GB329337A - Improved protective switching device for parallel connected generators - Google Patents

Improved protective switching device for parallel connected generators

Info

Publication number
GB329337A
GB329337A GB3657428A GB3657428A GB329337A GB 329337 A GB329337 A GB 329337A GB 3657428 A GB3657428 A GB 3657428A GB 3657428 A GB3657428 A GB 3657428A GB 329337 A GB329337 A GB 329337A
Authority
GB
United Kingdom
Prior art keywords
group
load
switches
relays
groups
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
GB3657428A
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.)
GOVERT GROENEVELD
Original Assignee
GOVERT GROENEVELD
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 NL19477D priority Critical patent/NL19477C/xx
Application filed by GOVERT GROENEVELD filed Critical GOVERT GROENEVELD
Priority to GB3657428A priority patent/GB329337A/en
Publication of GB329337A publication Critical patent/GB329337A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
    • H02H7/062—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors for parallel connected generators

Abstract

329,337. Groeneveld, G. Dec. 11, 1928. Running generators in parallel. - In a supply system wherein two or more generators A, B, C, in parallel, supply load groups G, F, E, D of varied importance for example, on board ship where D might be the load of the steering motors and G the kitchen load, the less important load groups are disconnected by means of overload relays 2 which are independent of the overload and reverse current tripping arrangements on the main circuit breakers 1. In the arrangement shown, three relays control contacts 3 all in series through which the hold-on coils 4 of the load group switches are energized from the bus-bar 5. If generator A becomes heavily overloaded the relay 2 operates (before the circuit-breaker 1) and de-energizes the holding coil of the switch 4 of load group G. It does not de-energize the switches of groups F and E because independent maintaining circuits controlled by relays 6 in the main bus-bar circuit are established for the holding coils of these through back contacts 8 of these group switches. When, however, the group G is cut out the relay 6 for group F opens and if another generator fails group F is cut out and so on. Group D is not provided with cut-out means.
GB3657428A 1928-12-11 1928-12-11 Improved protective switching device for parallel connected generators Expired GB329337A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL19477D NL19477C (en) 1928-12-11
GB3657428A GB329337A (en) 1928-12-11 1928-12-11 Improved protective switching device for parallel connected generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3657428A GB329337A (en) 1928-12-11 1928-12-11 Improved protective switching device for parallel connected generators

Publications (1)

Publication Number Publication Date
GB329337A true GB329337A (en) 1930-05-12

Family

ID=10389369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3657428A Expired GB329337A (en) 1928-12-11 1928-12-11 Improved protective switching device for parallel connected generators

Country Status (2)

Country Link
GB (1) GB329337A (en)
NL (1) NL19477C (en)

Also Published As

Publication number Publication date
NL19477C (en)

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