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GB1286283A - Arrangement for the supervision of direct currents - Google Patents

Arrangement for the supervision of direct currents

Info

Publication number
GB1286283A
GB1286283A GB50951/69A GB5095169A GB1286283A GB 1286283 A GB1286283 A GB 1286283A GB 50951/69 A GB50951/69 A GB 50951/69A GB 5095169 A GB5095169 A GB 5095169A GB 1286283 A GB1286283 A GB 1286283A
Authority
GB
United Kingdom
Prior art keywords
circuit
windings
current
resistors
feed
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.)
Expired
Application number
GB50951/69A
Inventor
Hans Schnabel
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.)
STARKSTROM ANLAGENBAU ERFURT
Original Assignee
STARKSTROM ANLAGENBAU ERFURT
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
Priority to DE19691946608 priority Critical patent/DE1946608A1/en
Priority to CH1444169A priority patent/CH499905A/en
Priority to CU33413A priority patent/CU33413A/en
Application filed by STARKSTROM ANLAGENBAU ERFURT filed Critical STARKSTROM ANLAGENBAU ERFURT
Priority to GB50951/69A priority patent/GB1286283A/en
Publication of GB1286283A publication Critical patent/GB1286283A/en
Expired legal-status Critical Current

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
    • H02H3/12—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 underload or no-load
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
    • G05B1/025—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals using inductance means
    • 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
    • H02H3/087—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 DC applications
    • 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
    • H02H3/18—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 reversal of direct current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

1286283 Protective arrangements; battery charging systems STARKSTROM-ANLAGENBAU ERFURT VEB 16 Oct 1969 50951/69 Headings H2H and H2K A protective arrangement for a direct-current circuit 1, e.g. a charging circuit for an accumulator, comprises magnetic cores 2, 3 with direct current windings carrying the circuit current, windings 4, 5 connected in series with a rectifier bridge 9 to a square wave pulse generator 8, and feed-back windings 6, 7 connected through a variable resistor 12 to the rectifier bridge 9. The feed-back windings 6, 7 normally assist the D.C. windings which may be formed by the circuit 1. Under normal load conditions, the voltage drop across resistors 11, 12 is high and a device 13 is arranged to give no output to a relay circuit 14, 15. When the current drops or reverses, the voltage across the resistors 11, 12 falls and the device 13 provides an output to the relay circuit.
GB50951/69A 1969-06-27 1969-10-16 Arrangement for the supervision of direct currents Expired GB1286283A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19691946608 DE1946608A1 (en) 1969-06-27 1969-09-15 Arrangement for monitoring direct currents, in particular for charging devices for accumulators
CH1444169A CH499905A (en) 1969-06-27 1969-09-22 Arrangement for monitoring direct currents, in particular for charging devices for accumulators
CU33413A CU33413A (en) 1969-06-27 1969-10-03 SYSTEM FOR DIRECT CURRENT CONTROL, ESPECIALLY FOR INSTALLATIONS FOR CHARGING ACCUMULATORS
GB50951/69A GB1286283A (en) 1969-06-27 1969-10-16 Arrangement for the supervision of direct currents

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DD14081169 1969-06-27
DE19691946608 DE1946608A1 (en) 1969-06-27 1969-09-15 Arrangement for monitoring direct currents, in particular for charging devices for accumulators
GB50951/69A GB1286283A (en) 1969-06-27 1969-10-16 Arrangement for the supervision of direct currents

Publications (1)

Publication Number Publication Date
GB1286283A true GB1286283A (en) 1972-08-23

Family

ID=71083311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50951/69A Expired GB1286283A (en) 1969-06-27 1969-10-16 Arrangement for the supervision of direct currents

Country Status (4)

Country Link
CH (1) CH499905A (en)
CU (1) CU33413A (en)
DE (1) DE1946608A1 (en)
GB (1) GB1286283A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332652C2 (en) * 1983-09-09 1986-04-03 Matsushita Electric Works, Ltd., Kadoma, Osaka Residual current detector
DE3543948A1 (en) * 1985-12-12 1987-06-19 Siemens Ag Arrangement for detecting fault currents
FR2744529B1 (en) * 1996-02-01 1999-02-26 Robert Jean METHOD AND DEVICE FOR MEASURING LOW VALUE DC ELECTRIC CURRENT
ES2294966B1 (en) * 2007-05-16 2009-02-16 Premo, S.A. "LOW CONSUMPTION CURRENT TRANSDUCER".
US10203363B2 (en) 2016-12-14 2019-02-12 General Electric Company DC leakage current detector and method of operation thereof for leakage current detection in DC power circuits

Also Published As

Publication number Publication date
CU33413A (en) 1971-08-06
DE1946608A1 (en) 1971-03-18
CH499905A (en) 1970-11-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees