NL173900B - DEVICE FOR PROTECTING PIPES IN A MULTI-PHASE NETWORK. - Google Patents

DEVICE FOR PROTECTING PIPES IN A MULTI-PHASE NETWORK.

Info

Publication number
NL173900B
NL173900B NL7117018A NL7117018A NL173900B NL 173900 B NL173900 B NL 173900B NL 7117018 A NL7117018 A NL 7117018A NL 7117018 A NL7117018 A NL 7117018A NL 173900 B NL173900 B NL 173900B
Authority
NL
Netherlands
Prior art keywords
phase network
protecting pipes
pipes
protecting
network
Prior art date
Application number
NL7117018A
Other languages
Dutch (nl)
Other versions
NL173900C (en
NL7117018A (en
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of NL7117018A publication Critical patent/NL7117018A/xx
Publication of NL173900B publication Critical patent/NL173900B/en
Application granted granted Critical
Publication of NL173900C publication Critical patent/NL173900C/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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
    • 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
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
NL7117018A 1970-12-14 1971-12-10 DEVICE FOR PROTECTING PIPES IN A MULTI-PHASE NETWORK. NL173900C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1850470A CH525578A (en) 1970-12-14 1970-12-14 Distance relay for multi-phase networks

Publications (3)

Publication Number Publication Date
NL7117018A NL7117018A (en) 1972-06-16
NL173900B true NL173900B (en) 1983-10-17
NL173900C NL173900C (en) 1984-03-16

Family

ID=4433436

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7117018A NL173900C (en) 1970-12-14 1971-12-10 DEVICE FOR PROTECTING PIPES IN A MULTI-PHASE NETWORK.

Country Status (6)

Country Link
BE (1) BE776593A (en)
CH (1) CH525578A (en)
DE (1) DE2100619C3 (en)
GB (1) GB1366946A (en)
NL (1) NL173900C (en)
SE (1) SE366616B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1422346A (en) * 1972-11-28 1976-01-28
CH640675A5 (en) * 1978-06-01 1984-01-13 Bbc Brown Boveri & Cie METHOD AND DEVICE FOR DETERMINING THE ERROR DIRECTION WITH REGARD TO A MEASURING PLACE ON ELECTRICAL LINES.

Also Published As

Publication number Publication date
BE776593A (en) 1972-04-04
SE366616B (en) 1974-04-29
DE2100619C3 (en) 1980-11-06
NL173900C (en) 1984-03-16
CH525578A (en) 1972-07-15
DE2100619A1 (en) 1972-06-29
DE2100619B2 (en) 1980-03-13
GB1366946A (en) 1974-09-18
NL7117018A (en) 1972-06-16

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee