GB2521143B - An improved ring main unit - Google Patents
An improved ring main unitInfo
- Publication number
- GB2521143B GB2521143B GB1321810.2A GB201321810A GB2521143B GB 2521143 B GB2521143 B GB 2521143B GB 201321810 A GB201321810 A GB 201321810A GB 2521143 B GB2521143 B GB 2521143B
- Authority
- GB
- United Kingdom
- Prior art keywords
- main unit
- ring main
- improved ring
- improved
- unit
- 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
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
-
- 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
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/28—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for meshed systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
-
- 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
- H02H3/083—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 for three-phase systems
-
- 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
- H02H3/32—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 in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—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 in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/042—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1321810.2A GB2521143B (en) | 2013-12-10 | 2013-12-10 | An improved ring main unit |
SG10201408195VA SG10201408195VA (en) | 2013-12-10 | 2014-12-09 | An Improved Ring Main Unit |
HK15106895.6A HK1206491A1 (en) | 2013-12-10 | 2015-07-20 | An improved ring main unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1321810.2A GB2521143B (en) | 2013-12-10 | 2013-12-10 | An improved ring main unit |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201321810D0 GB201321810D0 (en) | 2014-01-22 |
GB2521143A GB2521143A (en) | 2015-06-17 |
GB2521143B true GB2521143B (en) | 2016-02-24 |
Family
ID=50000478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1321810.2A Active GB2521143B (en) | 2013-12-10 | 2013-12-10 | An improved ring main unit |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB2521143B (en) |
HK (1) | HK1206491A1 (en) |
SG (1) | SG10201408195VA (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105703257B (en) * | 2016-04-18 | 2017-03-15 | 广东求精电气有限公司 | Solid insulation ring main unit |
CN115327284B (en) * | 2022-10-13 | 2023-04-07 | 江苏大烨智能电气股份有限公司 | Standardized looped network box multifunctional test tool and use method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2361591A (en) * | 2000-04-18 | 2001-10-24 | Alstom | Ring main unit with fault protection |
EP2654156A1 (en) * | 2012-04-17 | 2013-10-23 | Siemens Aktiengesellschaft | Fault protection system for a power system of dynamically positioned vessel |
-
2013
- 2013-12-10 GB GB1321810.2A patent/GB2521143B/en active Active
-
2014
- 2014-12-09 SG SG10201408195VA patent/SG10201408195VA/en unknown
-
2015
- 2015-07-20 HK HK15106895.6A patent/HK1206491A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2361591A (en) * | 2000-04-18 | 2001-10-24 | Alstom | Ring main unit with fault protection |
EP2654156A1 (en) * | 2012-04-17 | 2013-10-23 | Siemens Aktiengesellschaft | Fault protection system for a power system of dynamically positioned vessel |
Also Published As
Publication number | Publication date |
---|---|
HK1206491A1 (en) | 2016-01-08 |
GB2521143A (en) | 2015-06-17 |
GB201321810D0 (en) | 2014-01-22 |
SG10201408195VA (en) | 2015-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1206491 Country of ref document: HK |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1206491 Country of ref document: HK |