GB2159010B - Protecting alternators in electricity supply systems - Google Patents

Protecting alternators in electricity supply systems

Info

Publication number: GB2159010B
Authority: GB; United Kingdom
Prior art keywords: alternators; protecting; electricity supply; supply systems; systems
Prior art date: 1984-05-19
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.): Expired

Application number

GB08510695A

Other versions

GB8510695D0 (en

GB2159010A (en

Inventor

John William Warin

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Rolls Royce Power Engineering PLC

Original Assignee

Northern Engineering Industries PLC

Priority date (The priority date 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 date listed.)

1984-05-19

Filing date

1985-04-26

Publication date

1987-04-23

1985-04-26 Application filed by Northern Engineering Industries PLC filed Critical Northern Engineering Industries PLC

1985-06-05 Publication of GB8510695D0 publication Critical patent/GB8510695D0/en

1985-11-20 Publication of GB2159010A publication Critical patent/GB2159010A/en

1987-04-23 Application granted granted Critical

1987-04-23 Publication of GB2159010B publication Critical patent/GB2159010B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)
- 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
- H02H3/46—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 frequency deviations
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Power Engineering (AREA)
Nonlinear Science (AREA)
General Physics & Mathematics (AREA)
Control Of Eletrric Generators (AREA)
Measuring Frequencies, Analyzing Spectra (AREA)

GB08510695A 1984-05-19 1985-04-26 Protecting alternators in electricity supply systems Expired GB2159010B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB848412856A GB8412856D0 (en)	1984-05-19	1984-05-19	Frequency detection

Publications (3)

Publication Number	Publication Date
GB8510695D0 GB8510695D0 (en)	1985-06-05
GB2159010A GB2159010A (en)	1985-11-20
GB2159010B true GB2159010B (en)	1987-04-23

Family

ID=10561220

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
GB848412856A Pending GB8412856D0 (en)	1984-05-19	1984-05-19	Frequency detection
GB08510696A Expired GB2159963B (en)	1984-05-19	1985-04-26	Measuring rate of change of frequency
GB08510695A Expired GB2159010B (en)	1984-05-19	1985-04-26	Protecting alternators in electricity supply systems

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
GB848412856A Pending GB8412856D0 (en)	1984-05-19	1984-05-19	Frequency detection
GB08510696A Expired GB2159963B (en)	1984-05-19	1985-04-26	Measuring rate of change of frequency

Country Status (1)

Country	Link
GB (3)	GB8412856D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1989008939A1 (en) *	1988-03-15	1989-09-21	Siemens Aktiengesellschaft	Process for stabilizing an oscillatory electrical supply network
JP2730595B2 (en) *	1989-08-21	1998-03-25	株式会社四国総合研究所	Grid connection equipment for small power generators
JPH03256533A (en) *	1990-03-02	1991-11-15	Shikoku Sogo Kenkyusho:Kk	System linkage system
GB2370702B (en) *	2000-09-19	2003-07-09	Toshiba Kk	Line linkage protective device for electricity generation equipment
GB0102212D0 (en) *	2001-01-29	2001-03-14	Lattice Intellectual Property	Controller
ES2428240B1 (en)	2012-05-03	2015-03-10	Gamesa Innovation & Tech Sl	Method and Module to measure the frequency change rate of the waveforms related to the wind turbine converter units

1984
- 1984-05-19 GB GB848412856A patent/GB8412856D0/en active Pending
1985
- 1985-04-26 GB GB08510696A patent/GB2159963B/en not_active Expired
- 1985-04-26 GB GB08510695A patent/GB2159010B/en not_active Expired

Also Published As

Publication number	Publication date
GB2159963A (en)	1985-12-11
GB8510695D0 (en)	1985-06-05
GB8510696D0 (en)	1985-06-05
GB2159963B (en)	1987-08-12
GB8412856D0 (en)	1984-06-27
GB2159010A (en)	1985-11-20

Publication	Publication Date	Title
GB8512721D0 (en)	1985-06-26	Power supply system
GB8525557D0 (en)	1985-11-20	Power supply systems
GB2156575B (en)	1987-01-07	Fuel cell protective systems
GB8416153D0 (en)	1984-08-01	Power supply
GB8920377D0 (en)	1989-10-25	Electricity generating systems
DE3562965D1 (en)	1988-06-30	Current supply module
GB2158953B (en)	1988-01-20	Electricity metering equipment
IL76493A0 (en)	1986-01-31	Power supply system with improved transient response
GB2162706B (en)	1988-02-03	Backup power supply
GB8409999D0 (en)	1984-05-31	Fuel supply system
GB8600723D0 (en)	1986-02-19	Power supply systems
GB8527616D0 (en)	1985-12-11	Power supply
GB8429429D0 (en)	1985-01-03	Turbine generator systems
GB8407332D0 (en)	1984-04-26	Electrical generator system
GB2159010B (en)	1987-04-23	Protecting alternators in electricity supply systems
GB2224807B (en)	1992-07-08	Electricity generating system
GB8303272D0 (en)	1983-03-09	Electricity supply devices
GB8620112D0 (en)	1986-10-01	Electricity & generator
GB8508519D0 (en)	1985-05-09	Supercharger/electricity generator unit
GB8509543D0 (en)	1985-05-15	Fuel supply systems
GB8505795D0 (en)	1985-04-11	Power supply system
GB8422703D0 (en)	1984-10-10	Electricity generator
GB8415090D0 (en)	1984-07-18	Electricity generating system
GB8415703D0 (en)	1984-07-25	Electricity generating system
GB8816397D0 (en)	1988-08-17	Electricity supply system

Legal Events

Date	Code	Title	Description
2005-05-18	PE20	Patent expired after termination of 20 years	Effective date: 20050425