FR2427609A1 - Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants - Google Patents

Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants

Info

Publication number
FR2427609A1
FR2427609A1 FR7816226A FR7816226A FR2427609A1 FR 2427609 A1 FR2427609 A1 FR 2427609A1 FR 7816226 A FR7816226 A FR 7816226A FR 7816226 A FR7816226 A FR 7816226A FR 2427609 A1 FR2427609 A1 FR 2427609A1
Authority
FR
France
Prior art keywords
rectifier
high internal
internal impedance
battery
time constants
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
Application number
FR7816226A
Other languages
French (fr)
Other versions
FR2427609B1 (en
Inventor
Jean Leroy
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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.)
Filing date
Publication date
Application filed by Electricite de France SA filed Critical Electricite de France SA
Priority to FR7816226A priority Critical patent/FR2427609A1/en
Publication of FR2427609A1 publication Critical patent/FR2427609A1/en
Application granted granted Critical
Publication of FR2427609B1 publication Critical patent/FR2427609B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G01R31/386—Arrangements for measuring battery or accumulator variables using test-loads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

It is normally necessary to disconnect the DC supply for a check of battery condition, bur the present system avoids this operation and the risks of failure involved. It exploits the high internal impedance of the rectifier in an intermediate range of time constants, which will not therefore affect a measurement in parallelon that time scale. Timing signals, adjustable at intervals typically between 300 and 600 seconds and with duration of between 10 and 100 milliseconds, actuate the periodic connection of a load resistor across the battery terminals. If the resulting current is lower than a preset threshold, the alarm of low battery voltage is triggered. The timing and commutation systems are powered by the battery, through isolation diodes and reservoir condensers. The load resistor is protected by a series fuse.
FR7816226A 1978-05-31 1978-05-31 Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants Granted FR2427609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816226A FR2427609A1 (en) 1978-05-31 1978-05-31 Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816226A FR2427609A1 (en) 1978-05-31 1978-05-31 Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants

Publications (2)

Publication Number Publication Date
FR2427609A1 true FR2427609A1 (en) 1979-12-28
FR2427609B1 FR2427609B1 (en) 1981-12-18

Family

ID=9208893

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816226A Granted FR2427609A1 (en) 1978-05-31 1978-05-31 Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants

Country Status (1)

Country Link
FR (1) FR2427609A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027254A1 (en) * 1979-10-13 1981-04-22 NORKA Norddeutsche Kunststoff- und Elektro-Gesellschaft Stäcker & Co. mbH Automatic checking arrangement for electrical appliances and installations which contain rechargeable batteries to keep them functioning in case of mains failure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648380A1 (en) * 1976-10-26 1978-04-27 Hartmut Ing Grad Unruh Battery cell test circuit determining capacity - has load circuit connected at regular intervals via pulsed switch to sense variations in internal impedance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648380A1 (en) * 1976-10-26 1978-04-27 Hartmut Ing Grad Unruh Battery cell test circuit determining capacity - has load circuit connected at regular intervals via pulsed switch to sense variations in internal impedance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027254A1 (en) * 1979-10-13 1981-04-22 NORKA Norddeutsche Kunststoff- und Elektro-Gesellschaft Stäcker & Co. mbH Automatic checking arrangement for electrical appliances and installations which contain rechargeable batteries to keep them functioning in case of mains failure

Also Published As

Publication number Publication date
FR2427609B1 (en) 1981-12-18

Similar Documents

Publication Publication Date Title
US4737761A (en) Feeding of electrical energy to circuits on a wheel for a tire-monitoring device
GB1480736A (en) Electrodiathermy apparatus
ATE34888T1 (en) RESIDUAL CURRENT DIFFERENTIAL DEVICE EQUIPPED WITH DEVICE FOR MONITORING ELECTRONIC POWER SUPPLY.
US20050146335A1 (en) Electrical leakage detection circuit
GB1401146A (en) Fire alarm system with remote central station
KR880701029A (en) Electric circuit protection device and method
ES8707791A1 (en) Constant current power supply system with redundancy for resistance temperature detector.
ATE124819T1 (en) VOLTAGE REGULATION AND DISPLAY ARRANGEMENT.
CA1264809C (en) Voltage loss detector
FR2427609A1 (en) Periodic check of battery condition in buffer systems - using high internal impedance of rectifier in intermediate range of time constants
JPS6360612B2 (en)
GB1262828A (en) An installation comprising a current converter comprising semiconductor rectifier elements and a monitoring arrangement for the current converter
JPS5764398A (en) Memory device
GB1347007A (en) Vehicle battery charging system
GB1052078A (en) Improvements in or relating to electrical generating systems
GB1236837A (en) Protective relay power supply
GB1429180A (en) Alarm circuits
JPS54108250A (en) Low voltage detecting circuit
KR890001840Y1 (en) Alarm apparatus
EP0539775A3 (en) Device for charging a battery
FR2347807A1 (en) Protection circuit for equipment with DC supply - acts in case of supply grounding or introduction of HV and uses Wheatstone bridge
SU765843A1 (en) Multipoint indication device
JPS6110450Y2 (en)
KR890000468Y1 (en) Safety device of gas valve for emergency
SU1321626A1 (en) Rail circuit

Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse