CH532252A - Electrical measuring instrument with a protective circuit arrangement with a cut-off relay and a transistor amplifier arranged upstream of it - Google Patents

Electrical measuring instrument with a protective circuit arrangement with a cut-off relay and a transistor amplifier arranged upstream of it

Info

Publication number
CH532252A
CH532252A CH242371A CH242371A CH532252A CH 532252 A CH532252 A CH 532252A CH 242371 A CH242371 A CH 242371A CH 242371 A CH242371 A CH 242371A CH 532252 A CH532252 A CH 532252A
Authority
CH
Switzerland
Prior art keywords
relay
cut
measuring instrument
circuit arrangement
protective circuit
Prior art date
Application number
CH242371A
Other languages
German (de)
Inventor
Nusche Georg
Original Assignee
Siemens Ag
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 claimed from DE19702009318 external-priority patent/DE2009318C3/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of CH532252A publication Critical patent/CH532252A/en

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
    • H02H3/20—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 voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/36—Overload-protection arrangements or circuits for electric measuring instruments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
CH242371A 1970-02-23 1971-02-19 Electrical measuring instrument with a protective circuit arrangement with a cut-off relay and a transistor amplifier arranged upstream of it CH532252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702009318 DE2009318C3 (en) 1970-02-23 Overload protection for electrical measuring devices

Publications (1)

Publication Number Publication Date
CH532252A true CH532252A (en) 1972-12-31

Family

ID=5763588

Family Applications (1)

Application Number Title Priority Date Filing Date
CH242371A CH532252A (en) 1970-02-23 1971-02-19 Electrical measuring instrument with a protective circuit arrangement with a cut-off relay and a transistor amplifier arranged upstream of it

Country Status (3)

Country Link
AT (1) AT306849B (en)
CH (1) CH532252A (en)
FR (1) FR2080697B3 (en)

Also Published As

Publication number Publication date
DE2009318A1 (en) 1971-09-09
FR2080697B3 (en) 1973-10-19
AT306849B (en) 1973-04-25
FR2080697A7 (en) 1971-11-19
DE2009318B2 (en) 1972-06-22

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Legal Events

Date Code Title Description
PL Patent ceased