JP7735589B2 - 電流差動継電装置 - Google Patents
電流差動継電装置Info
- Publication number
- JP7735589B2 JP7735589B2 JP2024552601A JP2024552601A JP7735589B2 JP 7735589 B2 JP7735589 B2 JP 7735589B2 JP 2024552601 A JP2024552601 A JP 2024552601A JP 2024552601 A JP2024552601 A JP 2024552601A JP 7735589 B2 JP7735589 B2 JP 7735589B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- relay
- current differential
- transmission line
- differential relay
- 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.)
- Active
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
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
-
- 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
- H02H3/08—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 excess current
-
- 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
- H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2022/040023 WO2024089826A1 (ja) | 2022-10-26 | 2022-10-26 | 電流差動継電装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2024089826A1 JPWO2024089826A1 (https=) | 2024-05-02 |
| JP7735589B2 true JP7735589B2 (ja) | 2025-09-08 |
Family
ID=90830289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2024552601A Active JP7735589B2 (ja) | 2022-10-26 | 2022-10-26 | 電流差動継電装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7735589B2 (https=) |
| WO (1) | WO2024089826A1 (https=) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5805394A (en) | 1997-06-17 | 1998-09-08 | Sundstrand Corporation | Overvoltage protection circuit for a generating system utilizing a fault current sensing Circuit in combination with a shunting circuit |
| US20170358913A1 (en) | 2016-06-13 | 2017-12-14 | Schweitzer Engineering Laboratories, Inc. | Overcurrent Element in Time Domain |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS3710628B1 (https=) * | 1959-04-07 | 1962-08-09 |
-
2022
- 2022-10-26 WO PCT/JP2022/040023 patent/WO2024089826A1/ja not_active Ceased
- 2022-10-26 JP JP2024552601A patent/JP7735589B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5805394A (en) | 1997-06-17 | 1998-09-08 | Sundstrand Corporation | Overvoltage protection circuit for a generating system utilizing a fault current sensing Circuit in combination with a shunting circuit |
| US20170358913A1 (en) | 2016-06-13 | 2017-12-14 | Schweitzer Engineering Laboratories, Inc. | Overcurrent Element in Time Domain |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024089826A1 (ja) | 2024-05-02 |
| JPWO2024089826A1 (https=) | 2024-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20241011 |
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| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20250729 |
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| A61 | First payment of annual fees (during grant procedure) |
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| R150 | Certificate of patent or registration of utility model |
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