1 (en) | 1976-05-14 |
FR2288407B1 FR2288407B1 (en) | 1981-12-18 |
Family
ID=27186122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7531300A Granted FR2288407A1 (en) | 1974-10-14 | 1975-10-13 | Surveillance of parallel power generators - uses service parameter measurement with threshold detector |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS6041531B2 (en) |
AT (1) | AT343227B (en) |
CH (1) | CH599701A5 (en) |
FR (1) | FR2288407A1 (en) |
IT (1) | IT1043268B (en) |
NL (1) | NL7509490A (en) |
SE (1) | SE418424B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0212271Y2 (en) * | 1984-11-26 | 1990-04-06 | ||
DE3514429A1 (en) * | 1985-04-20 | 1986-10-23 | PS Förder- und Lagertechnik GmbH, 6800 Mannheim | Monitor for the motors of a traversing double drive for grab-dredger systems |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5021703Y2 (en) * | 1971-04-03 | 1975-07-01 | ||
JPS5249608B2 (en) * | 1973-01-17 | 1977-12-19 |
-
1975
- 1975-08-08 NL NL7509490A patent/NL7509490A/en not_active Application Discontinuation
- 1975-08-12 AT AT625075A patent/AT343227B/en not_active IP Right Cessation
- 1975-09-19 CH CH1219375A patent/CH599701A5/xx not_active IP Right Cessation
- 1975-10-10 IT IT28151/75A patent/IT1043268B/en active
- 1975-10-13 SE SE7511435A patent/SE418424B/en unknown
- 1975-10-13 FR FR7531300A patent/FR2288407A1/en active Granted
- 1975-10-14 JP JP50123734A patent/JPS6041531B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2288407B1 (en) | 1981-12-18 |
SE7511435L (en) | 1976-04-15 |
AT343227B (en) | 1978-05-10 |
JPS5163454A (en) | 1976-06-01 |
IT1043268B (en) | 1980-02-20 |
JPS6041531B2 (en) | 1985-09-17 |
ATA625075A (en) | 1977-09-15 |
NL7509490A (en) | 1976-04-20 |
CH599701A5 (en) | 1978-05-31 |
SE418424B (en) | 1981-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |